On Thu, Mar 12, 2015 at 12:37 PM, Adrian Chadd <adr...@freebsd.org> wrote:
> Do you have access to any boxes that have more than 12 cores?

I have a 14-core hyperthreaded machine (so 28 logical cores), but it has no
disk (long story).  I could do a build out of a memory disk though.

Also, to ask a stupid question - why wasn't the reader gifted a
> temporary priority boost because you were trying to acquire the write
> lock?
>

rwlocks don't have any metadata tracking what threads hold a read lock, so
it's impossible to propagate priority to them.  rwlocks only keep a counter
of the number of readers.
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Reply via email to