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| author | Artyom Skrobov <tyomitch@gmail.com> | 2021-05-03 14:17:36 -0400 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2022-02-11 22:52:32 +1100 |
| commit | 18b1ba086c0e5547ca81030bf13b026961f80720 (patch) | |
| tree | 2eda1e61c4c61053b6ddd2f1c53e434854dadbd0 /examples/usercmodule/cppexample/example.cpp | |
| parent | e8bc4a3a5be12ad639b811852337c63e8f1d6277 (diff) | |
| download | micropython-18b1ba086c0e5547ca81030bf13b026961f80720.tar.gz micropython-18b1ba086c0e5547ca81030bf13b026961f80720.zip | |
py/qstr: Separate hash and len from string data.
This allows the compiler to merge strings: e.g. "update",
"difference_update" and "symmetric_difference_update" will all point to the
same memory.
No functional change.
The size reduction depends on the number of qstrs in the build. The change
this commit brings is:
bare-arm: -4 -0.007%
minimal x86: +150 +0.092% [incl +48(data)]
unix x64: -608 -0.118%
unix nanbox: -572 -0.126% [incl +32(data)]
stm32: -1392 -0.352% PYBV10
cc3200: -448 -0.244%
esp8266: -1208 -0.173% GENERIC
esp32: -1028 -0.068% GENERIC[incl -1020(data)]
nrf: -440 -0.252% pca10040
rp2: -1072 -0.217% PICO
samd: -368 -0.264% ADAFRUIT_ITSYBITSY_M4_EXPRESS
Performance is also improved (on bare metal at least) for the
core_import_mpy_multi.py, core_import_mpy_single.py and core_qstr.py
performance benchmarks.
Originally at adafruit#4583
Signed-off-by: Artyom Skrobov <tyomitch@gmail.com>
Diffstat (limited to 'examples/usercmodule/cppexample/example.cpp')
0 files changed, 0 insertions, 0 deletions