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2016-01-07perf build: Use FEATURE-DUMP in bpf subprojectJiri Olsa2-1/+5
Using FEATURE-DUMP in bpf subproject for features detection in case bpf is built via perf. Keeping the current features detection otherwise. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama <pi3orama@163.com> Link: http://lkml.kernel.org/r/1450893514-9158-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07tools build feature: Use value assignment form for FEATURE-DUMP fileJiri Olsa1-5/+21
Changing the contents of the FEATURE-DUMP file, so it looks like: feature-backtrace=1 feature-dwarf=0 feature-fortify-source=1 feature-sync-compare-and-swap=0 This way it could get included in sub projects, so they won't be forced to redo features detection. Also now storing the complete set of features. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama <pi3orama@163.com> Link: http://lkml.kernel.org/r/1450893514-9158-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07tools build feature: Introduce feature_assign macroJiri Olsa1-1/+7
The feature_assign macro generates feature value assignment for name, like: $(call feature_assign,dwarf) == feature-dwarf=1 This will be used more in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama <pi3orama@163.com> Link: http://lkml.kernel.org/r/1450893514-9158-4-git-send-email-jolsa@kernel.org [ Rename it to feature_assign, the original shorter name was misleading, to say the least ;-) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07tools build feature: Move dwarf post unwind choice output into perfJiri Olsa2-9/+4
We decide what dwarf unwind to choose way after the Makefile.feature makefile is included. The $(dwarf-post-unwind) is not even set at that time. For the same reason it was never included in FEATURE-DUMP file. Moving it into perf VF=1 verbose display. $ make VF=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... ... LIBUNWIND_DIR: ... LIBDW_DIR: ... DWARF post unwind library: libunwind ... Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama <pi3orama@163.com> Link: http://lkml.kernel.org/r/1450893514-9158-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07tools build feature: Fix feature_check_display_code typoJiri Olsa1-1/+1
This function is cursed.. ;-) Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama <pi3orama@163.com> Link: http://lkml.kernel.org/r/1450893514-9158-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Make 'trace' or 'trace_fields' sort key default for tracepoint ↵Namhyung Kim2-5/+26
events When an evlist contains tracepoint events only, use 'trace' sort key as default. If --raw-trace option was given, use 'trace_fields' instead. This will make users more convenient to see trace result. Suggested-and-Acked-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-14-git-send-email-namhyung@kernel.org [ Check evlist in get_default_sort_order() fixing a segfault in 'perf test hists' reported by Jiri Olsa ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Add 'trace_fields' dynamic sort keyNamhyung Kim1-9/+38
The 'trace_fields' sort key is similar as 'trace' sort key, but it shows each fields separately. Each event will get different columns as their fields. $ perf report -s trace_fields --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 20K of event 'kmem:kmalloc' # Event count (approx.): 20533 # # Overhead Command call_site ptr bytes_req bytes_alloc gfp_flags # ........ ....... .................. .................. ......... ........... ................... # 99.89% perf ffffffffa01d4396 0xffff8803ffb79720 96 96 GFP_NOFS|GFP_ZERO 0.06% sleep ffffffff8114e1cd 0xffff8803d228a000 4096 4096 GFP_KERNEL 0.03% perf ffffffff811d6ae6 0xffff8803f7678f00 240 256 GFP_KERNEL|GFP_ZERO 0.00% perf ffffffff812263c1 0xffff880406172380 128 128 GFP_KERNEL 0.00% perf ffffffff812264b9 0xffff8803ffac1600 504 512 GFP_KERNEL 0.00% perf ffffffff81226634 0xffff880401dc5280 28 32 GFP_KERNEL 0.00% sleep ffffffff81226da9 0xffff8803ffac3a00 392 512 GFP_KERNEL # Samples: 20K of event 'kmem:kfree' # Event count (approx.): 20597 # # Overhead call_site ptr # ........ .................. .................. # 99.58% ffffffffa01d85ad 0xffff8803ffb79720 0.07% ffffffff81443f5c 0xffff8803f7669400 0.02% ffffffff811d5753 0xffff8803f7678f00 0.01% ffffffff81443f5c 0xffff8803f766be00 0.01% ffffffff8114e359 0xffff8803d228a000 0.01% ffffffff81443f5c 0xffff8800d156dc00 0.01% ffffffff81443f5c 0xffff8803f7669400 0.01% ffffffff8114e359 0xffff8803d228a000 0.01% ffffffff8114e359 0xffff8803d228a000 0.01% ffffffff8114e359 0xffff8803d228a000 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-13-git-send-email-namhyung@kernel.org [ Combined with "perf tools: Fix segfault when using -s trace_fields" ] Link: http://lkml.kernel.org/r/1451991518-25673-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Skip dynamic fields not defined for current eventNamhyung Kim7-18/+37
