lkml.org 
[lkml]   [2002]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Yet another disk transfer speed problem
Hi,

Here is fdisk -l results:

[root@yakuza root]# /sbin/fdisk -l /dev/hdg

Disk /dev/hdg: 255 heads, 63 sectors, 4866 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/hdg1 * 1 255 2048256 6 FAT16


[root@yakuza root]# /sbin/fdisk -l /dev/hde

Disk /dev/hde: 255 heads, 63 sectors, 1867 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/hde1 1 6 48163+ 83 Linux
/dev/hde2 7 1056 8434125 83 Linux
/dev/hde3 * 1154 1867 5735205 7 HPFS/NTFS
/dev/hde4 1057 1153 779152+ f Win95 Ext'd (LBA)
/dev/hde5 1057 1153 779121 82 Linux swap

Partition table entries are not in disk order


As you can see, I have a fat16 partition on hdg. I can delete it and make
an ext3 partition there and see if that changes anything.


Thanks,

-bharath

>>>

Could you provide fdisk -l for both? For some odd reason unknown to me
some filesystems give slower results with hdparm than others, even with
the buffer-cache reads (which are intended to measure memory speed, not
drive speed, and thus should be the same for all drives on a given
mainboard). Also, hdparm directly on the drive device is often a bit
slower than hdparm for the first (outermost) partition. These problems
have been far worse in older kernels, though. With 2.2 I once
benchmarked a vfat-partition at half the speed the same partition gave
as ext2.

Holger



-bharath





-
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: 2005-03-22 13:21    [W:0.043 / U:0.704 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site