linux-kernel - Re: [PATCH] rcu/torture: Improve badness extraction from console logs

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Date:   Sat, 2 Sep 2023 18:38:11 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Joel Fernandes <joel@...lfernandes.org>
Cc:     linux-kernel@...r.kernel.org,
        Josh Triplett <josh@...htriplett.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Shuah Khan <shuah@...nel.org>, rcu@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH] rcu/torture: Improve badness extraction from console logs

On Sat, Sep 02, 2023 at 08:10:13PM -0400, Joel Fernandes wrote:
> On Sat, Sep 2, 2023 at 3:24 PM Paul E. McKenney <paulmck@...nel.org> wrote:
> >
> [...]
> > > > Either way, what I don't want is many megabytes of splats from console.log
> > > > duplicated into console.log.diags, especially in those (admittedly sad)
> > > > cases where the console.log file is the largest file in the results
> > > > directory.  Are you really going to be reading carefully after (say)
> > > > the fifth splat?  ;-)
> > >
> > > I could limit it to just the first 5, with the existing unlimited
> > > summary at the top.
> >
> > How about limiting the existing summary to (say) 10 lines?  I do not
> > recall every caring about more than that.  The only reason that I did
> > not ever limit it myself is that the summary is unlikely to be more than
> > a few percent of the full console.log.
> >
> > > Let me know if that works or does not work for you. :-)
> >
> > I do believe that we might be converging.  ;-)
> 
> Ok, so 10 lines of summary (similar to existing), and 10 detailed
> splats below that :-).  If that's not Ok, let me know. Otherwise I
> will send the new patch soon. Thanks!

That works!

						Thanx, Paul