[Stgt-devel] No LUN option in target.c

[FUJITA Tomonori]

On Mon, 26 Nov 2007 12:25:19 +0100
Albert Pauw <albert.pauw at gmail.com> wrote:

> 2007/11/26-12:24:19 | STAT  | 3237 | v1.2.8 | /dev/sdb | Total read 
> throughput: 827938.1B/s (0.79MB/s), IOPS 25.3/s.
> 
> The patch didn't make a difference, sorry.

The performances in the configuration don't matter much, but I just
run initiator and target on the same machine:

sens:/home/fujita# hdparm -t /dev/sdd

/dev/sdd:
 Timing buffered disk reads:   20 MB in  3.15 seconds =   6.35 MB/sec
sens:/home/fujita# hdparm -t /dev/sdd

/dev/sdd:
 Timing buffered disk reads:  376 MB in  3.03 seconds = 124.25 MB/sec
sens:/home/fujita# hdparm -t /dev/sdd

/dev/sdd:
 Timing buffered disk reads:  400 MB in  3.08 seconds = 129.85 MB/sec
sens:/home/fujita# hdparm -t /dev/sdd

/dev/sdd:
 Timing buffered disk reads:  410 MB in  3.11 seconds = 131.89 MB/sec
sens:/home/fujita# hdparm -t /dev/sdd

/dev/sdd:
 Timing buffered disk reads:  410 MB in  3.02 seconds = 135.55 MB/sec


Seems that haparm isn't an appropriate tool to meature performance but
not bad performances.