News for hackers. Stuff that matters.

A comment on No nuances, just buggy code (was: related to Spinlock implementation). Parent comment

Re:No nuances, just buggy code (was: related to Spinlock imp... by gok on Sunday January 05, 2020 @02:51PM (#21963555)
Yeah Linus is correct here, he's just not directly addressing why it works on some other schedulers.
[ Parent | on HN ]
Re:No nuances, just buggy code (was: related to Spinlock imp... by spamizbad on Monday January 06, 2020 @10:52AM (#21970018)
One reason they might act that way: They have nowhere near the amount of NUMA or cache locality optimization work the Linux kernel possesses. Thinking of the 2nd-generation Threadripper issues in Windows in particular.
[ Parent | on HN ]
Re:No nuances, just buggy code (was: related to Spinlock imp... by pizlonator on Monday January 06, 2020 @01:55PM (#21971899)
That's quite likely. I think that the sched_yield behavior is throughput-optimized, which is consistent with what you get when an OS is server-optimized like Linux.
[ Parent | on HN ]
Re:No nuances, just buggy code (was: related to Spinlock imp... by pizlonator on Sunday January 05, 2020 @03:30PM (#21963828)
Agreed.
[ Parent | on HN ]