Date: Mon, 18 Jan 2010 08:29:48 -0800 From: Norbert Papke <npapke@acm.org> To: freebsd-stable@freebsd.org Subject: Re: ZFS performance degradation over time Message-ID: <201001180829.48126.npapke@acm.org> In-Reply-To: <7346c5c61001171521w1ca4738w98e8fcca24643cda@mail.gmail.com> References: <7346c5c61001030842r7dc76199y51e4c1c90a3eea6e@mail.gmail.com> <7346c5c61001091706m45a3a2a5k3ca8bb0c4bec5ea8@mail.gmail.com> <7346c5c61001171521w1ca4738w98e8fcca24643cda@mail.gmail.com>
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On January 17, 2010, Garrett Moore wrote: > I upgraded my system to 8GB of ram to see if that would help. It hasn't > made much of a difference. After having rTorrent running for a while, my > performance again tanked. Around 6.5GB of memory was showing as 'Active' > according to top. 6.5GB of "active" memory seems to imply that a user process is growing or a large number of user processes are being created. I would expect ZFS's cache to increase the size of "wired" memory. Sorry, I have not followed this thread closely. Are you sure that the degradation is ZFS related? Could it be caused by, for instance, a userland memory leak? What happens to active memory when you restart rtorrent? Cheers, -- Norbert Papke. npapke@acm.org http://saveournet.ca Protecting your Internet's level playing field
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