On Sat, Sep 26, 2009 at 8:13 AM, Jeff Layton <[email protected]> wrote: > Good morning, > > I'm running IOzone on a NILFS2 partition and it's running alot > slower that I had expected. I'm pretty sure it's because of the > checkpoints. I can change the protection_period to something > very small (or zero). Would that improve the performance? > The protection period only affects how the cleaner daemon will clean the old checkpoints, if 0 I guess it will just clean them up as soon as it can but it won't stop creating them. You could, just for benchmark purpose, kill nilfs_cleanerd which will stop checkpoint related activities.
> In addition, is there a way to turn off checkpointing? > The whole filesystem is based on those checkpoint, the fact that it is a log filesystem makes it so all writes are made at the end of the device, and when a write is complete, a checkpoint is made. > Thanks! > > Jeff _______________________________________________ users mailing list [email protected] https://www.nilfs.org/mailman/listinfo/users
