Author: cem
Date: Fri Aug 14 18:48:48 2020
New Revision: 364237
URL: https://svnweb.freebsd.org/changeset/base/364237
Log:
vm_pageout: Correct threshold calculation on single-CPU systems
Reported by: Michael Butler
X-MFC-With: r364129
Modified:
head/sys/vm/vm_pageout.c
Modified: head/sys/vm/vm_pageout.c
==============================================================================
--- head/sys/vm/vm_pageout.c Fri Aug 14 16:44:10 2020 (r364236)
+++ head/sys/vm/vm_pageout.c Fri Aug 14 18:48:48 2020 (r364237)
@@ -2216,7 +2216,7 @@ get_pageout_threads_per_domain(void)
* Semi-arbitrarily constrain pagedaemon threads to less than half the
* total number of threads in the system as an insane upper limit.
*/
- half_cpus_per_dom = (mp_ncpus / vm_ndomains) / 2;
+ half_cpus_per_dom = howmany(mp_ncpus / vm_ndomains, 2);
if (pageout_threads_per_domain < 1) {
printf("Invalid tuneable vm.pageout_threads_per_domain value: "
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