Re: Problem with aacraid driver in 2.5.63-bk-latest

Alan Cox
2003-03-13T01:06:44Z

On Wed, 2003-03-12 at 23:55, Douglas Gilbert wrote:
> /*
> * Limit max queue depth on a single lun to 256 for now. Remember,
> * we allocate a struct scsi_command for each of these and keep it
> * around forever. Too deep of a depth just wastes memory.
> */
> if(tags > 256)
> return;
> ....

I can see the memory consideration. However the thing can really handle big
queues well. Possibly we should be setting the queue to 512 / somefunction(volumes)
though to avoid the worst case overcommit here