lkml.org 
[lkml]   [2005]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectOdd IDE performance drop 2.4 vs 2.6?
Date
Hi there,

A new 'old' box, with near 3:1 hdparm -Tt /dev/hda performance drop
comparing 2.4.31 with 2.6.11.12. pII/266 on 440LX chipset. HDD set
to udma2 (max for h/w) with manuf. utility. Single master on ribbon.
CDROM on other ribbon. Two runs each via ssh login soon after boot:

Linux 2.4.31-si.
root@silly:~# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 344 MB in 1.99 seconds = 172.86 MB/sec
Timing buffered disk reads: 68 MB in 3.02 seconds = 22.52 MB/sec
root@silly:~# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 356 MB in 2.00 seconds = 178.00 MB/sec
Timing buffered disk reads: 68 MB in 3.04 seconds = 22.37 MB/sec
root@silly:~#

Linux 2.6.11.12a.
root@silly:~# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 340 MB in 2.01 seconds = 168.76 MB/sec
Timing buffered disk reads: 26 MB in 3.02 seconds = 8.60 MB/sec
root@silly:~# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 340 MB in 2.01 seconds = 169.26 MB/sec
Timing buffered disk reads: 26 MB in 3.02 seconds = 8.61 MB/sec
root@silly:~#

Hardware info, configs, etc at http://scatter.mine.nu/test/boxen/silly/
--Grant.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-06-13 06:07    [W:1.310 / U:1.280 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site