Gregory Stark <stark(at)enterprisedb(dot)com> writes:
> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> Seems to me this proves nothing much, since it doesn't use the same SysV
>> semaphore API PG does.
> I was trying to copy the semaphore API exactly assuming
> USE_NAMED_POSIX_SEMAPHORES was *not* defined. According to the comments we
> prefer not to use named semaphores if possible.
What you seem to have copied is the posix_sema.c code, which AFAIK is
only used on Darwin. sysv_sema.c is what to look at ... unless your
benchmark machine is a Mac.
regards, tom lane