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

[Greg Thelen]

On Sun, Apr 15, 2018 at 1:27 AM Dave Anderson <anderson at redhat.com> wrote:

> ----- Original Message -----
> > 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.

> Yeah, since it looks like it would require a "force push" with an amended
> message (which github strongly discourages because it screws up people
who've
> cloned the repo), I'm not going to do that.

> But for what it's worth, I will change it in the changelog that gets
> mailed out in the crash-7.2.2 ANNOUNCE message on this mailing list,
> and it will also will be seen in the updated version of
> http://people.redhat.com/anderson/crash.changelog.html.

Makes sense.  Thanks.