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List:       openjdk-hotspot-runtime-dev
Subject:    Integrated: JDK-8290868: NMT: MallocSiteTable statistics improvements
From:       Thomas Stuefe <stuefe () openjdk ! org>
Date:       2022-07-30 13:07:00
Message-ID: RsaQdb-mYSvHAV_2zYqI-Nm_eUZBWsbtQm7nlm-1Aws=.3986c3c0-b39b-4ce3-9330-e15b27cc2ca0 () github ! com
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On Fri, 22 Jul 2022 09:43:19 GMT, Thomas Stuefe <stuefe@openjdk.org> wrote:

> Smallish improvement/simplification for the MallocSiteTable statistics.
> 
> Instead of printing the full chain length distribution, which is not very helpful, \
> we now print number of empty slots, medium bucket length, and max. bucket chain \
> length. As a bonus, coding gets simpler. 
> Looks like this now:
> 
> thomas@starfish:~$ jcmd spring-petclinic VM.native_memory statistics
> 70863:
> Native Memory Tracking Statistics:
> ...
> 
> Bucket chain length distribution:
> unused:  1
> longest: 15
> median:  6

This pull request has now been integrated.

Changeset: 32d410a1
Author:    Thomas Stuefe <stuefe@openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/32d410a1af65f12f5b27f3685e1e803d876816e8
                
Stats:     41 lines in 1 file changed: 10 ins; 23 del; 8 mod

8290868: NMT: MallocSiteTable statistics improvements

Reviewed-by: zgu, lucy

-------------

PR: https://git.openjdk.org/jdk/pull/9611


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