Jens Axboe wrote: > Hi, > > I was writing a small fio job file to do writes and read verifies on a > device. It forks 32 processes, each writing randomly to 4 files with a > block size between 4k and 16k. When it has written 1024 of those blocks, > it'll verify the oldest 512 of them. Each block is checksummed for every > 512b. It uses libaio and O_DIRECT. > > It works on ext2 and btrfs. I haven't run it to completion yet, but they > survive 15-20 minutes just fine. ext4 doesn't even go a full minutes > before this triggers: Jens, can you try XFS too? Since ext3 can't do direct IO to a hole, (and I'm not sure about btrfs in that regard), ext4 may be most similar to xfs's behavior on the test ... wondering how it fares. Thanks, -Eric -- 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