When there are multiple events, each dynamic sort key is defined just for one event. In this case other events will always show "N/A" for those fields. But they are meaningless and consume precious screen width. Let's skip those undefined dynamic fields. $ perf record -e kmem:kmalloc,kmem:kfree -a sleep 1 $ perf report -s 'comm,kmalloc.*' --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 20K of event 'kmem:kmalloc' # Event count (approx.): 20533 # # Overhead Command call_site ptr bytes_req bytes_alloc gfp_flags # ........ ....... .................. .................. ......... ........... ................... # 99.89% perf ffffffffa01d4396 0xffff8803ffb79720 96 96 GFP_NOFS|GFP_ZERO 0.06% sleep ffffffff8114e1cd 0xffff8803d228a000 4096 4096 GFP_KERNEL 0.03% perf ffffffff811d6ae6 0xffff8803f7678f00 240 256 GFP_KERNEL|GFP_ZERO 0.00% perf ffffffff812263c1 0xffff880406172380 128 128 GFP_KERNEL 0.00% perf ffffffff812264b9 0xffff8803ffac1600 504 512 GFP_KERNEL 0.00% perf ffffffff81226634 0xffff880401dc5280 28 32 GFP_KERNEL 0.00% sleep ffffffff81226da9 0xffff8803ffac3a00 392 512 GFP_KERNEL # Samples: 20K of event 'kmem:kfree' # Event count (approx.): 20597 # # Overhead Command # ........ .............. # 99.63% perf 0.14% sleep 0.11% irq/36-iwlwifi 0.11% kworker/u16:0 0.01% Xorg 0.00% firefox Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-12-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Support '<event>.*' dynamic sort keyNamhyung Kim1-15/+34
Support '*' character for field name to add all (non-common) fields as sort keys easily. $ perf report -s 'switch.*' --stdio ... # Overhead prev_comm prev_pid prev_prio prev_state next_comm next_pid next_prio # ........ ........... ......... ......... .......... ............ ........ ......... # 3.82% swapper/0 0 120 0 netctl-auto 18711 120 3.75% netctl-auto 18711 120 1 swapper/0 0 120 2.24% swapper/1 0 120 0 netctl-auto 18709 120 2.24% netctl-auto 18709 120 1 swapper/1 0 120 1.80% swapper/2 0 120 0 rcu_preempt 7 120 1.80% swapper/2 0 120 0 netctl-auto 18711 120 1.80% rcu_preempt 7 120 1 swapper/2 0 120 1.80% netctl-auto 18711 120 1 swapper/2 0 120 ... Suggested-and-acked-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-11-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Support shortcuts for events in dynamic sort keysNamhyung Kim1-20/+87
The dynamic sort key requires event name but specifying full event name is rather inconvenient. This patch adds more ways to identify the event in a more compact way. 1. If session has just one event, event name can be omitted. 2. Events can be accessed by index preceded by a percent sign. 3. A part of the name can be used, if it's not ambiguous. The partial name should not contain ':' in it. 4. Full system + event name is still used, it should contain ':'. So in the below example all does same thing: $ perf record -e sched:sched_switch -a sleep 1 $ perf report -s next_pid,next_comm $ perf report -s %1.next_pid,%1.next_comm $ perf report -s switch.next_pid,switch.next_comm $ perf report -s sched:sched_switch.next_pid,sched:sched_switch.next_comm Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-10-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf report/top: Add --raw-trace optionNamhyung Kim6-4/+41
The --raw-trace option allows disabling pretty printing by the event's print_fmt or plugin. Besides that, each dynamic sort key now can receive a 'raw' suffix separated by '/' to ask for the raw trace of a specific field. $ perf report -s comm,kmem:kmalloc.gfp_flags ... # Overhead Command gfp_flags # ........ ....... ................... # 99.89% perf GFP_NOFS|GFP_ZERO 0.06% sleep GFP_KERNEL 0.03% perf GFP_KERNEL|GFP_ZERO 0.01% perf GFP_KERNEL Now $ perf report -s comm,kmem:kmalloc.gfp_flags --raw-trace or $ perf report -s comm,kmem:kmalloc.gfp_flags/raw ... # Overhead Command gfp_flags # ........ ....... .......... # 99.89% perf 32848 0.06% sleep 208 0.03% perf 32976 0.01% perf 208 Suggested-and-Acked-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Add 'trace' sort keyNamhyung Kim3-16/+62
