Http trace context benchmark #815
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DotSpy
requested review from
arminru,
bogdandrutu,
carlosalberto,
jkwatson,
pavolloffay,
songy23 and
tylerbenson
as code owners
Codecov Report
@@ Coverage Diff @@
## master #815 +/- ##
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+ Coverage 78.98% 80.71% +1.73%
- Complexity 789 820 +31
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Files 105 108 +3
Lines 2845 2899 +54
Branches 273 265 -8
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+ Hits 2247 2340 +93
+ Misses 494 452 -42
- Partials 104 107 +3
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This looks like a good start. Can you publish the current benchmarks as a part of the PR description, along with what hardware you're running on? |
api/src/jmh/java/io/opentelemetry/trace/propagation/HttpTraceContextExtractBenchmark.java
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This is my first approach for jmh, after we will agree on current state of tests i will run it under my home laptop |
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@jkwatson @carlosalberto btw |
Yes, but let's add them as a follow-on PR. Benchmarks for parsing of trace-context headers would be extremely useful. |
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Please rebase :) |
api/src/jmh/java/io/opentelemetry/trace/propagation/HttpTraceContextInjectBenchmark.java
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Windows 10 Pro @jkwatson i think we should have some hardware to run performance tests on, also i have issue with encoding on windows dunno how to solve for now
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First: Results are very hard to read, in opencensus I used jmhreport https:/census-instrumentation/opencensus-java/blob/master/build.gradle#L17 to expose things in a nicer format. Second: I am very confused about the fact that we want to benchmark with different inputs, I think we should just create N random TraceParent (don't measure this) then extract all of them. |
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Thanks for response @bogdandrutu, i will add this plugin. After i will show u result with it |
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@DotSpy my point is that because we have a lot of combinations span_id/trace_id the benchmarks run only 10 time each, so the numbers are not very stable/relevant. So my suggestion was to actually have maybe just one span_id/trace_id combination and have that benchmark run more times to be able to determine the average better. |
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@bogdandrutu i just pre-generated a bunch of random trace/span ids as we discuss in comments with @jkwatson and @carlosalberto, i think it will be good for now just increase iterations to 50 per pair of span-id\trace-id. |
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@DotSpy I am still confused why we need to have only 50 iterations, in my previous life I used to have 100K iterations to see something useful (like percentile, etc.). I would strongly suggest to have more than 10K anyway. I think what we can do is to build a vector of trace-parents with these ideas and do something like: |
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@bogdandrutu if i got u right i did it with iterations\params, should i provide now results via jmhReport plugin? |
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@DotSpy nice, this looks how I was thinking :). Some new results would be very good :) |
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CI will fail until #866 merged |
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Please rerun CI and if all ok it can be merged |
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Did you rebase? |
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@bogdandrutu sry, now seems ok |
Extract and inject benchmarks for http context #792