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bencher: improve CpuMode docs

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Joakim Frostegård 2024-02-09 00:54:14 +01:00
parent 696b5daed3
commit dfcf84adde
1 changed files with 8 additions and 0 deletions
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8
crates/bencher/src/common.rs
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@ -168,12 +168,20 @@ impl TryFrom<Range<usize>> for TaskSetCpuIndicator {
#[derive(Debug, Clone, Copy, clap::ValueEnum)] #[derive(Debug, Clone, Copy, clap::ValueEnum)]
pub enum CpuMode { pub enum CpuMode {
/// For 8 vCPU processor, use vCPU groups 0, 1, 2, 3, 4, 5, 6 and 7 /// For 8 vCPU processor, use vCPU groups 0, 1, 2, 3, 4, 5, 6 and 7
///
/// Suitable for bare-metal machines without hyperthreads/SMT.
Subsequent, Subsequent,
/// For 8 vCPU processor, use vCPU groups 0 & 4, 1 & 5, 2 & 6 and 3 & 7 /// For 8 vCPU processor, use vCPU groups 0 & 4, 1 & 5, 2 & 6 and 3 & 7
///
/// Suitable for bare-metal machines with hyperthreads/SMT.
SplitPairs, SplitPairs,
/// For 8 vCPU processor, use vCPU groups 0 & 1, 2 & 3, 4 & 5 and 6 & 7 /// For 8 vCPU processor, use vCPU groups 0 & 1, 2 & 3, 4 & 5 and 6 & 7
SubsequentPairs, SubsequentPairs,
/// For 8 vCPU processor, use vCPU groups 0, 2, 4 and 6 /// For 8 vCPU processor, use vCPU groups 0, 2, 4 and 6
///
/// Suitable for somewhat fairly comparing trackers on Hetzner virtual
/// machines. Since in-VM hyperthreads aren't really hyperthreads,
/// enabling them causes unpredictable performance.
SubsequentOnePerPair, SubsequentOnePerPair,
} }