Re: sched_yield()

Bruce Momjian <maillist@candle.pha.pa.us>

From: Bruce Momjian <maillist@candle.pha.pa.us>
To: matti@algonet.se (Mattias Kregert)
Cc: scrappy@hub.org, dz@cs.unitn.it, hackers@postgreSQL.org
Date: 1998-03-22T04:01:12Z
Lists: pgsql-hackers
> Perhaps we should enable sched_yield() for every OS except for... well,
> what's the
> name of that OS which does not have sched_yield()...  FreeBSD ;)
> 
> After all, sched_yield() is five years old. Any reasonable OS should
> have it.

Gee, I just checked and BSDI has it.  However, it appears to work only
on threaded applications:

     #include <pthread.h>
...
     If other threads are ready to run, the sched_yield() function forces the
     current thread to suspend itself temporarily and let them execute.



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