Integrated: JDK-8282382: Report glibc malloc tunables in error reports

[Thomas Stuefe]

On Fri, 25 Feb 2022 07:33:55 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> On Linux/glibc platforms, the hs-err file should report the malloc tunables, or at least MALLOC_ARENA_MAX, since that one can have a significant effect on footprint or malloc contention for a VM.
> 
> This patch adds this printout as a one-liner into hs-err files and jcmd VM.info reports:
> 
> 
> Process Memory:                                                                    
> ...
> glibc malloc tunables: MALLOC_PERTURB_=40, MALLOC_ARENA_MAX=1
> 
> 
> If the tunables are default, we print `glibc malloc tunables: (default)`.
> 
> 
> Thanks, Thomas

This pull request has now been integrated.

Changeset: bc42e7cb
Author:    Thomas Stuefe <stuefe at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/bc42e7cbbfd586308338bfdf535c4fcab0cdbc48
Stats:     40 lines in 1 file changed: 33 ins; 0 del; 7 mod

8282382: Report glibc malloc tunables in error reports

Reviewed-by: zgu, dholmes

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

PR: https://git.openjdk.java.net/jdk/pull/7620