Re: please eat my data!

diff --git a/ad/e7a6a2bf083412e655d1a8fa6d91ff8d4b6439 b/ad/e7a6a2bf083412e655d1a8fa6d91ff8d4b6439
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+From: Dirk Hohndel <hohndel@infradead.org>\r
+To: Stewart Smith <stewart@flamingspork.com>, Sebastian Spaeth\r
+       <Sebastian@SSpaeth.de>, Jameson Rollins <jrollins@finestructure.net>,\r
+       Notmuch list <notmuch@notmuchmail.org>\r
+Subject: Re: please eat my data!\r
+In-Reply-To: <87ljcsr3tu.fsf@willster.local.flamingspork.com>\r
+References: <87633wlrrk.fsf@SSpaeth.de>\r
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+Date: Mon, 12 Apr 2010 10:47:47 -0700\r
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+\r
+On Mon, 12 Apr 2010 10:14:05 -0700, Stewart Smith <stewart@flamingspork.com> wrote:\r
+> On Mon, 12 Apr 2010 17:24:35 +0200, "Sebastian Spaeth" <Sebastian@SSpaeth.de> wrote:\r
+> > What I find intersting is that we have a 2x speedup and a 10x speedup\r
+> > for different queries. Olly was saying on IRC that both *should* really be\r
+> > behaving in much the same manner.\r
+> \r
+> Remember that on ext3 (and pretty sure ext4) fsync is the same as\r
+> sync(). So performance depends on how much dirty data you have in your cache.\r
+> \r
+> libeatmydata also gets rid of msync(), O_SYNC etc as well.\r
+\r
+Which is why so many of us have started to use BTRFS...\r
+\r
+Much smaller performance degradation when doing frequent fsync's\r
+\r
+/D\r
+\r
+-- \r
+Dirk Hohndel\r
+Intel Open Source Technology Center\r