128 lines
3.8 KiB
Bash
Executable File
128 lines
3.8 KiB
Bash
Executable File
#!/system/bin/sh
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# Copyright (C) 2021 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Periodically arms a perfetto trace config for mm_events
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# The config is triggered by the mm_events kmem_activity trigger
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# This script gets executed as a oneshot service from perfetto.rc
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# when persist.mm_events.enabled is set to true.
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DEFAULT_TRACE_CONFIG=<<EOF
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unique_session_name: "perfetto_mm_events_session"
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bugreport_score: 100
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buffers: {
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size_kb: 512
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fill_policy: DISCARD
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}
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data_sources: {
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config {
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name: "linux.sys_stats"
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sys_stats_config {
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vmstat_period_ms: 500
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vmstat_counters: VMSTAT_NR_FREE_PAGES
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vmstat_counters: VMSTAT_NR_SLAB_RECLAIMABLE
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vmstat_counters: VMSTAT_NR_SLAB_UNRECLAIMABLE
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vmstat_counters: VMSTAT_NR_ACTIVE_FILE
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vmstat_counters: VMSTAT_NR_INACTIVE_FILE
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vmstat_counters: VMSTAT_NR_ACTIVE_ANON
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vmstat_counters: VMSTAT_NR_INACTIVE_ANON
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vmstat_counters: VMSTAT_WORKINGSET_REFAULT
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vmstat_counters: VMSTAT_WORKINGSET_ACTIVATE
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vmstat_counters: VMSTAT_NR_FILE_PAGES
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vmstat_counters: VMSTAT_PGPGIN
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vmstat_counters: VMSTAT_PGPGOUT
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vmstat_counters: VMSTAT_PSWPIN
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vmstat_counters: VMSTAT_PSWPOUT
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vmstat_counters: VMSTAT_PGSTEAL_KSWAPD_DMA
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vmstat_counters: VMSTAT_PGSTEAL_KSWAPD_NORMAL
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vmstat_counters: VMSTAT_PGSTEAL_KSWAPD_MOVABLE
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vmstat_counters: VMSTAT_PGSTEAL_DIRECT_DMA
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vmstat_counters: VMSTAT_PGSTEAL_DIRECT_NORMAL
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vmstat_counters: VMSTAT_PGSTEAL_DIRECT_MOVABLE
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vmstat_counters: VMSTAT_PGSCAN_KSWAPD_DMA
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vmstat_counters: VMSTAT_PGSCAN_KSWAPD_NORMAL
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vmstat_counters: VMSTAT_PGSCAN_KSWAPD_MOVABLE
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vmstat_counters: VMSTAT_PGSCAN_DIRECT_DMA
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vmstat_counters: VMSTAT_PGSCAN_DIRECT_NORMAL
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vmstat_counters: VMSTAT_PGSCAN_DIRECT_MOVABLE
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vmstat_counters: VMSTAT_COMPACT_MIGRATE_SCANNED
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vmstat_counters: VMSTAT_COMPACT_FREE_SCANNED
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}
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}
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}
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data_sources: {
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config {
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name: "linux.ftrace"
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ftrace_config {
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ftrace_events: "vmscan/mm_vmscan_kswapd_wake"
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ftrace_events: "vmscan/mm_vmscan_kswapd_sleep"
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ftrace_events: "vmscan/mm_vmscan_direct_reclaim_begin"
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ftrace_events: "vmscan/mm_vmscan_direct_reclaim_end"
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ftrace_events: "compaction/mm_compaction_begin"
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ftrace_events: "compaction/mm_compaction_end"
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}
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}
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}
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trigger_config {
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trigger_mode: START_TRACING
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trigger_timeout_ms: 3600000
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triggers {
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name: "kmem_activity"
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stop_delay_ms: 360000
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}
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}
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EOF
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VENDOR_TRACE_CONFIG="/vendor/etc/mm_events.cfg"
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BASE_SLEEP=30
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SLEEP=$BASE_SLEEP
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BACKOFF_MULTIPLIER=2
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CONSECUTIVE_FAILURES=0
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FAILURES_THRESHOLD=10
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# Keep the mm events perfetto trace config armed
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while :
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do
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sleep $SLEEP
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# If an alternate vendor trace config exists use that instead of the default.
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if [ -f "$VENDOR_TRACE_CONFIG" ]; then
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/system/bin/perfetto -c "$VENDOR_TRACE_CONFIG" --txt -o /dev/null
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EXIT_CODE=$?
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else
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echo "$DEFAULT_TRACE_CONFIG" | /system/bin/perfetto -c - --txt -o /dev/null
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EXIT_CODE=$?
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fi
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if [[ $EXIT_CODE -ne 0 ]]; then
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SLEEP=$(($SLEEP * $BACKOFF_MULTIPLIER))
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CONSECUTIVE_FAILURES=$(($CONSECUTIVE_FAILURES + 1))
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if [ $CONSECUTIVE_FAILURES -ge $FAILURES_THRESHOLD ]; then
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exit 1
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fi
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else
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SLEEP=$BASE_SLEEP
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CONSECUTIVE_FAILURES=0
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fi
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done
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