From: Andi Kleen <ak@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>,
linux-mm@kvack.org, Dave Young <dyoung@redhat.com>
Subject: Re: [PATCH] Add a test program for variable page sizes in mmap/shmget v2
Date: Thu, 8 Nov 2012 16:38:18 -0800 [thread overview]
Message-ID: <20121109003818.GC2726@tassilo.jf.intel.com> (raw)
In-Reply-To: <20121108140938.357228e0.akpm@linux-foundation.org>
> > My test system didn't hang FWIW.
>
> It wasn't thuge-gen which hung. It happened really early in
> run_vmtests, perhaps setting nr_hugepages.
I mean it didn't hang for the full script.
Ah this causes compaction so if you have a lot of fragmented memory
it may run for a lot time with very long latencies, but inhibiting
page faults of other processes.
It probably would have recovered.
it's a general problem that others are complaining about too.
-Andi
--
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next prev parent reply other threads:[~2012-11-09 0:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-08 21:01 [PATCH] Add a test program for variable page sizes in mmap/shmget v2 Andi Kleen
2012-11-08 21:29 ` Andrew Morton
2012-11-08 22:01 ` Andi Kleen
2012-11-08 22:09 ` Andrew Morton
2012-11-09 0:38 ` Andi Kleen [this message]
2012-11-12 9:35 ` Dave Young
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