From: Jesper Dangaard Brouer <brouer@redhat.com>
To: linux-mm <linux-mm@kvack.org>
Cc: brouer@redhat.com
Subject: Memory exhaustion testing?
Date: Thu, 12 Nov 2015 21:55:31 +0100 [thread overview]
Message-ID: <20151112215531.69ccec19@redhat.com> (raw)
Hi MM-people,
How do you/we test the error paths when the system runs out of memory?
What kind of tools do you use?
or Any tricks to provoke this?
For testing my recent change to the SLUB allocator, I've implemented a
crude kernel module that tries to allocate all memory, so I can test the
error code-path in kmem_cache_alloc_bulk.
see:
https://github.com/netoptimizer/prototype-kernel/blob/master/kernel/mm/slab_bulk_test04_exhaust_mem.c
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
Author of http://www.iptv-analyzer.org
LinkedIn: http://www.linkedin.com/in/brouer
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next reply other threads:[~2015-11-12 20:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-12 20:55 Jesper Dangaard Brouer [this message]
2015-11-13 22:54 ` David Rientjes
2015-11-16 14:24 ` Jesper Dangaard Brouer
2015-11-17 13:21 ` Jesper Dangaard Brouer
2015-11-19 20:40 ` David Rientjes
2015-11-20 13:09 ` Jesper Dangaard Brouer
2015-11-20 23:23 ` David Rientjes
2015-11-20 23:28 ` Andrew Morton
2015-11-14 8:23 ` Tetsuo Handa
2015-11-16 14:43 ` Jesper Dangaard Brouer
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