On Wed, Apr 03, 2013 at 03:07:04AM -0600, Miao Xie wrote: > It is very likely that there are several blocks in bio, it is very > inefficient if we get their csums one by one. This patch improves > this problem by getting the csums in batch. > > According to the result of the following test, the execute time of > __btrfs_lookup_bio_sums() is down by ~28%(300us -> 217us). > > # dd if=<mnt>/file of=/dev/null bs=1M count=1024 > > Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx> This is panicing when I run my fsync tests and when kdave runs xfstest 91. I don't have time to track it down now so I'm just dropping it from btrfs-next. I'll look at it after I figure out this fsync bug unless you beat me to it. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