The 'trace' sort key is to show tracepoint event output using either print fmt or plugin. For example sched_switch event (using plugin) will show output like below: # perf record -e sched:sched_switch -a usleep 10 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.197 MB perf.data (69 samples) ] # $ perf report -s trace --stdio ... # Overhead Trace output # ........ ................................................... # 9.48% swapper/0:0 [120] R ==> transmission-gt:17773 [120] 9.48% transmission-gt:17773 [120] S ==> swapper/0:0 [120] 9.04% swapper/2:0 [120] R ==> transmission-gt:17773 [120] 8.92% transmission-gt:17773 [120] S ==> swapper/2:0 [120] 5.25% swapper/0:0 [120] R ==> kworker/0:1H:109 [100] 5.21% kworker/0:1H:109 [100] S ==> swapper/0:0 [120] 1.78% swapper/3:0 [120] R ==> transmission-gt:17773 [120] 1.78% transmission-gt:17773 [120] S ==> swapper/3:0 [120] 1.53% Xephyr:6524 [120] S ==> swapper/0:0 [120] 1.53% swapper/0:0 [120] R ==> Xephyr:6524 [120] 1.17% swapper/2:0 [120] R ==> irq/33-iwlwifi:233 [49] 1.13% irq/33-iwlwifi:233 [49] S ==> swapper/2:0 [120] Note that the 'trace' sort key works only for tracepoint events. If it's used to other type of events, just "N/A" will be printed. Suggested-and-acked-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Try to show pretty printed output for dynamic sort keysNamhyung Kim3-5/+102
Each tracepoint event has format string for print to improve readability. Try to parse the output and match the field name. If it finds one, use that for the result. If not, fallbacks to the original output. For example, sort on kmem:kmalloc.gfp_flags looks like below: (Note: libtraceevent plugins are not installed on my system. They might affect the output below) Before: # Overhead Command gfp_flags # ........ ....... .......... # 99.89% perf 32848 0.06% sleep 208 0.03% perf 32976 0.01% perf 208 After: # Overhead Command gfp_flags # ........ ....... ................... # 99.89% perf GFP_NOFS|GFP_ZERO 0.06% sleep GFP_KERNEL 0.03% perf GFP_KERNEL|GFP_ZERO 0.01% perf GFP_KERNEL Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-7-git-send-email-namhyung@kernel.org [ Fixed clash with earlier, updated patch in this patchkit ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Add dynamic sort key for tracepoint eventsNamhyung Kim1-0/+213
The existing sort keys are less useful for tracepoint events in that they are always sampled at the same place, the function where the tracepoint is located. For example, a 'perf report' on sched:sched_switch event looks like the following: # Overhead Command Shared Object Symbol # ........ ............... ................ .............. # 47.22% swapper [kernel.vmlinux] [k] __schedule 21.67% transmission-gt [kernel.vmlinux] [k] __schedule 8.23% netctl-auto [kernel.vmlinux] [k] __schedule 5.53% kworker/0:1H [kernel.vmlinux] [k] __schedule 1.98% Xephyr [kernel.vmlinux] [k] __schedule 1.33% irq/33-iwlwifi [kernel.vmlinux] [k] __schedule 1.17% wpa_cli [kernel.vmlinux] [k] __schedule 1.13% rcu_preempt [kernel.vmlinux] [k] __schedule 0.85% ksoftirqd/0 [kernel.vmlinux] [k] __schedule 0.77% Timer [kernel.vmlinux] [k] __schedule In fact, tracepoints have meaningful information in their fields but there's no way to use in 'perf report' currently. The dynamic sort keys are introduced in this patc to overcome this limitation. The sched:sched_switch events have following fields: # sudo cat /sys/kernel/debug/tracing/events/sched/sched_switch/format name: sched_switch ID: 268 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:char prev_comm[16]; offset:8; size:16; signed:1; field:pid_t prev_pid; offset:24; size:4; signed:1; field:int prev_prio; offset:28; size:4; signed:1; field:long prev_state; offset:32; size:8; signed:1; field:char next_comm[16]; offset:40; size:16; signed:1; field:pid_t next_pid; offset:56; size:4; signed:1; field:int next_prio; offset:60; size:4; signed:1; print fmt: "prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d", REC->prev_comm, REC->prev_pid, REC->prev_prio, REC->prev_state & (2048-1) ? __print_flags(REC->prev_state & (2048-1), "|", { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" }, { 16, "Z" }, { 32, "X" }, { 64, "x" }, { 128, "K"}, { 256, "W" }, { 512, "P" }, { 1024, "N" }) : "R", REC->prev_state & 2048 ? "+" : "", REC->next_comm, REC->next_pid, REC->next_prio With dynamic sort keys, you can use <event.field> as a sort key. Those dynamic keys are checked and created on demand. For instance, below is to sort by next_pid field output on the same data file: $ perf report -s comm,sched:sched_switch.next_pid --stdio ... # Overhead Command next_pid # ........ ............... .......... # 21.23% transmission-gt 0 20.86% swapper 17773 6.62% netctl-auto 0 5.25% swapper 109 5.21% kworker/0:1H 0 1.98% Xephyr 0 1.98% swapper 6524 1.98% swapper 27478 1.37% swapper 27476 1.17% swapper 233 Multiple dynamic sort keys are also supported: $ perf report -s comm,sched:sched_switch.next_pid,sched:sched_switch.next_comm --stdio ... # Overhead Command next_pid next_comm # ........ ............... .......... ................ # 20.86% swapper 17773 transmission-gt 9.64% transmission-gt 0 swapper/0 9.16% transmission-gt 0 swapper/2 5.25% swapper 109 kworker/0:1H 5.21% kworker/0:1H 0 swapper/0 2.14% netctl-auto 0 swapper/2 1.98% netctl-auto 0 swapper/0 1.98% swapper 6524 Xephyr 1.98% swapper 27478 netctl-auto 1.78% transmission-gt 0 swapper/3 1.53% Xephyr 0 swapper/0 1.29% netctl-auto 0 swapper/1 1.29% swapper 27476 netctl-auto 1.21% netctl-auto 0 swapper/3 1.17% swapper 233 irq/33-iwlwifi Note that pid 0 exists for each cpu so have comm of 'swapper/N'. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tools: Pass evlist to setup_sorting()Namhyung Kim10-23/+27
This is a preparation to support dynamic sort keys for tracepoint events. Dynamic sort keys can be created for specific fields in trace events so it needs the event information. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-5-git-send-email-namhyung@kernel.org [ Moving the evlist creation earlier in top was split to a previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf top: Create the evlist soonerNamhyung Kim1-6/+6
This is a preparation to support dynamic sort keys for tracepoint events. Dynamic sort keys can be created for specific fields in trace events so it needs the event information, so we need to pass the evlist to the sort routines, create it sooner so that the next patch can do that. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-5-git-send-email-namhyung@kernel.org [ Split from the patch passing the evlist to the sort routines ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07tools lib traceevent: Factor out and export print_event_field[s]()Namhyung Kim2-61/+72
The print_event_field() and print_event_fields() functions print basic information of a given field or event without the print format. They'll be used by dynamic sort keys later. Committer note: Rename it to pevent_print_field[s]() to get proper namespacing, as discussed with Steven Rostedt. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450876121-22494-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf hist: Save raw_data/size for tracepoint eventsNamhyung Kim2-0/+26
The raw_data and raw_size fields are to provide tracepoint specific information. They will be used by dynamic sort keys later. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450923377-18641-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf hist: Pass struct sample to __hists__add_entry()Namhyung Kim5-27/+32
This is a preparation to add more info into the hist_entry. Also it already passes too many argument, so passing sample directly will reduce the overhead of the function call. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1450804030-29193-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-06Merge branch 'for-mingo' of ↵Ingo Molnar5-23/+54
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU changes from Paul E. McKenney: - Adding transitivity uniformly to rcu_node structure ->lock acquisitions. (This is implemented by the first two commits on top of v4.4-rc2 due to the pervasive nature of this change.) - Documentation updates, including RCU requirements. - Expedited grace-period changes. - Miscellaneous fixes. - Linked-list fixes, courtesy of KTSAN. - Torture-test updates. - Late-breaking fix to sysrq-generated crash. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-06soreuseport: pass skb to secondary UDP socket lookupCraig Gallek1-0/+47
