Difference: GSIFTPTest (2 vs. 3)

Revision 32009/09/14 - Main.IgorSfiligoi

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Grid FTP Benchmarking tests

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 This page is meant to gather information about GridFTP? scalability tests.

OSG CE GridFTP?

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This test is meant to benchmark the CPU utilization of a standard OSG CE GridFTP? server.
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This test is meant to benchmark a standard OSG CE GridFTP? server.
  The test server was a OSG v1.0.0 CE, with:
  • 2 x AMD Opteron 275 (4 cores total)
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  • 2TB disk space, mounted as RAID0
  • CentOS? 5.2 (x86_64)
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-- IgorSfiligoi - 2009/09/10
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The first test was aimed at measuring the impact of security on the GridFTP? server.
  • A single file of 1.5Gb was transfered over LAN. The file was in server memory cache at all times.
    Between 1 and 8 clients per node on either 1 or 2 client nodes were used.The clients were writing to /dev/null.
  • The same test was repeated with the default settings (no security), intergrity checks (dcsafe) and full encryption (dcpriv).
  • The OSG CE GridFTP? server was shown to saturate the available network bandwidth, given enough clients.
    gridftp_ce_security_throughput.png
  • CPU usage is substantially higher when using integrityand/or encryption (up to 10x), but the OSG CE GridFTP? server never used up all of the CPUs (at minimum 12% of all CPU resources were idle at any given time).
    gridftp_ce_security_cpu.png
  • Full details can be found at gridftp_ce_security.pdf and gridftp_ce_security.ods.

-- IgorSfiligoi - 2009/09/14

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