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Commit 4dfca7c9 authored by Joel Fernandes's avatar Joel Fernandes
Browse files

atrace: Enable cgroup tracing 



In prep for work involving analyzing cgroup CPU time distribution,
enable this trace category in systrace.

Bug: 37997910
Test: Enabled cgroup category by systrace as root/non-root

Change-Id: Ie16cc347c3399eedcd7604fc3e9af607a45f34dc
Signed-off-by: default avatarJoel Fernandes <joelaf@google.com>
parent db886a09

cmds/atrace/atrace.cpp

+1 −0
Original line number Diff line number Diff line
@@ -120,6 +120,7 @@ static const TracingCategory k_categories[] = { 
        { OPT,      "events/sched/sched_waking/enable" },

        { OPT,      "events/sched/sched_blocked_reason/enable" },

        { OPT,      "events/sched/sched_cpu_hotplug/enable" },

        { OPT,      "events/cgroup/enable" },

    } },

    { "irq",        "IRQ Events",   0, {

        { REQ,      "events/irq/enable" },

cmds/atrace/atrace.rc

+4 −0
Original line number Diff line number Diff line
@@ -25,6 +25,8 @@ on post-fs 
    chown root shell /sys/kernel/tracing/events/sched/sched_blocked_reason/enable

    chown root shell /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable

    chown root shell /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable

    chown root shell /sys/kernel/debug/tracing/events/cgroup/enable

    chown root shell /sys/kernel/tracing/events/cgroup/enable

    chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable

    chown root shell /sys/kernel/tracing/events/power/cpu_frequency/enable

    chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable
@@ -77,6 +79,8 @@ on post-fs 
    chmod 0664 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0664 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0664 /sys/kernel/debug/tracing/events/cgroup/enable

    chmod 0664 /sys/kernel/tracing/events/cgroup/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable

    chmod 0664 /sys/kernel/tracing/events/power/cpu_frequency/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable