On 20/05/15 16:57, Adrian Chadd wrote: > On 20 May 2015 at 06:27, Julien Charbon <j...@freebsd.org> wrote: >> On 26/05/14 15:36, Julien Charbon wrote: >> [...] >> >> For people interested about this short-lived TCP connection scalability >> effort, you can subscribe to the review of our latest (and biggest so >> far) change: >> >> Decompose TCP INP_INFO lock to increase short-lived connections scalability >> https://reviews.freebsd.org/D2599 >> >> The main goal of this review is ideally to start the rough discussion >> before BSDCan (and then discuss details in person at BSDCan), and ease >> tests by other people with more exotic configurations (thanks Adrian for >> your early tests). This patch still improves the short-lived TCP >> connection rate (setup and teardown) from 60k/sec to 150k/sec. > > I'm using this in our testing lab at work. I get to around 105k/sec, > but I think that's primarily because of other lock contention in the > kernel (things doing unnecessary ioctl()s.)
Nice, always good to see other people running/testing changes. On pure number size, I would add that benchmarks are basically lies [:)] as you get highest numbers from ideal conditions that are never met in production. Then, more interesting(/less lie) part is the relative improvement you get using the exact same setup and for us it is currently from 60k/sec to 150k/sec. As example, on our older hardware/older configuration it was from 35k/sec to 105k/sec. My 2 cents. -- Julien
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