On Wed, 2009-06-10 at 09:09 -0700, Anirban Chakraborty wrote: > On Jun 10, 2009, at 8:52 AM, Styner, Douglas W wrote: > > > > > Anirban Chakraborty [mailto:anirban.chakraborty@xxxxxxxxxx] write: > >> > >> You got it right. Basically we are doing: > >> 1. baseline scsi-misc + earlier patch > >> 2. baseline scsi-misc + this patch > >> And then compare 1 and 2. > > > > Results are as follows: > > Total interrupts are down slightly (-0.8%), QLA interrupts are flat > > (-0.1%) Cycles for qla2xxx_intr_handler up from .77% to .92%. > > So, it looks like using spin_lock_irqsave is doing a better job than > globally disabling the sharing of the interrupt via IRQF_DISABLED. OK, so just drop the msix changes and resubmit ... it'll have to go in SCSI misc, but once the merge window is over, you can request a backport to stable. James -- 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
