Bigwen-1 commented on issue #7671: URL: https://github.com/apache/apisix/issues/7671#issuecomment-1229873271
I tried to analyze the transcoding performance with the flame graph, but perf always failed to obtain stack index. Open SVG display: ERROR: No Valid Input provided to flamegraph.pl. Can you give me a hand? I operate as follows: root@xxali-ecs-xxx-xx-xx-xx:/data/server/FlameGraph/FlameGraph# ls aix-perf.pl files.pl record-test.sh stackcollapse-jstack.pl stackcollapse-vsprof.pl demos flamegraph.pl stackcollapse-aix.pl stackcollapse-ljp.awk stackcollapse-vtune.pl dev jmaps stackcollapse-bpftrace.pl stackcollapse-perf.pl stackcollapse-wcp.pl difffolded.pl perf.data stackcollapse-chrome-tracing.py stackcollapse-perf-sched.awk stackcollapse-xdebug.php docs perf.data.old stackcollapse-elfutils.pl stackcollapse.pl test example-dtrace-stacks.txt pkgsplit-perf.pl stackcollapse-gdb.pl stackcollapse-pmc.pl test.sh example-dtrace.svg pmCount.svg stackcollapse-go.pl stackcollapse-recursive.pl example-perf-stacks.txt.gz range-perf.pl stackcollapse-instruments.pl stackcollapse-sample.awk example-perf.svg README.md stackcollapse-java-exceptions.pl stackcollapse-stap.pl root@xxali-ecs-xxx-xx-xx-xx:/data/server/FlameGraph/FlameGraph# perf record -F 99 -a -g -p 10853 -- sleep 30 Warning: PID/TID switch overriding SYSTEM[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.012 MB perf.data ] root@xxali-ecs-xxx-xx-xx-xx:/data/server/FlameGraph/FlameGraph# perf script > out.perf root@xxali-ecs-xxx-xx-xx-xx:/data/server/FlameGraph/FlameGraph# ./stackcollapse-perf.pl out.perf > out.folded root@xxali-ecs-xxx-xx-xx-xx:/data/server/FlameGraph/FlameGraph# ./flamegraph.pl out.folded > pmCount.svg ERROR: No stack counts found -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
