Date: Mon, 4 Jan 2016 23:41:35 +0800 (CST) From: HuanHuan <mailhuanhuan@gmail.com> To: Julian Elischer <julian@freebsd.org> Cc: HuanHuan <mailhuanhuan@gmail.com>, Rui Paulo <rpaulo@me.com>, freebsd-net@freebsd.org, Luigi Rizzo <rizzo@iet.unipi.it> Subject: Re: Does FreeBSD have sendmmsg or recvmmsg system calls? Message-ID: <alpine.BSF.2.20.1601042339460.84701@localhost.my.domain> In-Reply-To: <568A0FC6.8050107@freebsd.org> References: <alpine.BSF.2.20.1601031833130.84701@localhost.my.domain> <1451841004.10139.34.camel@me.com> <alpine.BSF.2.20.1601040524170.84701@localhost.my.domain> <568A0FC6.8050107@freebsd.org>
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Thank you for pointing out that. I will try to rewrite some (if I could), like the the ASCII path that received. (It may reduce some time or not? But just try....) On Mon, 4 Jan 2016, Julian Elischer wrote: > On 4/01/2016 5:32 AM, HuanHuan wrote: >> Hi Rui, >> >> There are no existing applications, but these two calls are for developing >> new application on 10G links. >> >> Currently I use netgraph, especially ng_socket node. And a simple >> recvfrom() on a ng_socket costs ~5us or so (200K per second). And there are >> many netgraph sockets. So it's good to reduce the time by ultilizing >> send/recvmmsg() if there are these two syscalls. Even a simple-loop like >> implmentation like linux's will be good as Luigi has suggested. > > As the writer of netgraph I would like to point out that it was never > designed to be a high throughput service. > I'm happy thought that it CAN be used at these speeds but I designed it for > prototyping and for serial line speeds. > The idea was that once something was prototyped out, one would take the code > from all the modules used and create > a special purpose module that dd what you need. > The fact that people have not needed the last step is gratifying but > surprising. > >> >> On Sun, 3 Jan 2016, Rui Paulo wrote: >> >>> On Sun, 2016-01-03 at 18:34 +0800, HuanHuan wrote: >>>> NetBSD 7.0 has just introduced these two syscalls. >>>> And Linux also has them. >>>> >>>> Does FreeBSD have them? Or plan to support them in the future? >>> >>> FreeBSD does not have them. It doesn't seem especially hard to >>> implement, though. Do you know any major application already using >>> them? >>> >>> -- >>> Rui Paulo >>> >>> >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> >> > >
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