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PERF: improve MultiIndex get_loc performance #16346

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merged 8 commits into from
May 17, 2017
Merged

PERF: improve MultiIndex get_loc performance #16346

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3d3074b
PERF: improve hash collision check for single MI labels
jorisvandenbossche May 11, 2017
d1d1513
PERF: specialized hash function for single tuples
jorisvandenbossche May 12, 2017
664d2b3
feedback
jorisvandenbossche May 15, 2017
7cd3cc1
Simplify to reduce code duplication
jorisvandenbossche May 15, 2017
3bd0404
use infer_dtype_from_scalar
jorisvandenbossche May 16, 2017
287817a
move check for datetime tz to hashing function
jorisvandenbossche May 16, 2017
638f011
update whatsnew
jorisvandenbossche May 16, 2017
8acc9e8
add benchmarks
jorisvandenbossche May 16, 2017
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add benchmarks
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@jorisvandenbossche
jorisvandenbossche committed May 16, 2017
commit 8acc9e84c64009ddb3ec87126f0cd814e24260c3
12 changes: 12 additions & 0 deletions asv_bench/benchmarks/indexing.py
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Expand Up @@ -227,12 +227,24 @@ def time_multiindex_get_indexer(self):
def time_multiindex_large_get_loc(self):
self.mi_large.get_loc((999, 19, 'Z'))

def time_multiindex_large_get_loc_warm(self):
for _ in range(1000):
self.mi_large.get_loc((999, 19, 'Z'))

def time_multiindex_med_get_loc(self):
self.mi_med.get_loc((999, 9, 'A'))

def time_multiindex_med_get_loc_warm(self):
for _ in range(1000):
self.mi_med.get_loc((999, 9, 'A'))

def time_multiindex_string_get_loc(self):
self.mi_small.get_loc((99, 'A', 'A'))

def time_multiindex_small_get_loc_warm(self):
for _ in range(1000):
self.mi_small.get_loc((99, 'A', 'A'))

def time_is_monotonic(self):
self.miint.is_monotonic

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