From: Valdis.Kletnieks@vt.edu
To: Bob Liu <bob.liu@oracle.com>
Cc: Martin Steigerwald <Martin@lichtvoll.de>,
Seth Jennings <sjenning@linux.vnet.ibm.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: zswap: How to determine whether it is compressing swap pages?
Date: Thu, 18 Jul 2013 13:36:49 -0400 [thread overview]
Message-ID: <4360.1374169009@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Thu, 18 Jul 2013 20:43:40 +0800." <51E7E2FC.3070807@oracle.com>
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On Thu, 18 Jul 2013 20:43:40 +0800, Bob Liu said:
> Could you make some test by kernel compiling? Something like kernbench.
> During my testing, I found that the swap ins/outs operations reduced but
> the kernel compile time didn't reduce accordingly.
If your kernel source tree is cache-cold, the swap in/out activity is
probably hidden and ahrd to notice among all the disk I/O to read the source in.
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prev parent reply other threads:[~2013-07-18 17:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-17 10:04 zswap: How to determine whether it is compressing swap pages? Martin Steigerwald
2013-07-17 10:42 ` Bob Liu
2013-07-17 11:41 ` Martin Steigerwald
[not found] ` <20130717143834.GA4379@variantweb.net>
2013-07-17 19:38 ` Martin Steigerwald
2013-07-18 12:43 ` Bob Liu
2013-07-18 17:36 ` Valdis.Kletnieks [this message]
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