> From [EMAIL PROTECTED] Sat Nov 14 13:57:10 1998
>
> > > AMD K6-233
>
> 64M
>
> > [...]
> > > 2 x fast/wide/ultra 9.1gig 7200rpm disks (/export) ---> /dev/md0
> > [...]
> > > -------Sequential Output-------- ---Sequential Input-- --Random--
> > > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> > > Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> > > 100 11281 96.0 23991 93.2 9835 80.9 10934 86.4 25079 80.6 393.7 9.3
> >
> > Don't these v. high CPU percentages imply that you're pretty much at the
> > limit of what your CPU/memory can do?...
>
> sure. though the real issue is that with 64M, most of this test is merely
> buffer/page-cache bandwidth. always run bonnie with -s of at least
> 2x physical ram, preferably >= 3x.
OK. Here's the same test with a 256M file...4 times the amount of
system RAM. It's not much different.
[root@newritz tmp]# bonnie -s 256
File './Bonnie.6807', size: 268435456
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
256 5578 55.5 5441 22.1 1982 14.7 4613 36.5 4466 12.9 78.2 2.7
[root@newritz /export]# bonnie -s 256
File './Bonnie.6813', size: 268435456
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
256 10522 97.5 23227 93.5 9997 81.5 10999 86.2 24410 79.2 227.8 7.9
Guess it's time to get a faster processor. 8-(
Regards,
Chris
--
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