From mboxrd@z Thu Jan 1 00:00:00 1970 From: Henning Rohlfs Subject: Re: Abysmal Performance Date: Tue, 21 Jun 2011 11:26:19 +0200 Message-ID: References: <7da312412980843ba746e4e8809060f8@localhost> <20110621080058.GA29265@attic.humilis.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed To: Return-path: In-Reply-To: <20110621080058.GA29265@attic.humilis.net> List-ID: On Tue, 21 Jun 2011 10:00:59 +0200, Sander wrote: > Henning Rohlfs wrote (ao): >> - space_cache was enabled, but it seemed to make the problem worse. >> It's no longer in the mount options. > > space_cache is a one time mount option which enabled space_cache. Not > supplying it anymore as a mount option has no effect (dmesg | grep > btrfs). I'm sure that after the first reboot after removing the flag from the mount options, the system was faster for a while. That must have been a coincidence (or just an error on my part). Anyway, I rebooted with clear_cache as mount option and there was no improvement either. Thanks for pointing this out, Henning