Can you give us a command to call (using bonnie++ binaries) that will give a more real-world test of filesystem and disk performance? I'd like to see how bonnie++ differs from hdparm in results.
Thanks-
Eric
On Sun, 1 Dec 2002 00:30, Thomas Kirk wrote:hdparm is NOT a real world test!On Fri, Nov 29, 2002 at 05:07:16PM +0100, Nicolas Bougues wrote: > You should probably try to time the disk reads, not the buffer cache... > > hdparm -tYes the disk reads is a more realistic real world test : /dev/sda5: Timing buffer-cache reads: 128 MB in 1.23 seconds =104.07 MB/sec guf:~# hdparm -t /dev/sda5
In real world operation you use a file system not direct access to the device. Bonnie++ is one of many file system benchmarks that you can use to get
results that are more useful than hdparm.
If you want to look at the performance of a raw device then use zcav (part of
Bonnie++), it allows you to easily graph the varying performance across a
partition.
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