This socket-lookup path did not pass along the skb in question in my original BPF-based socket selection patch. The skb in the udpN_lib_lookup2 path can be used for BPF-based socket selection just like it is in the 'traditional' udpN_lib_lookup path. udpN_lib_lookup2 kicks in when there are greater than 10 sockets in the same hlist slot. Coincidentally, I chose 10 sockets per reuseport group in my functional test, so the lookup2 path was not excersised. This adds an additional set of tests with 20 sockets. Fixes: 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF") Fixes: 3ca8e4029969 ("soreuseport: BPF selection functional test") Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Craig Gallek <kraig@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-05soreuseport: BPF selection functional testCraig Gallek3-1/+469
This program will build classic and extended BPF programs and validate the socket selection logic when used with SO_ATTACH_REUSEPORT_CBPF and SO_ATTACH_REUSEPORT_EBPF. It also validates the re-programing flow and several edge cases. Signed-off-by: Craig Gallek <kraig@google.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-01ACPICA: getopt: Comment update, no functional changeBob Moore1-0/+1
ACPICA commit 0d784a90bc3aac75227c4459c3553de18b9ebe7a Document one of the option string operators. Link: https://github.com/acpica/acpica/commit/0d784a90 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-01ACPICA: Core: Major update for code formatting, no functional changesBob Moore3-0/+17
ACPICA commit dfa394471f6c01b2ee9433dbc143ec70cb9bca72 Mostly indentation inconsistencies across the code. Split some long lines, etc. Link: https://github.com/acpica/acpica/commit/dfa39447 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-24tools/testing/libnvdimm: cleanup mock resource lookupDan Williams1-46/+23
Push the locking around get_nfit_res() into get_nfit_res(). Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-12-19Merge branch 'fortglx/4.5/time' of ↵Thomas Gleixner1-1/+1
https://git.linaro.org/people/john.stultz/linux into timers/core Get the core time(keeping) updates from John Stultz - NTP robustness tweaks - Another signed overflow nailed down - More y2038 changes - Stop alarmtimer after resume - MAINTAINERS update - Selftest fixes
2015-12-17perf stat report: Allow to override aggr_modeJiri Olsa2-0/+27
Allowing to override record aggr_mode. It's possible to use perf stat like: $ perf stat report -A $ perf stat report --per-core $ perf stat report --per-socket To customize the recorded aggregate mode regardless what was used during the stat record command. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-19-git-send-email-jolsa@kernel.org [ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Process event update eventsJiri Olsa1-0/+1
Adding processing of event update events, so perf stat report can store additional info for events - unit,scale,name. Committer note: Before: # perf stat record -e power/energy-cores/ -a ^C Performance counter stats for 'system wide': 77.41 Joules power/energy-cores/ 1.597176695 seconds time elapsed # perf stat report Performance counter stats for '/home/acme/bin/perf stat record -e power/energy-cores/ -a': 332,488,114,176 power/energy-cores/ 1.597176695 seconds time elapsed # After, using the same perf.data file generated in the "Before" case above: # perf stat report Performance counter stats for '/home/acme/bin/perf stat record -e power/energy-cores/ -a': 77.41 Joules power/energy-cores/ 1.597176695 seconds time elapsed # Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-17-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Process stat and stat round eventsJiri Olsa1-0/+28
Adding processing of stat and stat round events. The stat data com in stat events, using generic function process_stat_round_event to store data under perf_evsel object. The stat-round events comes each interval or as last event in non interval mode. The function process_stat_round_event process stored data for each perf_evsel object and print it out. Committer note: After this patch: $ perf stat record usleep 1 Performance counter stats for 'usleep 1': 0.498381 task-clock (msec) # 0.571 CPUs utilized 2 context-switches # 0.004 M/sec 0 cpu-migrations # 0.000 K/sec 149 page-faults # 0.299 M/sec 1,271,635 cycles # 2.552 GHz 928,712 stalled-cycles-frontend # 73.03% frontend cycles idle 663,286 stalled-cycles-backend # 52.16% backend cycles idle 792,614 instructions # 0.62 insns per cycle # 1.17 stalled cycles per insn 136,850 branches # 274.589 M/sec <not counted> branch-misses (0.00%) 0.000873419 seconds time elapsed $ $ perf stat report Performance counter stats for '/home/acme/bin/perf stat record usleep 1': 0.498381 task-clock (msec) # 0.571 CPUs utilized 2 context-switches # 0.004 M/sec 0 cpu-migrations # 0.000 K/sec 149 page-faults # 0.299 M/sec 1,271,635 cycles # 2.552 GHz 928,712 stalled-cycles-frontend # 73.03% frontend cycles idle 663,286 stalled-cycles-backend # 52.16% backend cycles idle 792,614 instructions # 0.62 insns per cycle # 1.17 stalled cycles per insn 136,850 branches # 274.589 M/sec <not counted> branch-misses (0.00%) 0.000873419 seconds time elapsed $ Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-16-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Move csv_sep initialization before report commandJiri Olsa1-7/+7
