GPFS Performance Report (Uses gpfsperf Command)

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Machine Informance

Node	8 nodes (1 server , 7 client provide disks)

CPU	Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (each node)

Memory

2GB DDR2 667 (each node)

Disk	320G+160G (each node), All nodes: (320G+ 160G) * 7 = 3.36T

NIC	Intel Corporation 82566DM Gigabit Network Connection

Switch

D-link 24 port GE switch

1. 8 Nodes, Replicate, Adjust Parameters

• Context: Create 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G -n 16g -r 1m 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 54649.55 Kbytes/sec, thread utilization 1.000 
  

• Context: Read 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G -n 16g -r 1m 
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
      Data rate was 83583.30 Kbytes/sec, thread utilization 1.000 
  

• Context: Write 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G -n 16g -r 1m 
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 50898.76 Kbytes/sec, thread utilization 1.000
  

2. 8 Nodes, No Replicate, Adjust Parameters

• Context: Create 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_2 -n 16g -r 1m 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_2 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 108330.24 Kbytes/sec, thread utilization 1.000 
  

• Context: Read 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_2 -n 16g -r 1m 
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_2 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
      Data rate was 82420.96 Kbytes/sec, thread utilization 1.000 
  

• Context: Write 16G data (sequence)

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_2 -n 16g -r 1m 
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_2 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 108820.45 Kbytes/sec, thread utilization 1.000 
  

3. Multi-thread

3.1 Create Operation

• Context: Create 16G data, 1 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 1 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 1 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 50800.95 Kbytes/sec, thread utilization 1.000
  

• Context: Create 16G data, 2 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 2 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 2 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 50297.13 Kbytes/sec, thread utilization 0.999 
  

• Context: Create 16G data, 4 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 4 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 4 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 50848.45 Kbytes/sec, thread utilization 0.998
  

• Context: Create 16G data, 8 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 8 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 8 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 50469.88 Kbytes/sec, thread utilization 0.963 
  

• Context: Create 16G data, 16 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 16 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 16 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 52578.33 Kbytes/sec, thread utilization 0.919 
  

• Context: Create 16G data, 32 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 32 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 32 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 53107.28 Kbytes/sec, thread utilization 0.966
  

• Context: Create 16G data, 64 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 -n 16g -r 1m -th 64 
  ./gpfsperf create seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 64 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
    no fsync at end of test 
      Data rate was 53019.53 Kbytes/sec, thread utilization 0.978
  

3.2 Read Operation

• Context: Read 16G data, 1 thread

{{{gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 1 ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3

recSize 1M nBytes 16G fileSize 16G nProcesses 1 nThreadsPerProcess 1 file cache flushed before test not using data shipping not using direct I/O offsets accessed will cycle through the same file segment not using shared memory buffer not releasing byte-range token after open

Data rate was 81685.18 Kbytes/sec, thread utilization 1.000

}}}

• Context: Read 16G data, 2 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 2
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 2
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
      Data rate was 90844.61 Kbytes/sec, thread utilization 0.999
  

• Context: Read 16G data, 4 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 4
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 4
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
      Data rate was 89538.89 Kbytes/sec, thread utilization 0.997
  

• Context: Read 16G data, 8 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 8
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 8
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
      Data rate was 87044.97 Kbytes/sec, thread utilization 0.994
  

• Context: Read 16G data, 16 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 16
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 16
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
      Data rate was 94899.75 Kbytes/sec, thread utilization 0.990
  

• Context: Read 16G data, 32 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 32 
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 32 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
      Data rate was 90657.18 Kbytes/sec, thread utilization 0.983 
  

• Context: Read 16G data, 64 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 64 
  ./gpfsperf read seq /home/gpfs_mount/gpfsperf_16G_3 
    recSize 1M nBytes 16G fileSize 16G 
    nProcesses 1 nThreadsPerProcess 64 
    file cache flushed before test 
    not using data shipping 
    not using direct I/O 
    offsets accessed will cycle through the same file segment 
    not using shared memory buffer 
    not releasing byte-range token after open 
      Data rate was 89751.67 Kbytes/sec, thread utilization 0.983
  

3.3 Write Operation

• Context: Write 16G data, 1 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 1
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 1
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 50819.17 Kbytes/sec, thread utilization 1.000
  

• Context: Write 16G data, 2 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 2
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 2
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 50588.81 Kbytes/sec, thread utilization 1.000
  

• Context: Write 16G data, 4 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 4
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 4
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 50694.87 Kbytes/sec, thread utilization 0.999
  

• Context: Write 16G data, 8 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 8
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 8
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 51648.90 Kbytes/sec, thread utilization 0.985
  

• Context: Write 16G data, 16 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 16
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 16
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 53019.51 Kbytes/sec, thread utilization 0.924
  

• Context: Write 16G data, 32 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 32
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 32
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 53003.69 Kbytes/sec, thread utilization 0.966
  

• Context: Write 16G data, 64 thread

  gpfs-server:/usr/lpp/mmfs/samples/perf# ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3 -r 1m -n 16g -th 64
  ./gpfsperf write seq /home/gpfs_mount/gpfsperf_16G_3
    recSize 1M nBytes 16G fileSize 16G
    nProcesses 1 nThreadsPerProcess 64
    file cache flushed before test
    not using data shipping
    not using direct I/O
    offsets accessed will cycle through the same file segment
    not using shared memory buffer
    not releasing byte-range token after open
    no fsync at end of test
      Data rate was 53590.98 Kbytes/sec, thread utilization 0.971
  

4. Compare

• All kind Operation (sequence)

	Replicate & Adjust Parameters	No Replicate & Adjust Parameters
Create	54649.55 KB/s	108330.24 KB/s
Read	83583.30 KB/s	82420.96 KB/s
Write	50898.76 KB/s	108820.45 KB/s

• Multi-thread (sequence)

	1	2	4	8	16	32	64
Create	50800.95 KB/s	50297.13 KB/s	50848.45 KB/s	50469.88 KB/s	52578.33 KB/s	53107.28 KB/s	53019.53 KB/s
Read	81685.18 KB/s	90844.61 KB/s	89538.89 KB/s	87044.97 KB/s	94899.75 KB/s	90657.18 KB/s	89751.67 KB/s
Write	50819.17 KB/s	50588.81 KB/s	50694.87 KB/s	51648.90 KB/s	53019.51 KB/s	53003.69 KB/s	53590.98 KB/s