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Re: [Linux-cluster] Very poor performance of GFS2

On Jun 24, 2007, at 11:48 PM, Jordi Prats wrote:

I supose you say so because the disk could be slow, but it should not be this slow because they virtual machines and they are accesing the same way as is the local disk. (Both are LVM volumes)

I found almost no documentation about how to install GFS2, so I'm assuming I did something wrong. I supose GFS2 do not add about 5 minutes of delay because of it's operations!

I think you're right. GFS2 is *supposed* to be faster than the original GFS, and here's what I get.

ey00-s00001 data # pwd

ey00-s00001 data # time du -hs postgresql-8.2.4/
76M     postgresql-8.2.4/

real    0m0.061s
user    0m0.000s
sys     0m0.050s

ey00-s00001 data # df -Th
Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/sda1 reiserfs    2.0G  783M  1.3G  39% /
udev         tmpfs    512M  120K  512M   1% /dev
shm          tmpfs    512M     0  512M   0% /dev/shm
/dev/sdb1      gfs    227G  128G   99G  57% /data

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