On Wed, Apr 18, 2007 at 07:32:03AM -0400, James Bottomley wrote:
> I don't think so: simply increasing the phys segments has no effect on a
> fully fragmented sg list if the hw segments doesn't go up to match it.
Yes, of course. It is then up to each scsi lld to increase max_hw_segments
accordingl
On Wed, 2007-04-18 at 10:21 +0200, Johann Lombardi wrote:
> We have observed noticeable performance improvement by using large single
> command data transfers (up to 4MB) with some storage subsystems such as DDN's.
> The patch below adds a new config option (CONFIG_SCSI_LARGE_SG) which allows
> to
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