From: Ulrich Weigand <weigand@i1.informatik.uni-erlangen.de>
To: drow@false.org (Daniel Jacobowitz)
Cc: weigand@i1.informatik.uni-erlangen.de (Ulrich Weigand),
gdb-patches@sources.redhat.com
Subject: Re: [PATCH] Fix manythreads test case on s390
Date: Fri, 23 Apr 2004 19:25:00 -0000 [thread overview]
Message-ID: <200404231925.VAA27694@faui1d.informatik.uni-erlangen.de> (raw)
In-Reply-To: <20040423181833.GA15513@nevyn.them.org> from "Daniel Jacobowitz" at Apr 23, 2004 02:18:33 PM
Daniel Jacobowitz wrote:
> None of the threads run to completion in time to reuse their stack
> space? I'm surprised by that (though it's certainly a valid outcome,
> it's unlike how NPTL behaves elsewhere).
On my system the 127th pthread_create reproducibly fails, which
is consistent with no thread stack being reused early.
Maybe it's an SMP effect (one CPU is quickly running all the
pthread_create's, while the others are executing the thread
functions, which may be slow due to printf ...)?
On the other hand, it may also be the case that running in a
virtualized environment exaggerates race windows; we've seen
plenty of examples for this.
Bye,
Ulrich
--
Dr. Ulrich Weigand
weigand@informatik.uni-erlangen.de
next prev parent reply other threads:[~2004-04-23 19:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-23 16:33 Ulrich Weigand
2004-04-23 18:18 ` Daniel Jacobowitz
2004-04-23 19:25 ` Ulrich Weigand [this message]
2004-04-24 0:03 ` Andrew Cagney
2004-04-23 19:04 ` Jeff Johnston
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