Johnny Hughes wrote:
> If you are using XFS ... make sure to use the standalone modules and not
> the versions with XFS compiled into the kernel.
>
> The standalone modules are much newer code from SGI.
>
> I would also recommend using the x86_64 arch if it can be used as the
> x86_64 kernel is more stable w/XFS due to the 4K stacks issue that
> sometimes causes problems with the i386 arch.
Oooh, I hit a subject close to the heart of one of the developers! :)
I installed the centosplus kernel so I could play with JFS and ReiserFS as
well as XFS. However, I don't think the XFS modules are present in the
centosplus kernel package. At least I didn't find them under /lib/modules
until after installing the separate kernel-module-xfs packages.
Already running x86_64 -- this host has dual Xeon 5130s.
So here's the big question, what are the pluses and minuses of XFS vs JFS vs
ReiserFS? Below are some quick benchmarks. XFS clearly wins the speed contest
unless there's some tuning that can be done. Any thoughts?
Kirk Bocek
XFS:
------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
Beryl 10G:64k 58142 93 202483 35 55925 8 46244 73 160890 14 200.6 2
Beryl 10G:64k 60640 94 204090 38 55043 8 48603 74 168764 15 200.8 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
Beryl 16 3112 15 +++++ +++ 4276 19 2673 13 +++++ +++ 811 4
Beryl 16 3242 16 +++++ +++ 4249 19 2903 15 +++++ +++ 828 4
JFS:
------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
Beryl 10G:64k 58559 91 152961 22 61014 8 46598 75 167160 15 204.6 2
Beryl 10G:64k 58952 92 153184 22 60521 8 49865 74 173444 15 200.3 1
Beryl 10G:64k 58942 92 148911 22 60246 8 49980 75 172518 15 193.4 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
Beryl 16 8829 14 +++++ +++ 10052 19 6571 31 +++++ +++ 3123 9
Beryl 16 7483 14 +++++ +++ 10110 20 6329 28 +++++ +++ 1257 4
Beryl 16 9601 18 +++++ +++ 9890 19 6438 28 +++++ +++ 1816 5
ReiserFS:
------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
Beryl 10G:64k 59667 93 83212 18 37790 6 41001 67 108422 13 168.1 1
Beryl 10G:64k 59390 93 83568 18 41905 7 46799 71 110146 13 168.4 2
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
Beryl 16 +++++ +++ +++++ +++ 27965 100 32467 100 +++++ +++ 25871 100
Beryl 16 +++++ +++ +++++ +++ 27676 99 +++++ +++ +++++ +++ 26409 99