> We did benchmark Btrfs aio/dio performance before, we noticed one big > differences > from COW and nocow is not only checksum but checksum cost more metadata, > which will > make Btrfs performance drop suddenly for a while, because of metadata > reservation.
I mounted the filesystem with nodatacow which sould also switch off the checksuming but it didn't help - sudden drops are still there. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
