Steven Pratt wrote:
As discussed on the BTRFS conference call, myself and Kevin Corry have
set up some test machines for the purpose of doing performance testing
on BTRFS. The intent is to have a semi permanent setup that we can
use to test new features and code drops in BTRFS as well as to do
comparisons to other file systems. The systems are pretty much fully
automated for execution, so we should be able to crank out large
numbers of different benchmarks as well as keep up with GIT changes.
The data is hosted at http://btrfs.boxacle.net/. So far we have the
data for the single disk tests uploaded. We should be able to upload
results from the larger RAID config tomorrow.
Initial tests were done with the FFSB benchmark and we picked 5 common
workloads; create, random and sequential read, random write, and a
mail server emulation. We plan to expand this based on feedback to
include more FFSB tests and/or other workloads.
All runs have complete analysis data with them (iostat, mpstat,
oprofile, sar), as well as the FFSB profiles that can be used to
recreate any test we ran. We also have collected blktrace data but not
uploaded due to size.
Please follow the results link on the bottom of the main page to get
to the current results. Let me know what you like or don't like. I
will post again when we get the RAID data uploaded.
RAID data is now uploaded. The config used is 136 15k rpm fiber disks
in 8 arrays all striped together with DM. These results are not as
favorable to BTRFS, as there seem to be some major issues with random
write and mail server workloads.
http://btrfs.boxacle.net/repository/raid/Initial-compare/Initial-Compare-RAID0.html
Steve
Steve
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