Gentoo Archives: gentoo-user

From: Grant <emailgrant@×××××.com>
To: Gentoo mailing list <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] ZFS
Date: Thu, 19 Sep 2013 04:47:43
Message-Id: CAN0CFw2L52jSyarbzqPAbD_vNUmg48xfV7hAZo79+U4HN3CZ+w@mail.gmail.com
In Reply to: Re: [gentoo-user] ZFS by Volker Armin Hemmann
1 >>> turn off readahead. ZFS' own readahead and the kernel's clash - badly.
2 >>> Turn off kernel's readahead for a visible performance boon.
3 >> You are probably not talking about ZFS readahead but about the ARC.
4 >
5 > which does prefetching. So yes.
6
7 I'm taking notes on this so I want to clarify, when using ZFS,
8 readahead in the kernel should be disabled by using blockdev to set it
9 to 8?
10
11 - Grant

Replies

Subject Author
Re: [gentoo-user] ZFS Volker Armin Hemmann <volkerarmin@××××××××××.com>