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Fix Where performance regression #5074

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merged 2 commits into from
Jan 26, 2024
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@lbooker42 lbooker42 commented Jan 25, 2024

PR #5032 introduced a serious performance issue in the where operations. This PR corrects this by using RowSet#insert() calls instead of a RowSetRandomBuilder which performs much worse in this scenario.

Performance comparisons (1.2B rows, main is before #5032 merged):

image

@lbooker42 lbooker42 self-assigned this Jan 25, 2024
@lbooker42 lbooker42 merged commit 2f0355a into deephaven:main Jan 26, 2024
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@github-actions github-actions bot locked and limited conversation to collaborators Jan 26, 2024
@lbooker42 lbooker42 deleted the lab-where-perf branch June 26, 2024 19:59
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3 participants