Very slow sed...
Jeremy Chadwick
koitsu at FreeBSD.org
Wed Jun 20 19:20:04 UTC 2007
On Wed, Jun 20, 2007 at 10:24:01AM -0400, David Cross wrote:
> Ok the subject line is misleading.. but I don't know how else to put it. I
> have a machine on which SOME programs are slow. VERY SLOW. Other programs
> run just fine. I cannot seem to find the source of the problem.
Two things I can think of:
1) Memory issues -- memtest86 could help show this kind of problem. Try
removing memory, and if the problem continues, swapping the pair you
removed with the pair that's installed.
2) Disk issues -- reading /usr/bin/sed off the disk where there's a
soon-to-be-bad block. The disk may be trying to work around it and
doing a delayed read (inducing EC). This seems less likely to be the
case than bad memory, but I've seen it happen.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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