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Re: kern/48178: Extremely slow disk read/write

The following reply was made to PR kern/48178; it has been noted by GNATS.

From: David Holland <>
Subject: Re: kern/48178: Extremely slow disk read/write
Date: Wed, 4 Sep 2013 06:23:03 +0000

 On Wed, Sep 04, 2013 at 06:20:01AM +0000, 
  > On NetBSD-current my disk speeds are terribly slow on 2 different
  > machines. on one of the machines, running STABLE is the solution,
  > but the other machine has new hardware which I want to test with
  > current. I've tried formatting the disk as ffs1 and ffs2, used
  > noatime and log options at mount, neither works. With log turned
  > on, speeds "seem" good at first until the system freezes for a
  > moment to catch up with the log. At this rate pkgsrc takes around
  > 1+ hour to extract, many times longer than on any other system I
  > have tried (OpenBSD, FreeBSD, DragonFly, Linux)
 You'll need to tell us a bit more, like what disk controllers and
 other related hardware are involved.
 David A. Holland

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