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Task #11184 (closed)

Opened 11 years ago

Closed 10 years ago

Unexplained import overhead

Reported by: jamoore Owned by: jamoore
Priority: critical Milestone: 5.0.0-rc1
Component: OmeroFs Version: 5.0.0-beta1
Keywords: n.a. Cc: fs@…
Resources: n.a. Referenced By: n.a.
References: n.a. Remaining Time: n.a.
Sprint: OMERO 5 Beta 2 (1)

Description (last modified by jamoore)

While preparing the FS workshop for Paris, there were a few surprisingly slow imports. An LEI dataset for example took roughly 100 seconds for some 140 files, while the pixel upload was much slower. Watching the stack traces via jstack in at least one instance, pointed at some of the directory creation logic to be taking too long. Perhaps due to one transaction per file?

This code path needs to be optimized. Though it's usable, there's no reason any of the OME5 imports should be significantly slower than the OME4 imports, unless there's significant non-binary data contained in the files.

Change History (4)

comment:1 Changed 11 years ago by jamoore

  • Description modified (diff)
  • Version set to 4.4.8

comment:2 Changed 11 years ago by jamoore

  • Version changed from 4.4.8 to 5.0.0-beta1

comment:3 Changed 10 years ago by jburel

  • Milestone changed from OMERO-5 to 5.0.0-beta2
  • Sprint changed from FS demo 4.x to OMERO 5 Beta 2 (1)

Moving to Beta2 for review

comment:4 Changed 10 years ago by jamoore

  • Resolution set to duplicate
  • Status changed from new to closed

Marking as a duplicate of #11250 since Roger added performance numbers. Thanks.

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