[Crash-utility] [PATCH 0/4] speed up handling of dumps with many tasks

Greg Thelen gthelen at google.com
Wed Apr 11 17:27:32 UTC 2018


On Tue, Apr 10, 2018 at 8:20 AM Dave Anderson <anderson at redhat.com> wrote:

> ----- Original Message -----
> > This series decreases crash startup and 'ps' processing time when
handling dumps
> > with many tasks.  Prior to the series a 1M task dump took 45m to load
and 45m
> > more to run ps.  Once patched, startup+ps time drops below 40 seconds.

> Thanks Greg -- the patch is queued for crash-7.2.2:


https://github.com/crash-utility/crash/commit/c1a8d0c968a256fc4617524aedb59155977907ec

Thanks Dave.  I tested the c1a8d0 github patch and the performance is good.

It might be too late to fix the commit log, but the patch contains all 4 of
my original patches, so it reduces startup+ps time 90m=>40s (rather than
45m=>40s).   Not a big deal though.




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