mirror of
https://github.com/MobileGL-Dev/MobileGL
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43 lines
2.8 KiB
Bash
43 lines
2.8 KiB
Bash
#!/usr/bin/env bash
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# bench_session.sh start|stop|status - P15 measurement-validity rule, device side (Lenovo Y700, SM8650).
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#
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# start:
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# 1. records each frequency-moving service's prior state and the msm_performance requests
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# (/data/local/tmp/p15-bench-session, also echoed to the caller's log);
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# 2. stops those services: thermal-engine, the QTI perf HAL, the vendor perf service, Lenovo's
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# performance and hyperschedule services. Their requests OUTLIVE them: the perf stack's
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# game-mode levels land in /sys/kernel/msm_performance/parameters/cpu_{max,min}_freq, a
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# frequency QoS that clamps scaling_max_freq below any pin (measured 2026-10-08: 787 / 1286 /
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# 1075 / 1248 MHz on policies 0/2/5/7 while pin_clocks.sh believed it had pinned 2035 MHz);
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# 3. releases those requests and re-pins (pin_clocks.sh).
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# stop: starts every service that was running before start, and verifies each is running again.
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# ALWAYS run it - callers trap it on EXIT/INT/TERM, so an interrupted session restores too.
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# Kernel-level protection (LMh, BCL, kernel thermal trip points) is never touched; the run's sampler
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# (freq_sampler.sh -> freqcheck.py) shows any frequency collapse, and a collapse ends benchmarking.
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set -u
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export MSYS_NO_PATHCONV=1
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SER="${SER:-HA27Q3LQ}"
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HERE="$(cd "$(dirname "$0")" && pwd)"
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SERVICES="${BENCH_STOP_SERVICES:-thermal-engine perf2-hal-1-0 vendor.perfservice performance hyperschedule_hal_service}"
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MARK=/data/local/tmp/p15-bench-session
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MP=/sys/kernel/msm_performance/parameters
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su_sh() { adb -s "$SER" shell "su -c '$1'"; }
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case "${1:-status}" in
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start)
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su_sh "if [ ! -f $MARK ]; then for s in $SERVICES; do echo svc \$s \$(getprop init.svc.\$s); done > $MARK; echo maxreq \$(cat $MP/cpu_max_freq) >> $MARK; echo minreq \$(cat $MP/cpu_min_freq) >> $MARK; fi; cat $MARK"
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su_sh "for s in $SERVICES; do setprop ctl.stop \$s; done"
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sleep 2
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su_sh "echo \"0:4294967295 1:4294967295 2:4294967295 3:4294967295 4:4294967295 5:4294967295 6:4294967295 7:4294967295\" > $MP/cpu_max_freq; echo \"0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0\" > $MP/cpu_min_freq"
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SER=$SER bash "$HERE/pin_clocks.sh" pin
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"$0" status ;;
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stop)
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su_sh "if [ -f $MARK ]; then grep \"^svc \" $MARK | while read k s st; do [ \"\$st\" = running ] && setprop ctl.start \$s; done; else for s in $SERVICES; do setprop ctl.start \$s; done; fi"
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sleep 3
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bad=$(su_sh "if [ -f $MARK ]; then grep \"^svc \" $MARK | while read k s st; do [ \"\$st\" = running ] && [ \"\$(getprop init.svc.\$s)\" != running ] && echo \$s; done; fi" | tr -d '\r')
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if [ -n "$bad" ]; then echo "bench_session: NOT RESTORED: $bad" >&2; exit 1; fi
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su_sh "rm -f $MARK"
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"$0" status ;;
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status)
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su_sh "for s in $SERVICES; do echo \$s=\$(getprop init.svc.\$s); done | tr '\n' ' '; echo; echo maxreq \$(cat $MP/cpu_max_freq)" ;;
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esac
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