So we have csv_sep properly initialized before report command leg. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-18-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Add support to initialize aggr_map from fileJiri Olsa1-0/+103
Using perf.data's perf_env data to initialize aggregate config. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-15-git-send-email-jolsa@kernel.org [ s/stat/st/g, s/socket/socket_id/g to fix 'already defined' build error with older distros (e.g. RHEL6.7) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Process stat config eventJiri Olsa1-0/+10
Adding processing of stat config event and initialize stat_config object. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-14-git-send-email-jolsa@kernel.org [ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Process cpu/threads mapsJiri Olsa1-2/+64
Adding processing of cpu/threads maps. Configuring session's evlist with these maps. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-13-git-send-email-jolsa@kernel.org [ s/stat/st/g, s/time/tm/g parameters to fix 'already defined' build error with older distros (e.g. RHEL6.7) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat report: Add report commandJiri Olsa2-4/+69
Adding 'perf stat report' command support. ATM it only processes attr events and display nothing. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-12-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Synthesize event update eventsJiri Olsa1-0/+59
Synthesize other events stuff not carried within attr event - unit, scale, name. Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-11-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Do not allow record with multiple runs modeJiri Olsa1-0/+5
We currently don't support storing multiple session in perf.data, so we can't allow -r option in stat record. $ perf stat -e cycles -r 2 record ls Cannot use -r option with perf stat record. Committer note: Before this patch we would a perf.data file such as: $ perf stat -e cycles -r 2 record ls <SNIP> Performance counter stats for 'ls' (2 runs): 3,935,236 cycles 0.002353261 seconds time elapsed ( +- 4.76% ) $ perf report -D | grep PERF_RECORD | grep ROUND 0xf0 [0]: failed to process type: 16 Error: failed to process sample $ Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Write stat round events on recordJiri Olsa1-0/+20
Writing stat round events on 'perf stat record' for each interval round. In non interval mode we store round event after the last stat event. Committer note: After the patch: $ perf report -D | grep PERF_RECORD | grep ROUND 0x852 [0x18]: PERF_RECORD_STAT_ROUND $ Reported-by: Kan Liang <kan.liang@intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-9-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Write stat events on recordJiri Olsa1-0/+19
Writing stat events on 'perf stat record' at the time we read counter values from kernel. Committer note: After the patch: $ perf stat record usleep 1 Performance counter stats for 'usleep 1': 0.598006 task-clock (msec) # 0.484 CPUs utilized 1 context-switches # 0.002 M/sec 0 cpu-migrations # 0.000 K/sec 52 page-faults # 0.087 M/sec 882,744 cycles # 1.476 GHz 581,416 stalled-cycles-frontend # 65.86% frontend cycles idle <not supported> stalled-cycles-backend 636,479 instructions # 0.72 insns per cycle # 0.91 stalled cycles per insn 129,334 branches # 216.275 M/sec 7,512 branch-misses # 5.81% of all branches 0.001235157 seconds time elapsed $ oldperf evlist task-clock context-switches cpu-migrations page-faults cycles stalled-cycles-frontend stalled-cycles-backend instructions branches branch-misses $ oldperf report --stdio Error: The perf.data file has no samples! # To display the perf.data header info, please use --header/--header-only options. # $ perf report -D | grep PERF_RECORD 0x5b0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 5504 0x5d8 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535 0x5ea [0x40]: PERF_RECORD_STAT_CONFIG 0x62a [0x30]: PERF_RECORD_STAT 0x65a [0x30]: PERF_RECORD_STAT 0x68a [0x30]: PERF_RECORD_STAT 0x6ba [0x30]: PERF_RECORD_STAT 0x6ea [0x30]: PERF_RECORD_STAT 0x71a [0x30]: PERF_RECORD_STAT 0x74a [0x30]: PERF_RECORD_STAT 0x77a [0x30]: PERF_RECORD_STAT 0x7aa [0x30]: PERF_RECORD_STAT -1 -1 0x7da [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text $ Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Add pipe support for record commandJiri Olsa1-11/+28
