Difference: HundredGigabit (7 vs. 8)

Revision 82011-11-03 - igable

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100G Notes

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I/0 Summary

 
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Test Type 5 x Deneva 2 Raid 0 Vertex 3
SSD to Memory with FDT (network) 6.580 Gb/s 2.970 Gb/s
Read from Disk to /dev/null (disk only) 6.105 Gb/s 2.752 Gb/s
Write to disk from /dev/zero (disk only) 5.131 Gb/s 3.081 Gb/s *

* higher bandwidth the the SATA 2 bus hence a suspect number

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Four Node to Four Node Test

  • Done on Nov 2
  • 250 GB transfered from each machine, in 25 files,

FDT command line like:

 java -jar fdt.jar -bio -c 10.200.0.55 -fl ~/fdt/filelist.txt -d /

Test Type Disk to Disk
scdemo01 -> scdemo05 Avg: 7.041 Gb/s
scdemo02 -> scdemo06 Avg: 9.138 Gb/s
scdemo03 -> scdemo07 Avg: 8.765 Gb/s
scdemo04 -> scdemo08 Avg: 9.137 Gb/s
 

Final Config

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Disk to Disk 8.8 Gb/s
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I/0 Summary (Outdated)

Test Type 5 x Deneva 2 Raid 0 Vertex 3
SSD to Memory with FDT (network) 6.580 Gb/s 2.970 Gb/s
Read from Disk to /dev/null (disk only) 6.105 Gb/s 2.752 Gb/s
Write to disk from /dev/zero (disk only) 5.131 Gb/s 3.081 Gb/s *

* higher bandwidth the the SATA 2 bus hence a suspect number

 

SSD to Memory with FDT

root@scdemo01 ~]# umount /ssd/
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   Iozone: Performance Test of File I/O
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Version $Revision: 1.7 $
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Version $Revision: 1.8 $
  Compiled for 64 bit mode.
Build
linux-AMD64
 
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