[Bioclusters] Tool to benchmark disk IO?

[Farul M. Ghazali]

On Fri, 24 Sep 2004, Dan Bolser wrote:

> Thanks for this, a preliminary test in an NFS directory gave me
>
> Seeker 1...Seeker 3...Seeker 2...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
>           100  4240 25.9  5437  2.1  4780  2.4 19595 100.1 566942 99.7 2023.0 10.1
>
> With default file size (104857600). The CPU is 'amazingly high' during
> reads.

That looks like 566MB/sec for sequential block reads. Is that a typo or do
you have a monster NFS server and network? :-)