Allowing storing stat record data into pipe, so report tools (report/script) could read data directly from record. Committer note: Before this patch: $ perf stat record -o - usleep 1 | perf report -i - incompatible file format (rerun with -v to learn more) $ perf stat record -o - usleep 1 | perf script -i - incompatible file format (rerun with -v to learn more) $ ls -la perf.data ls: cannot access perf.data: No such file or directory $ After: $ perf stat record -o - usleep 1 | perf report -i - # To display the perf.data header info, please use # --header/--header-only options. # Error: The - file has no samples! $ perf stat record -o - usleep 1 | perf script -i - Display of symbols requested but neither sample IP nor sample address is selected. Hence, no addresses to convert to symbols. 0 [0x80]: failed to process type: 64 $ ls -la perf.data ls: cannot access perf.data: No such file or directory $ Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-7-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Store events IDs in perf data fileJiri Olsa1-0/+35
Store event IDs in evlist object so it get stored into perf.data file. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf evlist: Export id_add_fd()Jiri Olsa2-3/+6
Will be used to storing the event IDs in evlist object so it get stored into perf.data file. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-6-git-send-email-jolsa@kernel.org [ Split from the patch storing the ids in the perf.data file ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Synthesize stat record dataJiri Olsa1-13/+43
Synthesizing needed stat record data for report/script: - cpu/thread maps - stat config Committer note: New records generated on a perf.data file with this patch: $ perf report -D | grep PERF_RECORD_ 0x568 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 29097 0x590 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535 0x5a2 [0x40]: PERF_RECORD_STAT_CONFIG $ Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-5-git-send-email-jolsa@kernel.org [ Adjusted wrt kernel PERF_RECORD_MMAP added when introducing 'perf stat record' ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Initialize record featuresJiri Olsa2-0/+18
Disabling all non stat related features. Also as we now enable STAT feature in the data file, adding code to instruct session open to skip sample type checking for stat data files. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1446734469-11352-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf stat record: Add record commandJiri Olsa2-4/+128
Add 'perf stat record' command support. It creates simple (header only) perf.data file ATM. The record command could be specified anywhere among stat options. All stat command options are valid for stat record command with '-o' option exception. If specified for record command it denotes the perf data file name. Committer note: Set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless while avoiding that older tools show confusing messages, for instance, with sample_type = 0, we get: $ perf stat record usleep 1 Performance counter stats for 'usleep 1': 0.630237 task-clock (msec) # 0.528 CPUs utilized 1 context-switches # 0.002 M/sec 0 cpu-migrations # 0.000 K/sec 52 page-faults # 0.083 M/sec 978,312 cycles # 1.552 GHz 671,931 stalled-cycles-frontend # 68.68% frontend cycles idle <not supported> stalled-cycles-backend 646,379 instructions # 0.66 insns per cycle # 1.04 stalled cycles per insn 131,046 branches # 207.931 M/sec 7,073 branch-misses # 5.40% of all branches 0.001193240 seconds time elapsed $ oldperf evlist WARNING: The perf.data file's data size field is 0 which is unexpected. Was the 'perf record' command properly terminated? non matching sample_type $ While with sample_type set to PERF_SAMPLE_IDENTIFIER, after we