On Sun, 14 Jan 2001, Ingo Molnar wrote:
> in this case there could still be valid performance differences, as
> copying from user-space is cheaper than copying from the pagecache. To
> rule out SMP interactions, you could try a UP-IOAPIC kernel on that box.
Let me complete this with the ZC patches first. then i'll do that.
There are a few retarnsmits; maybe receiver IRQ affinity might help some.
> (I'm also curious what kind of numbers you'll get with the zerocopy
Working on it.
> no, in the case of a single thread this should have minimum impact. But
> i'd suggest to increase the /proc/sys/net/tcp*mem* values (to 1MB or
The upper thresholds to 1000000 ?
I should have mentioned that i set /proc/sys/net/core/*mem*
to currently 262144.