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Message-ID: <521871FD.8000700@mglug.de>
Date: Sat, 24 Aug 2013 10:42:37 +0200
From: Oliver Rath <rath@mglug.de>
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Subject: [linux-lvm] howto speed-up thinpool-devices?
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To: LVM general discussion and development <linux-lvm@redhat.com>

Hi list,

Im using thinpool-devices (and snapshots, too). I know, thinpool-devices
arent the fastest one, but maybe there could make more use of read (and
maybe write) caching. In my test-system are 32GB of ram, but there is a
max use of cache about <1GB, not more, by heavily use of these devices.

Is it possible to speed up the reading with growing up the cache use?
The /sys/block/dm-X/.. directories have lots of parameters, but Im not
experienced for that. Maybe Im looking@the wrong place and modifying
kernel parameters (scheduler etc.) are the better way?

Tfh!
Oliver