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Date: Fri, 15 Aug 2008 13:52:52 -0400 From: Chris Mason <chris.mason@...cle.com> To: Theodore Tso <tytso@....edu> Cc: Andi Kleen <andi@...stfloor.org>, Peter Zijlstra <peterz@...radead.org>, linux-btrfs <linux-btrfs@...r.kernel.org>, linux-kernel <linux-kernel@...r.kernel.org>, linux-fsdevel <linux-fsdevel@...r.kernel.org> Subject: Re: Btrfs v0.16 released On Fri, 2008-08-15 at 09:45 -0400, Theodore Tso wrote: > On Fri, Aug 15, 2008 at 08:46:01AM -0400, Chris Mason wrote: > > Whoops the link above is wrong, try: > > > > http://oss.oracle.com/~mason/compilebench > > Thanks, I figured it out. > > > It is worth noting that the end throughput doesn't matter quite as much > > as the writeback pattern. Ext4 is pretty solid on this test, with very > > consistent results. > > There were two reasons why I wanted to play with compilebench. The > first is we have a fragmentation problem with delayed allocation and > small files getting forced out due to memory pressure, that we've been > working for the past week. Have you tried this one: http://article.gmane.org/gmane.linux.file-systems/25560 This bug should cause fragmentation on small files getting forced out due to memory pressure in ext4. But, I wasn't able to really demonstrate it with ext4 on my machine. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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