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| author | Evan Klitzke <evan@eklitzke.org> | 2018-03-06 12:50:20 -0500 |
|---|---|---|
| committer | Evan Klitzke <evan@eklitzke.org> | 2018-03-26 15:59:41 -0700 |
| commit | d54874d795a523d7cad5f4a9f4270145e56238f8 (patch) | |
| tree | f39d91af0b1506f87c94c75aebf8e901530c70bc /src/util.h | |
| parent | 0a018431c447bbf18bdaa6a1037aad6a87c1294a (diff) | |
| download | bitcoin-d54874d795a523d7cad5f4a9f4270145e56238f8.tar.xz | |
Set SCHED_BATCH priority on the loadblk thread.
While reading another PR I saw a mention of #6358. The use case for
SCHED_BATCH is to hint to the kernel that the thread is running a
non-interactive workload that consumes a lot of CPU time. This is
helpful on desktop machines where the loadblk thread can interfere with
interactive applications. More details can be found in the sched(7) man
page.
Diffstat (limited to 'src/util.h')
| -rw-r--r-- | src/util.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h index 04ff44f218..a9f64a0566 100644 --- a/src/util.h +++ b/src/util.h @@ -357,4 +357,13 @@ std::unique_ptr<T> MakeUnique(Args&&... args) return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); } +/** + * On platforms that support it, tell the kernel the calling thread is + * CPU-intensive and non-interactive. See SCHED_BATCH in sched(7) for details. + * + * @return The return value of sched_setschedule(), or 1 on systems without + * sched_setchedule(). + */ +int ScheduleBatchPriority(void); + #endif // BITCOIN_UTIL_H |