On 05/02/2014 10:43 AM, Christoph Hellwig wrote: > On Fri, May 02, 2014 at 10:41:40AM -0600, Jens Axboe wrote: >>> At least for SCSI devices _tag space_ is plenty, it's just the we >>> artifically limit our tag space to the queue depth to avoid having to >>> track that one separately. In addition we also preallocaste a request >>> for each tag, so even if we would track the queue depth separately >>> we would waste a lot of memory. >> >> In practice it comes out to the same, it's not feasible to run a much >> larger space and track on queue depth. So I don't think that changes the >> conclusion for SCSI. > > Agreed. Just had to check if my smart ass hat still fits this morning..
If not, these are on sale http://www.cafepress.com/+smartass_trucker_hat,18823771 :-) -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
