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Re: [Linux-cluster] GFS on 2.6.8.1 more simple performance numbers



On Mon, 2004-10-18 at 14:38, Kevin Anderson wrote:
[snip]
> 
> Can you rerun the ext3 numbers to the same storage as GFS?  Would also
> be interesting to run from two nodes simultaneously to separate ext3
> filesystems on the storage as well?  Doing dd's of the logical
> partitions would also be interesting to see what bandwidth the storage
> is capable of providing, first single node then simultaneous from both
> nodes.
> 

Partial ext3 results:

ext3 on 5 disk stripe
=====================
time tar xf /Views/linux-2.6.8.1.tar; time sync
real    0m5.221s user    0m0.442s sys     0m4.238s
real    0m8.214s user    0m0.000s sys     0m0.390s

(1st time)time du -s linux-2.6.8.1/
226916  linux-2.6.8.1/
real    0m2.888s user    0m0.035s sys     0m0.288s

time rm -rf linux-2.6.8.1/
real    0m2.131s user    0m0.022s sys     0m0.821s

data=writeback
--------------
time tar xf /Views/linux-2.6.8.1.tar; time sync
real    0m5.443s user    0m0.439s sys     0m4.056s
real    0m8.774s user    0m0.001s sys     0m0.388s

time rm -rf linux-2.6.8.1/; time sync
real    0m1.127s user    0m0.035s sys     0m1.012s

time du -s linux-2.6.8.1/
226916  linux-2.6.8.1/
real    0m2.741s user    0m0.058s sys     0m0.281s

data=log
========
time rm -rf linux-2.6.8.1/; time sync
real    0m2.106s user    0m0.024s sys     0m0.824s

time du -s linux-2.6.8.1/
226916  linux-2.6.8.1/
real    0m2.738s user    0m0.025s sys     0m0.312s

time tar xf /Views/linux-2.6.8.1.tar; time sync
real    0m22.784s user    0m0.445s sys     0m4.639s
real    0m1.234s user    0m0.001s sys     0m0.248s

Daniel


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