From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,5009aef8d784ed0 X-Google-Attributes: gid103376,public X-Google-Thread: ffc1e,5009aef8d784ed0 X-Google-Attributes: gidffc1e,public From: Bart Smaalders Subject: Re: 3 mill messages/s over UDP sockets? Date: 1997/03/07 Message-ID: <33208DD3.61B7@eng.sun.com>#1/1 X-Deja-AN: 223876221 References: <331FDF2A.7EF1750E@systek.no> Organization: Sun Microsystems, Inc Newsgroups: comp.programming.threads,comp.lang.ada Date: 1997-03-07T00:00:00+00:00 List-Id: That's 300 million bytes/sec. Better tell the Gb ethernet folks they've been scooped. And advise them as to what the inter-packet delay is supposed to be... clearly the standard value is too conservative ;-). I'd check to make sure you didn't just fill a 120 deep DMA operation request buffer - or some even simpler error path was taken. - Bart Arne Riiber wrote: > > Using the gnat-3.07 Ada compiler (w/pthreads1.60b4) and Linux 2.0 > on a 133Mhz Pentium, two ada tasks could send/receive about 120 > 100-byte messages over UDP sockets in 0.04 milliseconds. This gives > about 3 million messages per second. > > It was not possible to send/receive more than about 200 messages, > even if the socket send buffer size was set to 50K with setsockopt(). > > Anyone that can explain the results (is it related to Pthreads or Gnat?) > And better, what is needed to set up the socket buffer so the buffer > size is 50K (as on non-threaded socket calls), so more messages > can be sent? > > -Arne- > > -- > -------------------------------------------------- > Arne Riiber http://home.sn.no/~riiber > System Teknologi AS http://www.systek.no > -------------------------------------------------- -- Bart Smaalders Solaris Clustering SunSoft barts@cyber.eng.sun.com (415) 786-5335 MS UMPK17-301 http://playground.sun.com/~barts 2550 Garcia Ave Mt View, CA 94043-1100