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author | Sean McArthur <sean@seanmonstar.com> | 2020-04-09 12:42:46 -0700 |
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committer | GitHub <noreply@github.com> | 2020-04-09 12:42:46 -0700 |
commit | d294c992e7236d5279d9e1a49b4536b21ccbc835 (patch) | |
tree | 5d88b7c4563dac7d949c4cc1bf31ecc99be2f522 /tokio | |
parent | 58ba45a38cc101e695895cc39d8ee4ce74176397 (diff) |
Use logical CPUs instead of physical by default (#2391)
Some reasons to prefer logical count as the default:
- Chips reporting many logical CPUs vs physical, such as via
hyperthreading, probably know better than us about the workload the CPUs
can handle.
- The logical count (`num_cpus::get()`) takes into consideration
schedular affinity, and cgroups CPU quota, in case the user wants to
limit the amount of CPUs a process can use.
Closes #2269
Diffstat (limited to 'tokio')
-rw-r--r-- | tokio/src/loom/std/mod.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tokio/src/loom/std/mod.rs b/tokio/src/loom/std/mod.rs index 28644544..595bdf60 100644 --- a/tokio/src/loom/std/mod.rs +++ b/tokio/src/loom/std/mod.rs @@ -75,7 +75,7 @@ pub(crate) mod sync { pub(crate) mod sys { #[cfg(feature = "rt-threaded")] pub(crate) fn num_cpus() -> usize { - usize::max(1, num_cpus::get_physical()) + usize::max(1, num_cpus::get()) } #[cfg(not(feature = "rt-threaded"))] |