re-run 'perf stat record usleep' we get: $ oldperf evlist WARNING: The perf.data file's data size field is 0 which is unexpected. Was the 'perf record' command properly terminated? task-clock context-switches cpu-migrations page-faults cycles stalled-cycles-frontend stalled-cycles-backend instructions branches branch-misses $ Which at least shows the names of the events in the perf.data file. Additionally, such files, when passed to 'perf report' will produce: $ oldperf report --stdio WARNING: The perf.data file's data size field is 0 which is unexpected. Was the 'perf record' command properly terminated? Warning: Kernel address maps (/proc/{kallsyms,modules}) were restricted. Check /proc/sys/kernel/kptr_restrict before running 'perf record'. As no suitable kallsyms nor vmlinux was found, kernel samples can't be resolved. Samples in kernel modules can't be resolved as well. Error: The perf.data file has no samples! # To display the perf.data header info, please use --header/--header-only options. # $ Which is confusing and can be solved by just adding the kernel mmap record, which will also remove that warning about the data size field being equal to zero, after generating the mmap record: $ perf stat record usleep 1 Performance counter stats for 'usleep 1': 0.600796 task-clock (msec) # 0.478 CPUs utilized 1 context-switches # 0.002 M/sec 0 cpu-migrations # 0.000 K/sec 54 page-faults # 0.090 M/sec 886,844 cycles # 1.476 GHz 582,169 stalled-cycles-frontend # 65.65% frontend cycles idle <not supported> stalled-cycles-backend 638,344 instructions # 0.72 insns per cycle # 0.91 stalled cycles per insn 130,204 branches # 216.719 M/sec 7,500 branch-misses # 5.76% of all branches 0.001255897 seconds time elapsed $ oldperf evlist task-clock context-switches cpu-migrations page-faults cycles stalled-cycles-frontend stalled-cycles-backend instructions branches branch-misses $ oldperf report --stdio Error: The perf.data file has no samples! # To display the perf.data header info, please use --header/--header-only options. # [acme@zoo linux]$ No warnings, sensible output about what are the events in the perf.data file and also a "file has no samples" message, which indeed it doesn't. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: htp://lkml.kernel.org/r/1446734469-11352-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf tools: Introduce stat perf.data header featureJiri Olsa3-0/+17
Introducing the 'stat' feature to mark a perf.data as created by the 'perf stat record' command. It contains no data. It's needed so that the report tools (report/script) can differentiate sampling data from counting data, because they need to be treated in a different way. In the future it might be used to store the version of the stat storage system used. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-28-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf report: Display newly added events in raw dumpJiri Olsa1-0/+19
The 'perf report -D' command will now display detailed output for these newly added events: event_update thread_map cpu_map stat stat_config stat_round Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-27-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf tools: Add perf_event__fprintf_event_update functionJiri Olsa2-0/+39
To display a 'event update' event for raw dump. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-26-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf tools: Add event_update event cpus typeJiri Olsa4-0/+79
Adding the cpumask 'event update' event, that stores/transfer the cpumask for a event. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-25-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf tools: Add event_update event name typeJiri Olsa4-0/+50
Adding name type 'event update' event, that stores/transfer events name. Event's name is stored within perf.data's EVENT_DESC feature, but we don't have it if we get the report data from pipe. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-24-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf tools: Add event_update event scale typeJiri Olsa4-0/+55
A__allocdding scale type 'event update' event, that stores/transfer events scale value. The PMU events can define the scale value which is used to multiply events data. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-23-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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