On Jun 18, 2008 05:58 +0000, Holger Kiehl wrote: > 1.03 ------Sequential Output------ --Sequential Input- --Random- > -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- > ext4 K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP > 16G 52133 98 221378 95 106873 32 55707 99 297065 42 1546 4 > 16G 52042 98 220931 93 107715 32 55939 98 298810 42 1543 3 > 16G 52975 98 220976 93 108060 31 56426 98 298906 42 1452 4 > >ext4(patchqueue)16G 59727 98 252733 52 110177 25 55821 98 296739 42 1553 5 >> 16G 61047 99 239242 48 111664 25 55706 98 297151 42 1545 4 >> 16G 60503 99 241532 47 109655 25 55671 98 297648 42 1552 3 > > I forgot to mention that for bonnie ext4-patch-queue reduces CPU-load > a lot. For block writting it is nearly halved. That was the main reason for developing mballoc. With this patch it would be able to drive almost 500MB/s write, 600MB/s read on the above system instead of being CPU limited at 250/300MB/s. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
