[Linux-cluster] GFS: more simple performance numbers

Derek Anderson danderso at redhat.com
Tue Oct 19 18:05:54 UTC 2004


I've rerun the simple performance tests originally run by Daniel McNeil with 
the addition of the gulm lock manager on the 2.6.8.1 kernel and GFS 6.0 on 
the 2.4.21-20.EL kernel.

Notes:
======
Storage:        RAID Array Tornado- Model: F4 V2.0
HBA:            QLA2310
Switch:         Brocade Silkworm 3200
Nodes:          Dual Intel Xeon 2.40Ghz
                2GB memory
                100Mbs Ethernet
                2.6.8.1 Kernel/2.4.21-20.EL Kernel (with gfs 6)
GuLM:           3-node cluster, 1 external dedicated lock manager
DLM:            3-node cluster
LVM:            Not used


tar xvf linux-2.6.8.1.tar:
--------------------------
                        real            user            sys
ext3 tar                0m3.509s        0m0.262s        0m2.471s
ext3 sync               0m1.051s        0m0.001s        0m0.204s

gfs dlm 1 node tar      0m19.480s       0m0.474s        0m8.975s
gfs dlm 1 node sync     0m3.167s        0m0.000s        0m0.195s

gfs dlm 2 node tar      0m29.225s       0m0.465s        0m9.670s
gfs dlm 2 node sync     0m3.398s        0m0.000s        0m0.224s
gfs dlm 2 node tar      0m43.355s       0m0.562s        0m10.159s
gfs dlm 2 node sync     0m4.922s        0m0.000s        0m0.226s

gfs gulm 1 node tar     0m36.568s       0m0.491s        0m7.831s
gfs gulm 1 node sync    0m3.243s        0m0.000s        0m0.152s

gfs gulm 2 node tar     0m57.271s       0m0.527s        0m8.025s
gfs gulm 2 node sync    0m2.471s        0m0.000s        0m0.145s
gfs gulm 2 node tar     0m40.271s       0m0.482s        0m7.799s
gfs gulm 2 node sync    0m3.636s        0m0.000s        0m0.224s

gfs 6 gulm 1 node tar   0m32.671s       0m0.480s        0m7.480s
gfs 6 gulm 1 node sync  0m3.436s        0m0.000s        0m0.120s

gfs 6 gulm 2 node tar   0m38.130s       0m0.440s        0m6.920s
gfs 6 gulm 2 node sync  0m3.731s        0m0.000s        0m0.110s
gfs 6 gulm 2 node tar   0m58.564s       0m0.500s        0m6.670s
gfs 6 gulm 2 node sync  0m0.971s        0m0.000s        0m0.070s

du -s linux-2.6.8.1 (after untar):
----------------------------------
                        real            user            sys
ext3                    0m0.103s        0m0.018s        0m0.055s

gfs dlm 1 node          0m5.149s        0m0.041s        0m1.905s

gfs dlm 2 node          0m11.127s       0m0.045s        0m1.839s
gfs dlm 2 node          0m8.883s        0m0.033s        0m1.904s

gfs gulm 1 node         0m0.355s        0m0.025s        0m0.330s

gfs gulm 2 node         0m0.358s        0m0.024s        0m0.334s
gfs gulm 2 node         0m0.358s        0m0.020s        0m0.338s

gfs 6 gulm 1 node       0m0.314s        0m0.010s        0m0.290s

gfs 6 gulm 2 node       0m0.308s        0m0.050s        0m0.250s
gfs 6 gulm 2 node       0m0.303s        0m0.000s        0m0.310s

Second du -s linux-2.6.8.1:
---------------------------
                        real            user            sys
ext3                    0m0.074s        0m0.025s        0m0.049s

gfs dlm 1 node          0m0.341s        0m0.027s        0m0.314s

gfs dlm 2 node          0m0.325s        0m0.024s        0m0.300s
gfs dlm 2 node          0m0.324s        0m0.020s        0m0.304s

gfs gulm 1 node         0m0.354s        0m0.022s        0m0.332s

gfs gulm 2 node         0m0.357s        0m0.023s        0m0.334s
gfs gulm 2 node         0m0.359s        0m0.021s        0m0.338s

gfs 6 gulm 1 node       0m0.299s        0m0.020s        0m0.280s

gfs 6 gulm 2 node       0m0.299s        0m0.000s        0m0.300s
gfs 6 gulm 2 node       0m0.302s        0m0.010s        0m0.290s

rm -rf linux-2.6.8.1:
---------------------
                        real            user            sys
ext3                    0m0.695s        0m0.013s        0m0.646s

gfs dlm 1 node          0m10.056s       0m0.038s        0m4.720s

gfs dlm 2 node          0m12.032s       0m0.043s        0m4.789s
gfs dlm 2 node          0m13.803s       0m0.052s        0m4.787s

gfs gulm 1 node         0m14.152s       0m0.066s        0m3.409s

gfs gulm 2 node         0m12.408s       0m0.039s        0m2.355s
gfs gulm 2 node         0m14.216s       0m0.038s        0m2.560s

gfs 6 gulm 1 node       4m30.759s       0m0.140s        0m3.890s

gfs 6 gulm 2 node       4m42.095s       0m0.060s        0m5.580s
gfs 6 gulm 2 node       4m49.479s       0m0.140s        0m4.450s





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