linkerd2-proxy/profiling/profiling-perf.sh

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#!/bin/bash -e
set -o nounset
set -o pipefail
PROFDIR=${0%/*}
cd "$PROFDIR"
source profiling-util.sh
if [[ "$OSTYPE" == "darwin"* ]]; then
err 'you are trying to run perf on a mac' "This is not guaranteed to work in Docker for Mac.
If you're lucky, it might, so I will continue running the test."
else
PARANOIA=$(cat /proc/sys/kernel/perf_event_paranoid)
if [ "$PARANOIA" -eq -1 ]; then
err 'you may not have permission to collect stats' "Consider tweaking /proc/sys/kernel/perf_event_paranoid:
-1 - Not paranoid at all
0 - Disallow raw tracepoint access for unpriv
1 - Disallow cpu events for unpriv
2 - Disallow kernel profiling for unpriv
You can adjust this value with:
echo -1 | sudo tee /proc/sys/kernel/perf_event_paranoid
Current value is $PARANOIA"
exit 1
fi
fi
status 'Starting' "perf profile ${RUN_NAME}"
# Cleanup background processes when script is canceled
trap '{ teardown; }' EXIT
# Summary table header
echo 'Test, target req/s, req len, branch, p999 latency (ms), GBit/s' > "$OUT_DIR/summary.txt"
export PROXY_PERF=1;
if [ "$TCP" -eq 1 ]; then
MODE=TCP DIRECTION=outbound NAME=tcpoutbound_bench PROXY_PORT=$PROXY_PORT_OUTBOUND SERVER_PORT=5001 single_benchmark_run
MODE=TCP DIRECTION=inbound NAME=tcpinbound_bench PROXY_PORT=$PROXY_PORT_INBOUND SERVER_PORT=5001 single_benchmark_run
fi
if [ "$HTTP" -eq 1 ]; then
MODE=HTTP DIRECTION=outbound NAME=http1outbound_bench PROXY_PORT=$PROXY_PORT_OUTBOUND SERVER_PORT=8080 single_benchmark_run
MODE=HTTP DIRECTION=inbound NAME=http1inbound_bench PROXY_PORT=$PROXY_PORT_INBOUND SERVER_PORT=8080 single_benchmark_run
fi
if [ "$GRPC" -eq 1 ]; then
MODE=gRPC DIRECTION=outbound NAME=grpcoutbound_bench PROXY_PORT=$PROXY_PORT_OUTBOUND SERVER_PORT=8079 single_benchmark_run
MODE=gRPC DIRECTION=inbound NAME=grpcinbound_bench PROXY_PORT=$PROXY_PORT_INBOUND SERVER_PORT=8079 single_benchmark_run
fi
teardown
status 'Completed' "Log files (display with 'head -vn-0 $OUT_DIR/.txt $OUT_DIR/*.json | less'):"
ls "$OUT_DIR"/*.txt "$OUT_DIR"/*.json
echo SUMMARY:
cat "$OUT_DIR"/summary.txt
status 'Completed' 'inspect flamegraphs in browser:'
ls "$OUT_DIR"/*.svg