Re: Warning - running *really* short on DMA buffers while doing file transfers
From: Jens Axboe <hidden>
Date: 2002-09-27 07:19:38
Also in:
lkml
From: Jens Axboe <hidden>
Date: 2002-09-27 07:19:38
Also in:
lkml
On Fri, Sep 27 2002, Matthew Jacob wrote:
quoted
So I think the 'more tags the better!' belief is very much bogus, at least for the common case.Well, that's one theory.
Numbers talk, theory spinning walks Both Andrew and I did latency numbers for even small depths of tagging, and the result was not pretty. Sure this is just your regular plaino SCSI drives, however that's also what I care most about. People with big-ass hardware tend to find a way to tweak them as well, I'd like the typical systems to run fine out of the box though. -- Jens Axboe