While trying to get the onboard HPT372 working on a new motherboard
(Epox 8k5a2+ - KT333/VT8235) i tried successfully 2.4.20-pre8-ac3.
2.4.19 could read the fs on the HPT372 without any problem at full
media speed but could not write to it at all. I can provide details
if necessary. I did not use any of the raid stuff.
However I noticed a significant NFS performance drop with
2.4.20-pre8-ac3. Other network throughput is not affected.
Server: P-II 300, cheap RTL8139C, 2.4.19 (nearly vanilla).
Client: Athlon 2000+, onboard via-rhine.
### Client with linux-2.4.19 ###
[diavolo inferno-l2#> bonnie -s 1500 -S 100 -y -u
Bonnie 1.3: File './Bonnie.976', size: 1572864000, volumes: 1
Writing with putc_unlocked()...done: 10328 kB/s 10.5 %CPU
Rewriting... done: 4280 kB/s 3.2 %CPU
Writing intelligently... done: 10319 kB/s 3.8 %CPU
Reading with getc_unlocked()...done: 10436 kB/s 14.3 %CPU
Reading intelligently... done: 10712 kB/s 2.8 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (sync)----- ---Sequential Input-- --Rnd Seek-
-CharUnlk- --Block--- -Rewrite-- -CharUnlk- --Block--- --00k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
diavol 1*1500 10328 10.5 10319 3.8 4280 3.2 10436 14.3 10712 2.8 9.3 3.0
# ftp transfer
1072458941 bytes received in 01:37 (10.53 MB/s)
### Client with linux-2.4.20-pre8-ac3 ###
[diavolo inferno-l2#> bonnie -s 1500 -S 100 -y -u
Bonnie 1.3: File './Bonnie.987', size: 1572864000, volumes: 1
Writing with putc_unlocked()...done: 7356 kB/s 7.6 %CPU
Rewriting... done: 3168 kB/s 1.3 %CPU
Writing intelligently... done: 6939 kB/s 1.7 %CPU
Reading with getc_unlocked()...done: 7389 kB/s 7.0 %CPU
Reading intelligently... done: 7722 kB/s 2.1 %CPU
Seeker 1...Seeker 3...Seeker 2...start 'em...done...done...done...
---Sequential Output (sync)----- ---Sequential Input-- --Rnd Seek-
-CharUnlk- --Block--- -Rewrite-- -CharUnlk- --Block--- --00k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
diavol 1*1500 7356 7.6 6939 1.7 3168 1.3 7389 7.0 7722 2.1 9.9 3.8
[diavolo inferno-l2#> cat /proc/mounts | grep l2
inferno:/mnt/l2 /mnt/inferno-l2 nfs rw,v3,rsize=8192,wsize=8192,hard,intr,udp,lock,addr=inferno 0 0
# ftp transfer
1072458941 bytes received in 01:35 (10.69 MB/s)
Cheers,
Andreas
PS: Does a patch for only the HPT372 problem exist for 2.4.19? I get
somewhat nervous running an pre-ac kernel on a machine intended for
production use.
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This archive was generated by hypermail 2b29 : Mon Oct 07 2002 - 22:00:41 EST