On Jan 24, 2008 8:06 AM, Robin Humble <robin.humble+stgt@xxxxxxxxxx> wrote:
> On Tue, Jan 22, 2008 at 01:32:08PM +0100, Bart Van Assche wrote:
> >
> >.............................................................................................
> >. . STGT read SCST read . STGT read SCST read .
> >. . performance performance . performance performance .
> >. . (0.5K, MB/s) (0.5K, MB/s) . (1 MB >MB/s) (1 MB, MB/s) .
> >.............................................................................................
> >. Ethernet (1 Gb/s network) . 77 78 . 77 89 .
> >. IPoIB (8 Gb/s network) . 163 185 . 201 239 .
> >. iSER (8 Gb/s network) . 250 N/A . 360 N/A .
> >. SRP (8 Gb/s network) . N/A 421 . N/A 683 .
> >............................................................................................
>
Results with /dev/ram0 configured as backing store on the target (buffered I/O):
Read Write Read Write
performance performance performance performance
(0.5K, MB/s) (0.5K, MB/s) (1 MB, MB/s) (1 MB, MB/s)
STGT + iSER 250 48 349 781
SCST + SRP 411 66 659 746
Results with /dev/ram0 configured as backing store on the target (direct I/O):
Read Write Read Write
performance performance performance performance
(0.5K, MB/s) (0.5K, MB/s) (1 MB, MB/s) (1 MB, MB/s)
STGT + iSER 7.9 9.8 589 647
SCST + SRP 12.3 9.7 811 794
Bart.
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