From: Andrew Morton <akpm@zip.com.au>
To: Rik van Riel <riel@conectiva.com.br>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: swapout bandwidth
Date: Wed, 31 Jul 2002 01:15:09 -0700 [thread overview]
Message-ID: <3D479C8D.1DAB44D1@zip.com.au> (raw)
Seems poor. On mem=512M, with 30 megs/sec of swap
bandwidth, a
memset(malloc(800megs))
takes 21 seconds, and 16 on 2.5.26.
There are big latencies during this too (vmstat freezes for
many seconds). But I seem to have fixed that in the
pagemap_lru_lock patches. Not sure how though ;)
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next reply other threads:[~2002-07-31 8:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-31 8:15 Andrew Morton [this message]
2002-07-31 13:01 ` swapout bandwidth Rik van Riel
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