#asyncprofiler search results
#JFR or #AsyncProfiler? No need to choose - they can work together to produce a single integrated recording.
#AsyncProfiler's flamegraph of Virtual Threads - check it out and zoom in! github.com/petrbouda/virt…
inlining/interpreted/compiled/native frames are landing on @AndreiPangin #asyncprofiler github.com/jvm-profiling-… Bye bye perf map...we've been good friends for many years...
Async-Profiler is great. Hope that the data provided is correct. Will see and check what can be done to avoid the expensive cache misses. We already squeezed the CPU lemon a lot... #xlt #asyncprofiler
How do profilers like #asyncprofiler work? How to write your own? Get your intense coding hat on because this brand new series by @parttimen3rd @SweetSapMachine tries to write a tiny sampling-based #profiler from scratch! foojay.io/today/writing-… #foojaytip
#AsyncProfiler 2.0 has been finally released! Enjoy new fast Flame Graphs, JFR v2 compatible output, and ability to profile cpu+allocations+locks at the same time. github.com/jvm-profiling-…
We just started :-) Use this link to view the live stream and participate: youtube.com/watch?v=TDpbt4… #Profilers #AsyncProfiler
Where's String::indexOf on #asyncprofiler flames? There is nothing AP can do here to help (BCI is just wrong) and Arrays::fill has the same "issue", but is nice to see such honesty, kudos to @AndreiPangin (again). Same feelings for @RichardWarburto #honestprofiler ;)
Let me second Java release with a new release of #AsyncProfiler. And yes, it supports JDK 14! github.com/jvm-profiling-…
Interesting #asyncprofiler addition github.com/jvm-profiling-…
github.com/async-profiler… Classify option for #asyncprofiler nice one :)
Interesting changes on #asyncprofiler to make possible profile in containers github.com/jvm-profiling-…
New blog post: Why JVM modern profilers are still safepoint biased? #AsyncProfiler #JFR #HonestProfiler #AsyncGetCallTrace #DebugNonSafepoint jpbempel.github.io/2022/06/22/deb…
github.com/async-profiler… Nice change on wall clock profiling for #asyncprofiler
github.com
#1007: Optimize wall clock profiling by apangin · Pull Request #1008 · async-profiler/async-profiler
Description Optimize wall clock profiling by skipping redundant samples when we know thread CPU time has not changed since the last sample. Related issues Resolves #1007. Motivation and context Mak...
Another day another time when #asyncprofiler discovered allocations that can be removed: github.com/netty/netty-in… #netty #quic
github.com/async-profiler… Nice change on wall clock profiling for #asyncprofiler
github.com
#1007: Optimize wall clock profiling by apangin · Pull Request #1008 · async-profiler/async-profiler
Description Optimize wall clock profiling by skipping redundant samples when we know thread CPU time has not changed since the last sample. Related issues Resolves #1007. Motivation and context Mak...
To be fair, the @AndreiPangin #asyncprofiler profiler has been key to help troubleshooting this: - modifying the malloc branch to capture "live" set in malloc - with -e mprotect to check RSS increase on C2 arenas - with Java method profiling
Yep, it was part of an investigation we performed on @QuarkusIO due to an increased RSS usage reported at github.com/quarkusio/quar… Without that new tool, knowing what's going on would have been a mess (forcing me to add logs to the arena allocation on C2 :/)
github.com
Malloc Arena RSS increase between 2.16.11.Final and 3.x/main · Issue #36204 · quarkusio/quarkus
Description Environment: java version "17.0.7" 2023-04-18 LTS Java(TM) SE Runtime Environment (build 17.0.7+8-LTS-224) Java HotSpot(TM) 64-Bit Server VM (build 17.0.7+8-LTS-224, mixed mod...
That would be nice to report it on @AndreiPangin #asyncprofiler (unless it does it already) - I had no xp of getting it full, but in prod is where horrible things usually happen...
