[Bioclusters] Tool to benchmark disk IO?

[Dan Bolser]

FYI:

Here is my local SCSI and IDE disk for comparison (size 104857600 again)



           -------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
scsi   100 10537 76.3 44958 32.5 108986 44.7 12314 74.6 418500 98.1 22027.8 88.1



           -------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
ide    100 13921 89.5 133969 81.1 27470 11.8 14553 87.6 430990 96.8 21952.2 93.3



           -------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
nfs    100  4240 25.9  5437  2.1  4780  2.4 19595 100.1 566942 99.7 2023.0 10.1