The stripe_cache_size is a VERY important feature! # Stripe tests: echo 8192 > /sys/block/md3/md/stripe_cache_size # DD TESTS $ dd if=/dev/zero of=10gb.no.optimizations.out bs=1M count=10240 10240+0 records in 10240+0 records out 10737418240 bytes (11 GB) copied, 96.6988 seconds, 111 MB/s $ dd if=/dev/zero of=10gb.8192k.stripe.out bs=1M count=10240 10240+0 records in 10240+0 records out 10737418240 bytes (11 GB) copied, 55.0628 seconds, 195 MB/s $ $ dd if=/dev/zero of=10gb.16384k.stripe.out bs=1M count=10240 10240+0 records in 10240+0 records out 10737418240 bytes (11 GB) copied, 56.2793 seconds, 191 MB/s - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
