[GitHub] [apisix] Bigwen-1 commented on issue #7671: help request: Can the performance of grpc-transcode be improved? Or analysis?

[GitBox <gi...@apache.org>]

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
   


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