summaryrefslogtreecommitdiff
path: root/tools/perf/util/debug.c
diff options
context:
space:
mode:
authorJiri Olsa <jolsa@kernel.org>2014-07-11 16:49:54 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-08-12 19:03:01 +0400
commitcee3ab9caa7ae5ee81027e60c0109063664d9217 (patch)
treee80609d146065911272a056c6dc126cbc7dd6a13 /tools/perf/util/debug.c
parent94786b67b5f4577c16486e8eb10ff045e59f80ef (diff)
downloadlinux-cee3ab9caa7ae5ee81027e60c0109063664d9217.tar.xz
perf tools: Add debug prints for ordered events queue
Adding some prints for ordered events queue, to help debug issues. Adding debug_ordered_events debug variable to be able to enable ordered events debug messages using: $ perf --debug ordered-events=2 report ... Also using oe pointer in perf_session__queue_event instead of chained session variable dereferencing. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-7p3mnnopjvsp9nmk9msqcfkm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/debug.c')
-rw-r--r--tools/perf/util/debug.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 71d419362634..ba357f3226c6 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -13,8 +13,12 @@
#include "util.h"
#include "target.h"
+#define NSECS_PER_SEC 1000000000ULL
+#define NSECS_PER_USEC 1000ULL
+
int verbose;
bool dump_trace = false, quiet = false;
+int debug_ordered_events;
static int _eprintf(int level, int var, const char *fmt, va_list args)
{
@@ -42,6 +46,35 @@ int eprintf(int level, int var, const char *fmt, ...)
return ret;
}
+static int __eprintf_time(u64 t, const char *fmt, va_list args)
+{
+ int ret = 0;
+ u64 secs, usecs, nsecs = t;
+
+ secs = nsecs / NSECS_PER_SEC;
+ nsecs -= secs * NSECS_PER_SEC;
+ usecs = nsecs / NSECS_PER_USEC;
+
+ ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ",
+ secs, usecs);
+ ret += vfprintf(stderr, fmt, args);
+ return ret;
+}
+
+int eprintf_time(int level, int var, u64 t, const char *fmt, ...)
+{
+ int ret = 0;
+ va_list args;
+
+ if (var >= level) {
+ va_start(args, fmt);
+ ret = __eprintf_time(t, fmt, args);
+ va_end(args);
+ }
+
+ return ret;
+}
+
/*
* Overloading libtraceevent standard info print
* function, display with -v in perf.
@@ -110,7 +143,8 @@ static struct debug_variable {
const char *name;
int *ptr;
} debug_variables[] = {
- { .name = "verbose", .ptr = &verbose },
+ { .name = "verbose", .ptr = &verbose },
+ { .name = "ordered-events", .ptr = &debug_ordered_events},
{ .name = NULL, }
};