diff options
Diffstat (limited to 'Documentation/x86')
| -rw-r--r-- | Documentation/x86/resctrl.rst | 18 | ||||
| -rw-r--r-- | Documentation/x86/x86_64/mm.rst | 2 |
2 files changed, 10 insertions, 10 deletions
diff --git a/Documentation/x86/resctrl.rst b/Documentation/x86/resctrl.rst index 058257dc56c8..387ccbcb558f 100644 --- a/Documentation/x86/resctrl.rst +++ b/Documentation/x86/resctrl.rst @@ -751,12 +751,12 @@ how we can measure the latency in cycles of reading from this region and visualize this data with a histogram that is available if CONFIG_HIST_TRIGGERS is set:: - # :> /sys/kernel/debug/tracing/trace - # echo 'hist:keys=latency' > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/trigger - # echo 1 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/enable + # :> /sys/kernel/tracing/trace + # echo 'hist:keys=latency' > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/trigger + # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable # echo 1 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure - # echo 0 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/enable - # cat /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/hist + # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable + # cat /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/hist # event histogram # @@ -785,11 +785,11 @@ cache of a platform. Here is how we can obtain details of the cache hits and misses using the platform's precision counters. :: - # :> /sys/kernel/debug/tracing/trace - # echo 1 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_l2/enable + # :> /sys/kernel/tracing/trace + # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable # echo 2 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure - # echo 0 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_l2/enable - # cat /sys/kernel/debug/tracing/trace + # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable + # cat /sys/kernel/tracing/trace # tracer: nop # diff --git a/Documentation/x86/x86_64/mm.rst b/Documentation/x86/x86_64/mm.rst index 9798676bb0bf..35e5e18c83d0 100644 --- a/Documentation/x86/x86_64/mm.rst +++ b/Documentation/x86/x86_64/mm.rst @@ -140,7 +140,7 @@ The direct mapping covers all memory in the system up to the highest memory address (this means in some cases it can also include PCI memory holes). -We map EFI runtime services in the 'efi_pgd' PGD in a 64Gb large virtual +We map EFI runtime services in the 'efi_pgd' PGD in a 64GB large virtual memory window (this size is arbitrary, it can be raised later if needed). The mappings are not part of any other kernel PGD and are only available during EFI runtime calls. |