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PERF: vbench for mixed groupby with datetime (GH7555) #7560

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merged 1 commit into from
Jun 24, 2014
Merged

PERF: vbench for mixed groupby with datetime (GH7555) #7560

merged 1 commit into from
Jun 24, 2014
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@jreback jreback commented Jun 24, 2014

closes #7555

-------------------------------------------------------------------------------
Test name                                    | head[ms] | base[ms] |  ratio   |
-------------------------------------------------------------------------------
groupby_mixed_first                          |  10.8150 | 3900.5923 |   0.0028 |
-------------------------------------------------------------------------------

Ratio < 1.0 means the target commit is faster then the baseline.
Seed used: 1234

Target [bc5599a] : PERF: vbench for mixed groupby with datetime (GH7555)

PERF: perform coercing and casting on groupby agg by blocks
Base   [2bd4517] : Merge pull request #7544 from sinhrks/dtmixin

@jreback
PERF: vbench for mixed groupby with datetime (GH7555)
bc5599a 
PERF: perform coercing and casting on groupby agg by blocks
@jreback jreback added this to the 0.14.1 milestone Jun 24, 2014
This was referenced Jun 24, 2014
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jreback added a commit that referenced this pull request Jun 24, 2014
@jreback
Merge pull request #7560 from jreback/groupby_first_perf
80a3ee4 
PERF: vbench for mixed groupby with datetime (GH7555)
@jreback jreback merged commit 80a3ee4 into pandas-dev:master Jun 24, 2014
@jreback jreback mentioned this pull request Jun 25, 2014
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danielballan added a commit to danielballan/pandas that referenced this pull request Jan 27, 2015
@danielballan
WIP: Rebased after pandas-dev#7560
b47d3c8
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Dtype Conversions Unexpected or buggy dtype conversions Groupby Performance Memory or execution speed performance
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Performance decrease of groupby.first for datetime64 in 0.14
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