roachtest: use 2-minute ramp times for YCSB workloads#62535
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craig[bot] merged 1 commit intocockroachdb:masterfrom Mar 24, 2021
Merged
roachtest: use 2-minute ramp times for YCSB workloads#62535craig[bot] merged 1 commit intocockroachdb:masterfrom
craig[bot] merged 1 commit intocockroachdb:masterfrom
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In cockroachdb#62534 it was shown that it takes up to two minutes before we have good enough statistics to allocate appropriately sized batches. However, the YCSB workloads only had a 1-minute ramp time, which would skew the results as throughput would abruptly change when the statistics were updated during the test. This patch changes the ramp time for YCSB workloads to 2 minutes to make sure we have appropriate statistics before starting the actual test. Release note: None
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yuzefovich
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Mar 24, 2021
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FYI: not sure if you're aware, but we don't use the master version of roachtests when running them on old branches, so we'll need to backport this change too. (This was changed in the last 6 months.)
Reviewed 1 of 1 files at r1.
Reviewable status:complete! 1 of 0 LGTMs obtained (waiting on @jordanlewis)
erikgrinaker
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Mar 24, 2021
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Thanks for the headsup!
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In #62534 it was shown that it takes up to two minutes before we have
good enough statistics to allocate appropriately sized batches. However,
the YCSB workloads only had a 1-minute ramp time, which would skew the
results as throughput would abruptly change when the statistics were
updated during the test.
This patch changes the ramp time for YCSB workloads to 2 minutes to make
sure we have appropriate statistics before starting the actual test.
Release note: None