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Commit f21c54e4 authored by Kalesh Singh's avatar Kalesh Singh
Browse files

Add mm_events trace instance 

This instance is used as the signal for kmem_activity trigger
(See:go/mm-events-design)

Bug: 155928119
Test: adb shell ls /sys/kernel/tracing/instances/mm_events
Change-Id: I4d02fac3969ac837006eaa5396be5bc7797b6b81
parent 7ac860e5

cmds/atrace/atrace.rc

+61 −0
Original line number Diff line number Diff line
@@ -220,6 +220,67 @@ on late-init 
    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu15/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu15/trace



on post-fs-data

# Create MM Events Tracing Instance for Kmem Activity Trigger

    mkdir /sys/kernel/debug/tracing/instances/mm_events 0755 system system

    mkdir /sys/kernel/tracing/instances/mm_events 0755 system system



# Read and set per CPU buffer size

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/buffer_size_kb

    chmod 0666 /sys/kernel/tracing/instances/mm_events/buffer_size_kb



# Read and enable tracing

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/tracing_on

    chmod 0666 /sys/kernel/tracing/instances/mm_events/tracing_on



# Read and truncate kernel trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/trace



# Enable trace events

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/compaction/mm_compaction_begin/enable

    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/compaction/mm_compaction_begin/enable



# Read and clear per-CPU raw kernel trace

# Cannot use wildcards in .rc files. Update this if there is a phone with

# more CPUs.

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu0/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu0/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu1/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu1/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu2/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu2/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu3/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu3/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu4/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu4/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu5/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu5/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu6/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu6/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu7/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu7/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu8/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu8/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu9/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu9/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu10/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu10/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu11/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu11/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu12/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu12/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu13/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu13/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu14/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu14/trace

    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu15/trace

    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu15/trace



on property:persist.debug.atrace.boottrace=1

    start boottrace