Messages in this thread | | | Date | Fri, 16 Dec 2011 13:16:09 +0800 | From | Wu Fengguang <> | Subject | Re: XFS/btrfs performance after IO-less dirty throttling |
| |
On Fri, Dec 16, 2011 at 12:25:08PM +0800, Dave Chinner wrote: > On Fri, Dec 16, 2011 at 09:53:11AM +0800, Wu Fengguang wrote: > > I'm indeed happy that you don't care that much on that regression > > introduced by me ;-) > > Heh. > > BTW, do these tests run to ENOSPC?
Nope. Shall ENOSPC (performance) be tested?
> > 10829.00 +4.3% 11296.00 TOTAL xfs:xfs_delalloc_enospc > > This implies that it does.
Not really. The USB key partition size is 7.1GB. Even in the fastest 1dd case, only 4GB data is written:
wfg@bee /export/writeback% cat fat/UKEY-thresh=100M/xfs-1dd-1-3.2.0-rc3/ls-files 131 -rw-rw-r-- 1 root root 4060078080 Dec 8 15:57 /fs/sdb3/zero-1
That's about 6.7MB/s write bandwidth running for 600 seconds.
Thanks, Fengguang
| |