On Sun, Jun 07, 2009 at 01:03:36AM +0900, Ryusuke Konishi wrote: > On Sun, 07 Jun 2009 00:11:13 +0900 (JST), Ryusuke Konishi wrote: > > Hi, > > On Sat, 6 Jun 2009 16:49:28 +0300, [email protected] wrote: > > > > I think the pause is related to garbage collection. What will happen > > if you mount the partition with -i option ? > > > > # mount -t nilfs2 -i /dev/xxx /mnt/media > > > > This option skips invoking the garbage collector (cleanerd). > > Oops, your log shows the cleanerd is sleeping. > > So, the 5 seconds interval likely comes from regular writeback by the > segment constructor thread. > > Could you tell me the product name of your USB flash ? > > I will try expansion of a rar file against my pendrive (cruzer) > > Thanks, > Ryusuke Konishi > > > If it raises throughput, you can adjust by slowing down cleanerd by > > rewriting /etc/nilfs_cleanerd.conf (a HUP signal must be sent to the > > cleanerd to reflect the change): > > > > # The maximum number of segments to be cleaned at a time. > > - nsegments_per_clean 2 > > + nsegments_per_clean 1 > > > > # Cleaning interval in seconds > > - cleaning interval 5 > > + cleaning interval 10 > > > > > > Thanks, > > Ryusuke Konishi > > _______________________________________________ > > users mailing list > > [email protected] > > https://www.nilfs.org/mailman/listinfo/users
Thank you for your fast replies . I already tried playing with nilfs_cleanerd.conf & It didn't help . Mounting with "-i" didn't help either Current tests with "tar -xvvf file.tar.gz" where the archive size is 73.8MB & the extraction time is 35-41 seconds in nilfs2 compared to 3-8 seconds in XFS on the same pendrive . I tested with two completely different pendrives & got the exact same result so the problem is not model-specific . If the bug is not reproducible , we can blame it on my system/setup . _______________________________________________ users mailing list [email protected] https://www.nilfs.org/mailman/listinfo/users
