Here is a small btrfs vs. ext4 benchmark with kernel 2.6.37-rc1. compilebench with options -i 10 -r 30 on 2.6.37-rc1 btrfs =========================================================================intial create total runs 10 avg 73.11 MB/s (user 0.34s sys 1.96s) create total runs 5 avg 49.53 MB/s (user 0.41s sys 1.62s) patch total runs 4 avg 22.13 MB/s (user 0.09s sys 1.79s) compile total runs 7 avg 104.55 MB/s (user 0.08s sys 1.02s) clean total runs 4 avg 564.00 MB/s (user 0.01s sys 0.28s) read tree total runs 2 avg 29.62 MB/s (user 0.00s sys 2.77s) read compiled tree total runs 1 avg 31.85 MB/s (user 0.00s sys 5.03s) delete tree total runs 2 avg 4.06 seconds (user 0.11s sys 1.92s) no runs for delete compiled tree stat tree total runs 4 avg 2.79 seconds (user 0.07s sys 0.79s) stat compiled tree total runs 1 avg 2.50 seconds (user 0.10s sys 0.80s) ext4 =========================================================================intial create total runs 10 avg 120.03 MB/s (user 0.34s sys 1.31s) create total runs 5 avg 69.70 MB/s (user 0.44s sys 1.09s) patch total runs 4 avg 30.45 MB/s (user 0.05s sys 1.43s) compile total runs 7 avg 120.22 MB/s (user 0.07s sys 1.03s) clean total runs 4 avg 1199.56 MB/s (user 0.01s sys 0.10s) read tree total runs 2 avg 49.29 MB/s (user 0.03s sys 2.29s) read compiled tree total runs 1 avg 51.73 MB/s (user 0.04s sys 4.74s) delete tree total runs 2 avg 1.13 seconds (user 0.06s sys 0.68s) no runs for delete compiled tree stat tree total runs 4 avg 0.83 seconds (user 0.05s sys 0.44s) stat compiled tree total runs 1 avg 0.82 seconds (user 0.06s sys 0.45s) Best regards, Morten -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Nov 1, 2010 at 8:30 AM, Morten P.D. Stevens <mstevens@imt-systems.com> wrote:> Here is a small btrfs vs. ext4 benchmark with kernel 2.6.37-rc1. > > compilebench with options -i 10 -r 30 on 2.6.37-rc1 > > btrfs > > =========================================================================> intial create total runs 10 avg 73.11 MB/s (user 0.34s sys 1.96s) > create total runs 5 avg 49.53 MB/s (user 0.41s sys 1.62s) > patch total runs 4 avg 22.13 MB/s (user 0.09s sys 1.79s) > compile total runs 7 avg 104.55 MB/s (user 0.08s sys 1.02s) > clean total runs 4 avg 564.00 MB/s (user 0.01s sys 0.28s) > read tree total runs 2 avg 29.62 MB/s (user 0.00s sys 2.77s) > read compiled tree total runs 1 avg 31.85 MB/s (user 0.00s sys 5.03s) > delete tree total runs 2 avg 4.06 seconds (user 0.11s sys 1.92s) > no runs for delete compiled tree > stat tree total runs 4 avg 2.79 seconds (user 0.07s sys 0.79s) > stat compiled tree total runs 1 avg 2.50 seconds (user 0.10s sys 0.80s) > > ext4 > > =========================================================================> intial create total runs 10 avg 120.03 MB/s (user 0.34s sys 1.31s) > create total runs 5 avg 69.70 MB/s (user 0.44s sys 1.09s) > patch total runs 4 avg 30.45 MB/s (user 0.05s sys 1.43s) > compile total runs 7 avg 120.22 MB/s (user 0.07s sys 1.03s) > clean total runs 4 avg 1199.56 MB/s (user 0.01s sys 0.10s) > read tree total runs 2 avg 49.29 MB/s (user 0.03s sys 2.29s) > read compiled tree total runs 1 avg 51.73 MB/s (user 0.04s sys 4.74s) > delete tree total runs 2 avg 1.13 seconds (user 0.06s sys 0.68s) > no runs for delete compiled tree > stat tree total runs 4 avg 0.83 seconds (user 0.05s sys 0.44s) > stat compiled tree total runs 1 avg 0.82 seconds (user 0.06s sys 0.45s)Can you include the mkfs and mount options in use? -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2010/11/1 cwillu <cwillu@cwillu.com>:> > Can you include the mkfs and mount options in use?mkfs.btrfs /dev/sdb mount -t btrfs /dev/sdb /mnt/btrfs and for ext4: mkfs.ext4 /dev/sdb mount -t ext4 /dev/sdb/ mnt/btrfs Best regards, Morten -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 02/11/10 02:12, Morten P.D. Stevens wrote:> mkfs.btrfs /dev/sdb > mount -t btrfs /dev/sdb /mnt/btrfsIt would be interesting to see if the space_cache mount option makes any difference to your numbers. It''s commit 0af3d00bad38d3bb9912a60928ad0669f17bdb76. cheers, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html