Test run using default values

This test run was conducted using the default values for most environmental factors. These are:
  • Standard Fedora installation, no changes
  • Java 1.5, no optimizations
  • Tomcat 5.5, without native library
  • MPTT Triplestore (no default, but reportedly the currently fastest triplestore implementation). For more data on the performance impact of triplestores, see this page.

External Referenced Content

Variables:
  • 50,000 Objects containing 3 - 6 Datastreams each
  • External referenced content unmanaged (CONTENT_GROUP='E')
  • Java 1.5 (1.5.0_13), no optimizations
  • Tomcat Servlet Container version 5.5
  • Standard Hardware as described here
  • Active Triplestore, MPTT Postgres installed on same host

Outcome:

total (ms)avg (ms)min (ms)max(ms)
5015104100356027

Managed Content

Variables:
  • 50,000 Objects containing 3 - 6 Datastreams each
  • Managed content'(CONTENT_GROUP='M')
  • Java 1.5 (1.5.0_13), no optimizations
  • Tomcat Servlet Container version 5.5
  • Standard Hardware as described here
  • Active Triplestore, MPTT Postgres installed on same host

Outcome:

total (ms)avg (ms)min (ms)max(ms)
7,531,557150485,328

Combination

The two images combined show, as expected, a markedly longer ingest time for digital objects with Fedora-managed datastreams containing managed content. The ingest time for this case largely depends on the size of the binary object as well as the throughput and latency of the networking connection.
For the described testrun network connection was not an issue, because the data resided on the local hard disk an was made available by the use of a Tomcat context.

The image below shows both test runs combined and smoothed with a simple moving average

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Kind Attachment Name Size Version Date Modified Author Change note
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fedrep1_managed_default_1200x8... 55.469 kB 1 Mon May 26 17:47:02 CEST 2008 KST
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fedrep1_managed_default_600x40... 13.623 kB 1 Mon May 26 17:47:13 CEST 2008 KST
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fedrep1_unmanaged_default_1200... 45.969 kB 1 Mon May 26 17:47:23 CEST 2008 KST
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fedrep1_unmanaged_default_600x... 10.515 kB 1 Mon May 26 17:47:34 CEST 2008 KST
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fedrep1_unmanaged_default_comb... 94.25 kB 1 Mon May 26 17:47:52 CEST 2008 KST
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fedrep1_unmanaged_default_comb... 26.006 kB 1 Mon May 26 17:47:59 CEST 2008 KST
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fedrep1_unmanaged_default_comb... 24.252 kB 1 Mon May 26 17:48:11 CEST 2008 KST
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fedrep1_unmanaged_default_comb... 10.519 kB 1 Mon May 26 17:48:27 CEST 2008 KST
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