On Tue, Mar 31, 2009 at 8:43 PM, Ross S. W. Walker <RWalker@xxxxxxxxxxxxx> wrote: > IET just needs to fix how it does it workload with CFQ which > somehow SCST has overcome. Of course SCST tweaks the Linux kernel to > gain some extra speed. I'm not familiar with the implementation details of CFQ, but I know that one of the changes between SCST 1.0.0 and SCST 1.0.1 is that the default number of kernel threads of the scst_vdisk kernel module has been increased to 5. Could this explain the performance difference between SCST and IET for FILEIO and BLOCKIO ? Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
