Message376460
Hi,
Here's a patch that adds an iterator to memoryview, which makes iterating over memoryview objs considerably faster.
The following values result from a compilation with debug ON.
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Without patch:
cpython: ./python.exe -m timeit -s "a=memoryview(b'x'*1000000)" "for x in a: pass"
5 loops, best of 5: 98 msec per loop
cpython: ./python.exe -m timeit -s "a=b'x'*1000000" "for x in a: pass"
5 loops, best of 5: 68.6 msec per loop
With patch:
cpython: ./python.exe -m timeit -s "a=memoryview(b'x'*1000000)" "for x in a: pass"
5 loops, best of 5: 68.1 msec per loop
cpython: ./python.exe -m timeit -s "a=b'x'*1000000" "for x in a: pass"
5 loops, best of 5: 70 msec per loop
------------------------------------------------------------------------
Please let me know your thoughts regarding it.
Diogo |
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Date |
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2020-09-06 09:06:52 | dxflores | set | recipients:
+ dxflores |
2020-09-06 09:06:52 | dxflores | set | messageid: <1599383212.96.0.797075491806.issue41732@roundup.psfhosted.org> |
2020-09-06 09:06:52 | dxflores | link | issue41732 messages |
2020-09-06 09:06:52 | dxflores | create | |
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