You may be interested in this thread started by the Badger people: https://groups.google.com/d/msg/golang-nuts/jPb_h3TvlKE/qdoHhxXeAwAJ
Apparently it can be used to increase the throughput of concurrent disk I/O heavy programs. Regards, Didier. On Thursday, December 5, 2019 at 10:51:50 AM UTC+1, Vincent Blanchon wrote: > > Hello Serhat, > > > Yes, I do not see a use case either. This is why I opened this thread, to > know if someone sees a use case since it has been mentioned on GitHub :) > > > > Le jeudi 5 décembre 2019 11:33:10 UTC+4, Serhat Şevki Dinçer a écrit : >> >> In runtime it says: >> >> The GOMAXPROCS variable limits the number of operating system threads >> that can execute user-level Go code simultaneously. There is no limit to >> the number of threads that can be blocked in system calls on behalf of Go >> code; those do not count against the GOMAXPROCS limit. This package's >> GOMAXPROCS function queries and changes the limit. >> >> So normally it does not make sense to increase it beyond available >> physical "HW threads" (I think this is what you meant with cpu) count >> (since blocked threads do not count towards this limit). >> As long as "active thread accounting" is accurate in the OS, I dont see >> any reason to set it higher. I think it is easy to test >HWthreads effects >> with a concurrent cpu-intensive job. >> >> On Wednesday, December 4, 2019 at 8:24:13 PM UTC+3, Vincent Blanchon >> wrote: >>> >>> Hello, >>> >>> >>> I've read on GitHub ( >>> https://github.com/golang/go/issues/20303#issuecomment-329418911) >>> "there are good reasons" to set GOMAXPROCS to > num CPU. >>> Just out of curiosity, I want to know if someone has an example of it or >>> any good reason to set it up more than the number of CPUs? >>> >>> Thanks >>> >> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/626524d4-99b0-45a6-836c-df16bcce5ea6%40googlegroups.com.
