On Oct 5, 2007, at 10:01, John Madden wrote: >> I think that this is partly because ext3 does more aggressive read >> ahead >> (which would be a mixed blessing under heavy load), partly because >> reiserfs suffers from fragmentation. I imagine that there is >> probably a >> tipping point under the sort of very heavy load that Fastmail see. > > I second that - reiserfs seems to be truly horrible in write-heavy > situations. Worse, a backup of our remaining reiserfs partition takes > *days* to complete -- 165GB at ~500k/s. And this is a 32-disk > stripe of > fibre channel. I think what truly scares me about reiser is those rather regular posts to various mailing lists I'm on saying "my reiser fs went poof and lost all my data, what should I do?" -rob ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