One note re #asyncprofiler : first get the number of total events and real time duration to find the appropriate interval to be used in the profiler, or it risk to receive Billions (many!) of events (2/2)
Which means that the primary bottleneck is elsewhere or is there, but something in ByteBuffer::getLong isn't good enough (in Netty we use Unsafe without bound checks, under the hood); profiling with #asyncprofiler with line of code granularity is the way to go ;P
I cannot really thanks enough @AndreiPangin for #asyncprofiler candies he put into it, for example github.com/async-profiler…
[TR] #java #docker #asyncprofiler ile ilgili random bir yayin. Ilgilenen uykusuzlar gelebilir :) twitch.tv/huseyinbabal
Ideas for #netty , someone want give it a shot? github.com/netty/netty/is… This can make it an easy integration with any JFR to flamegraphs tool (#asyncprofiler converter too)
github.com/async-profiler… Classify option for #asyncprofiler nice one :)
I am staring at #asyncprofiler and @javamissionctrl here :)
How do profilers like #asyncprofiler work? How to write your own? Get your intense coding hat on because this brand new series by @parttimen3rd @SweetSapMachine tries to write a tiny sampling-based #profiler from scratch! foojay.io/today/writing-… #foojaytip
"Journey to a N-fold improvement due to a stealthy scalability issue" by @forked_franz buff.ly/3BdweQH #java #jvm #asyncprofiler
A profiler that can help in detecting memory heap leaks - #AsyncProfiler #PerformanceEngineering #CloudCostOptimization lnkd.in/d2zFDfq9
Tired of dealing with #AsyncProfiler binaries just to embed the profiler into your library: Try github.com/parttimenerd/a… which does nothing more than that, built from the official binaries. AsyncProfiler is just an "AsyncProfilerLoader.load()" away.
#asyncprofiler combines the same events with JVM stacktraces to profile Java applications, so you're able to see which Java method had all those cache misses.
AsyncGrtCallTrace, last time I have checked, reports vthreads stack traces starting from who resume them (in case they were previously parked) - at least according to #asyncprofiler and TBH I like it (1/2)
#AsyncProfiler's flamegraph of Virtual Threads - check it out and zoom in! github.com/petrbouda/virt…
How #Hazelcast optimized its #SQL engine by using #AsyncProfiler & #FlameGraphs. #PerformanceEngineering lnkd.in/dy-EwpHW
My journey to understand different #java profilers and how the lie continues 🚀 🤯 Important checkpoints to understand - safepoint bias, #asyncprofiler (AsyncGetCallTrace API), performance counters, now digging into "skid". 📚 Links that I found most useful so far 🧵
That's why I love the honesty of #asyncprofiler that allow to disable its stack recovery techniques and just report what's been collected, broken too
#JFR or #AsyncProfiler? No need to choose - they can work together to produce a single integrated recording.
inlining/interpreted/compiled/native frames are landing on @AndreiPangin #asyncprofiler github.com/jvm-profiling-… Bye bye perf map...we've been good friends for many years...
How do profilers like #asyncprofiler work? How to write your own? Get your intense coding hat on because this brand new series by @parttimen3rd @SweetSapMachine tries to write a tiny sampling-based #profiler from scratch! foojay.io/today/writing-… #foojaytip
#AsyncProfiler's flamegraph of Virtual Threads - check it out and zoom in! github.com/petrbouda/virt…
Async-Profiler is great. Hope that the data provided is correct. Will see and check what can be done to avoid the expensive cache misses. We already squeezed the CPU lemon a lot... #xlt #asyncprofiler
We just started :-) Use this link to view the live stream and participate: youtube.com/watch?v=TDpbt4… #Profilers #AsyncProfiler
Where's String::indexOf on #asyncprofiler flames? There is nothing AP can do here to help (BCI is just wrong) and Arrays::fill has the same "issue", but is nice to see such honesty, kudos to @AndreiPangin (again). Same feelings for @RichardWarburto #honestprofiler ;)
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