On Jan 9, 2014, at 12:56 PM, Ethan Jackson wrote:
> FWIW the exact percentage gains are different in my setup, but the
> general result that these two patches stacked on top of each other
> make a big difference is consistent with what I've seen.
>
I had to bump the number of netperfs up to 50
FWIW the exact percentage gains are different in my setup, but the
general result that these two patches stacked on top of each other
make a big difference is consistent with what I've seen.
Ethan
On Thu, Jan 9, 2014 at 12:41 PM, Ben Pfaff wrote:
> On Thu, Jan 09, 2014 at 11:50:31AM -0800, Jarno
On Thu, Jan 09, 2014 at 11:50:31AM -0800, Jarno Rajahalme wrote:
> I tested this (without the extra malloc), and this is a minor
> improvement on master, but a huge, in the order of ~40% performance
> increase on top of the NUMA patches I sent yesterday. Also,
> performance does not vary so much an
Ben,
I tested this (without the extra malloc), and this is a minor improvement on
master, but a huge, in the order of ~40% performance increase on top of the
NUMA patches I sent yesterday. Also, performance does not vary so much any
more, and it is now actually beneficial to add more threads an
On Wed, Jan 08, 2014 at 11:07:38AM -0800, Alex Wang wrote:
> I suspect that this approach to a rwlock is faster when lots of threads
> > try to take the read lock at once, because it should avoid cross-core
> > contention on cache lines.
>
>
>
> For avoiding the contention, is that only because
I'm trying to learn, want to ask few questions
I suspect that this approach to a rwlock is faster when lots of threads
> try to take the read lock at once, because it should avoid cross-core
> contention on cache lines.
For avoiding the contention, is that only because each thread will have it
I suspect that this approach to a rwlock is faster when lots of threads
try to take the read lock at once, because it should avoid cross-core
contention on cache lines. I'm sending it out for initial performance
testing. The code needs some polish, but there's no point in doing it
unless it actua
