[Gluster-devel] Glusterfs setup+benchmark (slow?)

[Fredrik Steen]

Hello,

Trying to get som idea of the performance of a glusterfs setup. 
I'm not very happy with the numbers I have got from my tests.
I would like to check with you folks and see if my setup/numbers
looks correct...

The setup consists of 3 glusterfs servers using 1G RAM
(boot param mem=1024M) 
 
Hw setup (3 server 1 client):
------------------------------
 - 2 x Intel(R) Xeon(R) CPU E5420  @ 2.50GHz (8 cores)
 - Intel Corporation 80003ES2LAN Gigabit Ethernet Controller
 - ATA-7: ST380815AS, 3.AAD, max UDMA/133


Versions used:
---------------
 glusterfs: glusterfs-1.3.8pre5
 fuse: fuse-2.7.2glfs9
 CentOS: 5


Local disk timings (hdparm -Tt):
--------------------------------
 Timing cached reads:   24636 MB in  1.99 seconds = 12353.07 MB/sec


Network Throughput:
-------------------
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    MBytes/sec  
87380  16384  16384    180.03    112.23   


Server config:
------------------------------------------------------
volume brick
  type storage/posix
  option directory /data/export
end-volume

volume brick-ns
  type storage/posix
  option directory /data/export-ns
end-volume

volume server
  type protocol/server
  option transport-type tcp/server
  option auth.ip.brick.allow *
  option auth.ip.brick-ns.allow *
  subvolumes brick brick-ns
end-volume
------------------------------------------------------


Client config (unify):
------------------------------------------------------
volume remote1
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.164
  option remote-subvolume brick
end-volume

volume remote2
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.197
  option remote-subvolume brick
end-volume

volume remote3
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.46
  option remote-subvolume brick
end-volume

volume remote-ns
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.164
  option remote-subvolume brick-ns
end-volume

volume unify0
  type cluster/unify
  option scheduler rr
  option namespace remote-ns
  subvolumes remote1 remote2 remote3
end-volume
------------------------------------------------------


Client config (stripe):
------------------------------------------------------
volume remote1
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.164
  option remote-subvolume brick
end-volume

volume remote2
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.197
  option remote-subvolume brick
end-volume

volume remote3
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.10.10.46
  option remote-subvolume brick
end-volume

volume stripe
   type cluster/stripe
   option block-size *:1MB
   subvolumes remote1 remote2 remote3
 end-volume
------------------------------------------------------

These simple tests was made with dd and in the case
with 3 concurrent processes first 3 concurrent write
and then 3 concurrent write.


Test #1 (1 client 3 servers 1 write process) Stripe
------------------------------------------------------

Write test:
 * 10485760000 bytes (10 GB) copied, 128.899 seconds, 81.3 MB/s
 * 10485760000 bytes (10 GB) copied, 128.435 seconds, 81.6 MB/s
 * 10485760000 bytes (10 GB) copied, 134.973 seconds, 77.7 MB/s 

Read test:
 * 10485760000 bytes (10 GB) copied, 530.27 seconds, 19.8 MB/s
 * 10485760000 bytes (10 GB) copied, 455.247 seconds, 23.0 MB/s
 * 10485760000 bytes (10 GB) copied, 449.548 seconds, 23.3 MB/s 



Test #2 (1 client 3 servers 3 concurrent processes) Stripe
------------------------------------------------------
Process 1:
----------
Write:
 * 5242880000 bytes (5.2 GB) copied, 584.393 seconds, 9.0 MB/s
 * 5242880000 bytes (5.2 GB) copied, 583.894 seconds, 9.0 MB/s
 * 5242880000 bytes (5.2 GB) copied, 588.164 seconds, 8.9 MB/s 

Read:
 * 5242880000 bytes (5.2 GB) copied, 386.279 seconds, 13.6 MB/s
 * 5242880000 bytes (5.2 GB) copied, 385.255 seconds, 13.6 MB/s
 * 5242880000 bytes (5.2 GB) copied, 386.346 seconds, 13.6 MB/s 

Process 2:
----------
Write
 * 5242880000 bytes (5.2 GB) copied, 587.611 seconds, 8.9 MB/s
 * 5242880000 bytes (5.2 GB) copied, 589.912 seconds, 8.9 MB/s
 * 5242880000 bytes (5.2 GB) copied, 605.053 seconds, 8.7 MB/s :

Read:
 * 5242880000 bytes (5.2 GB) copied, 411.217 seconds, 12.7 MB/s
 * 5242880000 bytes (5.2 GB) copied, 386.303 seconds, 13.6 MB/s
 * 5242880000 bytes (5.2 GB) copied, 386.303 seconds, 13.6 MB/s 

Process 3:
----------
Write:
 * 5242880000 bytes (5.2 GB) copied, 587.612 seconds, 8.9 MB/s
 * 5242880000 bytes (5.2 GB) copied, 589.902 seconds, 8.9 MB/s
 * 5242880000 bytes (5.2 GB) copied, 605.063 seconds, 8.7 MB/s 

Read:
 * 5242880000 bytes (5.2 GB) copied, 411.217 seconds, 12.7 MB/s
 * 5242880000 bytes (5.2 GB) copied, 386.303 seconds, 13.6 MB/s
 * 5242880000 bytes (5.2 GB) copied, 386.303 seconds, 13.6 MB/s 


Test #3 (1 client 3 server 2 write then 2 read processes) Unify
----------------------------------------------------------------
(only two tests runs ran out of time with hw)
Process 1:
----------
Write:
 * 5242880000 bytes (5.2 GB) copied, 858.661 seconds, 6.1 MB/s
 * 5242880000 bytes (5.2 GB) copied, 218.973 seconds, 23.9 MB/s 

Read:
 * 5242880000 bytes (5.2 GB) copied, 447.404 seconds, 11.7 MB/s
 * 5242880000 bytes (5.2 GB) copied, 432.071 seconds, 12.1 MB/s 

Process 2:
----------
Write:
 * 5242880000 bytes (5.2 GB) copied, 214.628 seconds, 24.4 MB/s
 * 5242880000 bytes (5.2 GB) copied, 483.334 seconds, 10.8 MB/s 
 
Read:
 * 5242880000 bytes (5.2 GB) copied, 320.471 seconds, 16.4 MB/s
 * 5242880000 bytes (5.2 GB) copied, 662.589 seconds, 7.9 MB/s 

Process 3:
----------
Write:
 * 5242880000 bytes (5.2 GB) copied, 214.799 seconds, 24.4 MB/s
 * 5242880000 bytes (5.2 GB) copied, 809.602 seconds, 6.5 MB/s 

Read:
 * 5242880000 bytes (5.2 GB) copied, 660.162 seconds, 7.9 MB/s
 * 5242880000 bytes (5.2 GB) copied, 458.078 seconds, 11.4 MB/s 

# End of tests


What do you think? Do my numbers and setup look sane?


Cheers, Fredrik Steen



-- 
.Fredrik Steen
Senior Linux Systems Specialist
South Pole AB, www.southpole.se
08 - 56 23 7121