Currently (in 2.6.x), the RAID5 stripe cache has a cache unit size of PAGE_SIZE (4KB for x86, as STRIPE_SIZE is defined in md/raid5.c).
For 2.4.x, due to buffer_head restriction of one vector per header, this is a reasonable restriction. For 2.6.x with bio capable of multiple vectors, we might consider increasing STRIPE_SIZE for performance reasons. Is there any work or patch available in this area? Thanks. Tzung. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
