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Changed default number of threads and added auto value.

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Changed default number of threads to 1 instead of autoconfigured value and
added a new `auto` variable which enables autoconfiguration of thread count.

The number of threads used when autoconfiguratio fails was changed from 4 to 1.

The default value of using N threads where N is the number of CPU cores was
not optimal as the possibility of rescheduling was higher the more utility
threads there were. Due to this, N-1 is deemed to be the better autoconfigured
value for thread count.
This commit is contained in:
Markus Makela
2015-12-14 11:56:34 +02:00
parent 78b5777d6e
commit 8d969aadd1
5 changed files with 39 additions and 20 deletions
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4
server/core/gw_utils.c
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@ -237,8 +237,8 @@ long get_processor_count()
#ifdef _SC_NPROCESSORS_ONLN
if ((processors = sysconf(_SC_NPROCESSORS_ONLN)) <= 0)
{
MXS_WARNING("Unable to establish the number of available cores. Defaulting to 4.");
processors = 4;
MXS_WARNING("Unable to establish the number of available cores. Defaulting to 1.");
processors = 1;
}
#else
#error _SC_NPROCESSORS_ONLN not available.