On Thu, 2007-01-11 at 11:48 -0800, john clyne wrote: > So what's the best course of action for increasing the 512kb IO transfer size > limit, changing SCSI_MAX_PHYS_SEGMENTS (currently 128 and apparently can be > set no greater than 256), or increasing the page size? Or is there another > option. Well, without knowing the details of what you want to do it's hard to say. Doug offered you a method via SG_IO (albeit involving buffer copying); you can just increase the SCSI_MAX_PHYS_SEGMENTS, or you could increase the PAGE_SIZE or use an IOMMU. For a given workload, you'll just have to see which works out best in practice. 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
