Message270280
| Author |
Demur Rumed |
| Recipients |
Demur Rumed, eric.smith, mjpieters, serhiy.storchaka, ztane |
| Date |
2016年07月13日.01:03:24 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<1468371804.75.0.0144011224425.issue27078@psf.upfronthosting.co.za> |
| In-reply-to |
| Content |
The simplest perf fix is to first use BUILD_TUPLE instead of BUILD_LIST
timeit 'x=1;(x,x,x)'
0.36 usec per loop
timeit 'x=1;[x,x,x]'
0.425 usec per loop
Introducing a new opcode BUILD_STRING to inline PyTuple_New + PyUnicode_Join to replace BUILD_TUPLE + CALL_FUNCTION should benchmark against BUILD_TUPLE version, not BUILD_LIST + CALL_FUNCTION |
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