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Document different increase pattern for -P

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Document values of `-P` increasing as powers of 2 and following other
patterns.

Fixes #403
This commit is contained in:
Clément Joly 2021-10-10 19:26:13 +00:00 committed by David Peter
parent 8a4e791025
commit 5c6b302591
1 changed files with 5 additions and 1 deletions
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6
src/app.rs
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@ -113,7 +113,11 @@ fn build_app() -> App<'static, 'static> {
"Perform benchmark runs for each value in the range MIN..MAX. Replaces the \
string '{VAR}' in each command by the current parameter value.\n\n \
Example: hyperfine -P threads 1 8 'make -j {threads}'\n\n\
This performs benchmarks for 'make -j 1', 'make -j 2', …, 'make -j 8'.",
This performs benchmarks for 'make -j 1', 'make -j 2', …, 'make -j 8'.\n\n\
To have the value increase following different patterns, use shell arithmetics.\n\n \
Example: hyperfine -P size 0 3 'sleep $((2**{size}))'\n\n\
This performs benchmarks with power of 2 increases: 'sleep 1', 'sleep 2', 'sleep 4', …\n\
The exact syntax may vary depending on your shell and OS."
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.arg(