Date: Mon, 9 Jul 2007 14:08:36 -0400 From: "Brian Donnell" <bdonnell@gmail.com> To: "Pawel Jakub Dawidek" <pjd@freebsd.org> Cc: current@freebsd.org Subject: Re: ZFS leaking vnodes (sort of) Message-ID: <1c5c32890707091108m726d27a7ue9f44b99590e1934@mail.gmail.com> In-Reply-To: <20070709000918.GD1208@garage.freebsd.pl> References: <200707071426.18202.dfr@rabson.org> <20070709000918.GD1208@garage.freebsd.pl>
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I put these patches in on my i386, took out the i386 recommended tunings and increased the max vnodes as recommended for amd64. Last time I did this I was able to cause kmem_map errors very quickly. With these changes, however, I'm not seeing any problems yet. I'm running through as many tests as I can think of for file accesses and transfers between and out of zfs pools. So far so good. Other than the memory usage I haven't really noticed a change in performance. Note this is a pretty high spec'd machine I'm testing on, though. -- Brian On 7/8/07, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: > > Whoa! Nice catch... The patch works here - I did some pretty heavy > tests, so please commit it ASAP. > > I also wonder if this can help with some of those 'kmem_map too small' > panics. I was observing that ARC cannot reclaim memory and this may be > because all vnodes and thus associated data are beeing held. > > To ZFS users having problems with performance and/or stability of ZFS: > Can you test the patch and see if it helps? > >
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