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So you are thinking the asymmetry was a processing problem?
Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net ---------- Original Message ----------- From: "Paul Hendry" <[EMAIL PROTECTED]> To: "'WISPA General List'" <wireless@wispa.org> Sent: Thu, 20 Oct 2005 13:10:44 +0100 Subject: RE: [WISPA] Atheros speed WRAP vs RB532 > UPDATE > > Just tested with 2 P4's at each end of a StarVX link running on the 2 port > WAR (266Mhz CPU). Bi-direction test using TCP, random data (uncompressible) > shows 35-36mbps in both directions (aggregate throughput of 70-72mbps). > These figures do not take into account TCP acknowledgements so the real > throughput is a little higher. The StarVX's report throughput of around > 37-39mbps in both rx and tx. > > Many thanks, > > P. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Paul Hendry > Sent: 20 October 2005 09:32 > To: 'WISPA General List' > Subject: RE: [WISPA] Atheros speed WRAP vs RB532 > > The first tests I did where with a routed topology through 2 StarVX routers > but these most recent tests is with all interfaces bridged and the StarVX > client as a wireless client bridge which I believe is based on WDS. > > If your asymmetric performance with the RB532's is between 12 and 18mbps I > wouldn't say your seeing similar performance as I am seeing 40mbps and > 27.7mbps when transmitting and receiving at the same time using random > (uncompressible) tcp based data. > > The tests are based on default packet sizes however, we run M3P (ip packing) > between the Mikrotiks and when testing with small packets (50-100byte) I see > the same results. The only problem with M3P is that it adds 15ms of delay in > each direction under low loads. This means you see pings with a round trip > time of +30ms. This does however improve when more and more traffic is > passed over the link as M3P either waits for 1500bytes of traffic or 15ms to > expire (which ever comes first). > > The difference in upload and download speed I have so far put down to one > system being a 2.4GHz CPU and the other being a 533MHz CPU. Hopefully I can > test with 2 P4's later today. > > Cheers, > > P. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of David E. Smith > Sent: 20 October 2005 04:34 > To: WISPA General List > Subject: RE: [WISPA] Atheros speed WRAP vs RB532 > > Paul Hendry wrote: > > Managed to scavenge a P4 system together for testing purposes. > > Hey, as long as you're doubling as my personal IT lab... :) > > My tests so far have just been traditional AP/client mode, and I'm seeing > the same sort of asymmetrical performance you are. With a pair of RB532s, > depending on the "random-data" and packet size settings, I'm floating > between 12 and 18Mbps. Thing is, I always get better performance with > traffic going client-to-AP than AP-to-client. > > Have you, or will you, test with WDS mode? If you've already done so, are > you getting better or worse performance that way? (I may or may not be > able to try that particular setup before I leave for vacation on Friday. > Probably not, because I've not worked with RouterOS' wireless stuff before > and I may not be able to figure out how to set it up. :) > > Also, are you using the default packet sizes or have you been playing with > those too? At least in wired network testing I've done before, the real > worst-case scenario involves using the smallest packets you can get away > with (because of the extra overhead in packet creation). > > David Smith > MVN.net > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.12.4/142 - Release Date: 18/10/2005 > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 19/10/2005 > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 19/10/2005 > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 19/10/2005 > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ ------- End of Original Message ------- |
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