ConvertToDiffractionMDWorkspace v2 performance

[mantid-builder]

Original Reporter: Russell Taylor

The new version of ConvertToDiffractionMDWorkspace created under http://trac.mantidproject.org/mantid/ticket/6856 has been shown to be substantially slower by a couple of system tests (SXDAnalysis & TOPAZPeakFinding). Plots of the timing changes are attached. The performance of SXDAnalysis was recovered by switching it back to using version 1 of ConvertToDiffractionMDWorkspace, but obviously this is not a solution to the fundamental problem.

Investigate and improve the performance where possible.

[mantid-builder]

This issue was originally trac ticket 7228

[mantid-builder]

http://trac.mantidproject.org/mantid/raw-attachment/ticket/7228/SystemTests.SXDAnalysis.SXDAnalysis.runtime.v.revision.png

(uploaded by Russell Taylor on 2013-05-31T21:03:05)

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http://trac.mantidproject.org/mantid/raw-attachment/ticket/7228/SystemTests.TOPAZPeakFinding.TOPAZPeakFinding.runtime.v.revision.png

(uploaded by Russell Taylor on 2013-05-31T21:03:11)

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