[systemd-devel] Significant performance loss caused by commit a65f06b: journal: return -ECHILD after a fork

[Tomasz Torcz]

On Tue, Jul 11, 2017 at 05:20:10PM +0200, Lennart Poettering wrote:
> On Tue, 11.07.17 16:55, Tomasz Torcz (tomek at pipebreaker.pl) wrote:
> > > Forgot to mention:
> > > 
> > > $ rpm -qa glibc
> > > glibc-2.24-4.fc25.x86_64
> > > 
> > > Apparently, this regressed between this version and
> > > glibc-2.24-9.fc25.x86_64 hence.
> > > 
> > 
> >   From glibc changelog:
> > 
> > * Wed Jun 07 2017 Arjun Shankar <arjun.is at lostca.se> - 2.24-6
> > - Auto-sync with upstream release/2.24/master,
> >   commit 7b60553e360731338631ccdda71590ac5deca137, fixing:
> > - Remove the PID cache  (#1443976)
> 
> I commented on that bug now. It doesn#t really have a proper
> explanation, all it says is that "The glibc PID cache negatively
> interacts with setting up containers and namespaces."...

  Upstream commit has longer rationale:
http://repo.or.cz/glibc.git/commit/c579f48edba88380635ab98cb612030e3ed8691e

But I'm not competent enough to judge t.


-- 
Tomasz Torcz                        To co nierealne -- tutaj jest normalne.
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