Given an existing long-ish UTF8 string, add a newline char and turn it into a byte array (eg. for sending over a socket).
I added some UTF16 characters, so the string length is 500 but the resulting byte length is 606.
BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1526 (21H2) Intel Core i7-7820X CPU 3.60GHz (Kaby Lake), 1 CPU, 16 logical and 8 physical cores
|class bm_stringBuilder : public QObject|
All tests on STM32F4 @168MHz, with Kingston class 6 8GB SD. All times in micro seconds [us].
The "memory" statistic (where present) is delta of samples taken with
luaGetMemUsed() before and after
iteration/test (with no GC done in between).
The Lua environment was reloaded between each iteration (except for the
tLdScr.lua test which is all one run).
NOTE: The times listed here are really only relevant in comparison to other tests run on the same system. They will vary greatly based on system load, SD card speed/integrity, and other factors. The percentage of change is the most relevant statistic here. The benchmarks were run under "ideal" conditions, using a high-priority thread, to ensure consistent results.