Date: Tue, 15 Dec 2009 23:39:16 +0100 From: Wiktor Niesiobedzki <bsd@w.evip.pl> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-fs <freebsd-fs@freebsd.org>, freebsd-hackers <freebsd-hackers@freebsd.org> Subject: Re: ZFS, compression, system load, pauses (livelocks?) Message-ID: <2ae8edf30912151439h799277a0ofee13f5aecc55f00@mail.gmail.com> In-Reply-To: <9bbcef730912151343p729b6d29w97e56bab96f264f9@mail.gmail.com> References: <hg8015$999$1@ger.gmane.org> <2ae8edf30912151157t53267adek85af80b1e31fb4b@mail.gmail.com> <9bbcef730912151343p729b6d29w97e56bab96f264f9@mail.gmail.com>
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2009/12/15 Ivan Voras <ivoras@freebsd.org>: > I have tried before reducing priority of ZFS taskqueues but only to > PRIBIO, not below it - not much effect wrt "pauses". I was testing with getting the thread as low priority as PUSER (with original pjd@ patch) and it was actually performing better than the current solution, though I found that quite risky. Cheers, Wiktor Niesiob=C4=99dzki
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