[Gluster-users] GlusterFS Benchmarks

[Aleksanyan, Aleksandr]

I test GlusterFS on this equipment:

Backend LSI 7000, 80Tb, 24LUN's
4 OSS, Intel based  server, connect to LSI via  8Gb FiberChanel, 12Gb RAM
1 Intel based main server, connect to OSS via QDR InfiniBand, 12Gb RAM
and 16 Load Generators with 2 Xeon X5670, on board, 12Gb RAM.  QDR InfiniBand
I use IOR for test , and get next results:

 /install/mpi/bin/mpirun --hostfile /gluster/C/nodes_1p -np 16 /gluster/C/IOR -F -k -b10G -t1m
IOR-2.10.3: MPI Coordinated Test of Parallel I/O
Run began: Tue Oct 19 09:27:03 2010
Command line used: /gluster/C/IOR -F -k -b10G -t1m
Machine: Linux node1
Summary:
 api                = POSIX
 test filename      = testFile
 access             = file-per-process
 ordering in a file = sequential offsets
 ordering inter file= no tasks offsets
 clients            = 16 (1 per node)
 repetitions        = 1
 xfersize           = 1 MiB
 blocksize          = 10 GiB
 aggregate filesize = 160 GiB
Operation  Max (MiB)  Min (MiB)  Mean (MiB)   Std Dev  Max (OPs)  Min (OPs)  Mean (OPs)   Std Dev  Mean (s)
---------  ---------  ---------  ----------   -------  ---------  ---------  ----------   -------  --------
write        1720.80    1720.80     1720.80      0.00    1720.80    1720.80     1720.80      0.00  95.21174   EXCEL
read         1415.64    1415.64     1415.64      0.00    1415.64    1415.64     1415.64      0.00 115.73604   EXCEL
Max Write: 1720.80 MiB/sec (1804.39 MB/sec)
Max Read:  1415.64 MiB/sec (1484.40 MB/sec)
Run finished: Tue Oct 19 09:30:34 2010

Why read < write ? It's normal for GlusterFS ?

best regards
Aleksandr

С уважением,
  Алексанян Александр
  ОАО "Т-Платформы"
  Тел: +7(495)744-0980 (1434)
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