On 09/20/10 14:38, Chen Guo wrote:
> How difficult would it be to implement a basic spinlock in gnulib, though?
Portably? I'd think it'd be quite a pain, as it would require
figuring out this platform's atomic instructions, dealing with memory
barriers, and the like.
> I suppose a performance h
Hi all,
First regarding mutexes on Macs, I suppose a performance hit with mutexes beats
no performance at all with missing spinlocks. And regarding "take more work," I
believe spinlocks and mutexes were basically interchangeable in terms
of functionality
in our sort algorithm; the work probably wi
On 09/20/10 02:33, Pádraig Brady wrote:
> On a related note, I've been meaning to check
> if mutexes in coreutils/sort are more stable
> and/or fair to the system than spinlocks.
They ought to be fairer, though I'd expect there to be a significant
performance price in some cases. I'm not sure wha
On 20/09/10 07:21, Paul Eggert wrote:
> On 09/19/2010 07:43 PM, Gary V. Vaughan wrote:
>> my system headers have no pthread_spinlock_t definition, but
>> gnulib sees /usr/include/pthread.h and uses that instead of generating it's
>> own,
>> ...
>> I don't know enough about pthreads to tell whethe
