Ok, I've given this a whirl on a slightly larger system. There's no 10Gbit/sec in it yet, but it's stable under 64,000 sockets at 1Gbit/sec.
I'm going to commit this over the next couple of days unless there are any objections. The defaults are still the same so it won't affect the rest of you. -a On 14 May 2014 22:26, Adrian Chadd <adr...@freebsd.org> wrote: > .. and i've done a little more than no testing, so far so good. > > http://people.freebsd.org/~adrian/norse/20140514-tcp-rss-timers-2.diff > > This adds IP_FLOWID, IP_FLOWTYPE and IP_RSSCPUID to fetch the socket > flowid, flowtype and cpuid from the inp. It's mostly for debugging for > now. > > Thanks, > > > > -a > > > On 14 May 2014 21:43, Adrian Chadd <adr...@freebsd.org> wrote: >> Hi, >> >> here's a completely untested patch for discussion. I'm emailing it out >> mostly as a "is this a good idea" patch rather than a "it should just >> be committed" patch. >> >> The RSS stuff from Robert maps connections to pcbgroups based on the >> RSS hash, but it doesn't map the TCP timers the same way. So by >> default they're all on swi0 and the per CPU timers don't take the hash >> type or correctly choose the CPU. >> >> This patch: >> >> http://people.freebsd.org/~adrian/norse/20140514-tcp-rss-timers-1.diff >> >> does a few things: >> >> * it stores the hashtype in the inp as well as the flowid; >> * the rss code grows a new method that maps the flowid/hashtype to a cpuid >> * .. and the existing mbuf to cpuid method now uses this; >> * the tcp timer code now has an inline function that knows about RSS >> and defaults to the existing way of doing things if RSS isn't enabled. >> >> There's still a bunch of work left before all the lock contention >> compartmentalization and balancing of RSS is realised. I'm just >> chewing off the little corner bits that are easy to get done now. >> >> So, any comments? I'll give it a proper whirl on some 10G hardware in >> a few days but I thought I'd at least get the general idea out there >> for comment. >> >> Thanks, >> >> >> >> >> -a _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
