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120 lines
2.8 KiB
120 lines
2.8 KiB
4 years ago
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# This script is to be run on the KVM guest
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set -ex
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mkdir /waffle
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mount -t virtiofs waffle-tag /waffle
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mkdir /apitrace
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mount -t virtiofs apitrace-tag /apitrace
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mkdir /traces-db
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mount -t virtiofs traces-db-tag /traces-db
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mkdir /perfetto
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mount -t virtiofs perfetto-tag /perfetto
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echo 3 > /proc/sys/kernel/printk
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export PATH="/apitrace/build:$PATH"
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export PATH="/waffle/build/bin:$PATH"
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export LD_LIBRARY_PATH="/waffle/build/lib:$LD_LIBRARY_PATH"
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export LD_LIBRARY_PATH="/usr/local/lib:$LD_LIBRARY_PATH"
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export EGL_PLATFORM="surfaceless"
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export WAFFLE_PLATFORM="surfaceless_egl"
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export MESA_GL_VERSION_OVERRIDE="4.5"
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export DISPLAY=
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# Comment out any other sources, so it only syncs to the host via PTP
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sed -i '/pool/s/^/#/' /etc/chrony/chrony.conf
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echo refclock PHC /dev/ptp0 poll 1 dpoll -2 offset 0 >> /etc/chrony/chrony.conf
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echo cmdport 0 >> /etc/chrony/chrony.conf
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echo bindcmdaddress / >> /etc/chrony/chrony.conf
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time chronyd -q # Initial synchronization, will take some time
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chronyd # Keep clocks in sync
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# Get trace cached
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trace_base=$(cat /traces-db/current_trace)
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if [ "x$trace_base" = "x" ]; then
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echo "No trace given, bailing out"
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exit 1
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fi
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command=$(cat /traces-db/command)
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echo command=$command
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WAIT=
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RECORD=
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benchmark_loops=0
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perfetto_loops=10
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for c in $command; do
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val=(${c//=/ })
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case "${val[0]}" in
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benchmark)
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benchmark_loops=${val[1]}
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;;
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perfetto)
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perfetto_loops=${val[1]}
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;;
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wait-after-frame)
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WAIT="--wait-after-frame"
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;;
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record-frame)
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RECORD="--snapshot"
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;;
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esac
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done
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if [ -e /traces-db/wait_after_frame ]; then
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WAIT=-wait-after-frame
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fi
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trace="/traces-db/${trace_base}.trace"
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datadir="/traces-db/${trace_base}-out"
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guest_perf="$datadir/${trace_base}-guest.perfetto"
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cat "$trace" > /dev/null
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# To keep Perfetto happy
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echo 0 > /sys/kernel/debug/tracing/tracing_on
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echo nop > /sys/kernel/debug/tracing/current_tracer
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echo "Guest:"
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wflinfo --platform surfaceless_egl --api gles2 -v
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/perfetto/out/dist/traced &
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/perfetto/out/dist/traced_probes &
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sleep 1
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/perfetto/out/dist/perfetto --txt -c /usr/local/perfetto-guest.cfg -o "$guest_perf" --detach=mykey
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sleep 1
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# The first virtio-gpu event has to be captured in the guest, so we correlate correctly to the host event
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echo "Replaying for Perfetto:"
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LOOP=
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if [ "x$perfetto_loops" != "x" -a "x$perfetto_loops" != "x0" ]; then
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LOOP="--loop=$perfetto_loops"
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fi
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eglretrace --benchmark --singlethread $LOOP $WAIT --headless "$trace"
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sleep 1
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/perfetto/out/dist/perfetto --attach=mykey --stop
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chmod a+rw "$guest_perf"
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if [ "x$benchmark_loops" != "x0" ]; then
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echo "Measuring rendering times:"
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eglretrace --benchmark --loop=$benchmark_loops --headless "$trace"
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fi
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if [ "x$RECORD" != "x" ]; then
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eglretrace --snapshot frame --snapshot-prefix=${datadir}/ --headless "$trace"
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fi
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