Difference: DCTest (14 vs. 15)

Revision 152011/06/03 - Main.IgorSfiligoi

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dCache Scalability Tests

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  The server hung up during the 1.2k run, and had to be manually restarted.
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Run 8

-- IgorSfiligoi - 2011/05/23

This test was similar to Run 7, just the the dcache version is now dcache-server-1.9.5-26.The clients were running on the UCSD sleeper pool.

The glideTester jobs were configured to run for 20 minutes (1200s) for concurrencies up to 150, and 40 minutes (2400s) up to 400 and 80 minutes (4800s) after that.

Complete results can be seen below:

Concurrency Succeeded (Rate) Failed
25 4.5k (3.7Hz) 0
50 5.5k (4.6Hz) 1
75 5.0k (4.3Hz) 0
100 4.5k (3.9Hz) 0
150 4.0k (3.3Hz) 0
200 6.7k (2.8Hz) 2
300 6.3k (2.6Hz) 0.4k
400 5.1k (2.1Hz) 1.0k
600 6.3k (1.3Hz) 1.7k
800 2.5k (0.5Hz) 76k
1000 0 ALL

The system performed slightly worse than before, hitting the wall at 1k. But it did recover by itself once the jobs stopped.

 

FNAL lcg-cp tests

The tests reported in this section were performed against that instance, using a glideTester instance using FNAL sleeper pool resources.

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  The server hung up during the 1.2k run, and had to be manually restarted.
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Run 5

-- IgorSfiligoi - 2011/05/23

This test was similar to Run 5, just the the dcache version is now dcache-server-1.9.5-26.The clients were running on the UCSD sleeper pool.

The glideTester jobs were configured to run for 20 minutes (1200s) for concurrencies up to 150, and 80 minutes (4800s) after that.

Complete results can be seen below:

Concurrency Succeeded (Rate) Failed
25 2.0k (1,7Hz) 0
50 2.5k (2.1Hz) 1
75 2.4k (2.0Hz) 0
100 2.3k (1.9Hz) 0
150 2.1k (1.8Hz) 43
200 6.7k (1.4Hz) 1.0k
300 5.9k (1.2Hz) 2.3k
400 4.9k (1.0Hz) 6.7k
600 2.6k (0.5Hz) 28k

The system performed slightly worse than before, severely degrading already at 600. But it never hang.

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