![]() | |||||||||||||
Messages in this thread |
Hi, On Wed, 22 Dec 1999 18:15:45 -0500 (EST), arijort@valinux.com said: > I was looking around for a utility to give me some > stats on my disk io. Something like iostat in Solaris. > Well, I found that /proc/stat only reports stats > for 4 disks. I've just updated the sard code for 2.3.36/7. There's working code on ftp://ftp.uk.linux.org/pub/linux/sct/fs/profiling but I'm still auditing it for SMP correctness. The kernel patch adds detailed disk profiles to /proc/partitions, and the "sard" front-end prototype user-mode code gives output like: device %util qlen (ios:kB rd ios:kB wr ios:kB /sec) avwait (ms) [23:44:00] sda 48.01% 0.48 14:14 0:0 14:14 33.5 hda 2.79% 0.09 0:0 1:0 1:0 90.0 giving device IO queue utilisation, average IO queue length, IOs per second (read and write) and kB/sec transfered, and average IO wait time. I'll do a proper test on SMP tomorrow and post a final version. --Stephen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
| Last update: 2005-03-22 13:55 [from the cache] ©2003-2008 | |||||||||||||