Date: Thu, 26 Feb 2004 22:40:43 -0800 (PST) From: Aloha Guy <alohaguy123@yahoo.com> To: Charles Swiger <cswiger@mac.com> Cc: Free BSD Questions list <freebsd-questions@freebsd.org> Subject: Re: FreeBSD box as router adding latency Message-ID: <20040227064043.43033.qmail@web41314.mail.yahoo.com> In-Reply-To: <F4BD1F87-68B2-11D8-870A-003065ABFD92@mac.com>
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Charles Swiger <cswiger@mac.com> wrote: On Feb 26, 2004, at 5:59 PM, Aloha Guy wrote: > Charles Swiger wrote: >> There's your issue right there: if you care about the millisecond >> level >> granularity of network traffic going by this router, you ought to set >> HZ to 1000 as documented in "man dummynet". [ ... ] > Knew I forgot to read something. I guess I forgot all about dummynet > is the one doing the traffic shaping as I never used traffic shaping > on the other boxes when they were used as both Ethernet and T1 > routers. I've always had NMBCLUSERS set to 32768 which I assume is > fine. Thats a lot of NMBCLUSTERS, but if you've got the memory you should be okay. > Also, is there a way to use two NICs like a xl0 and a fxp0 and bond > them together with just one IP? Yes, netgraph. See "man ng_one2many".... I actually had the NMBCLUSTERS set that way even with 128MB boxes without issues but the box in question has 2GB of ram so it's not much of a big deal. I tried the ng_one2many and it did help bring things closer to 80Mbps from 60Mbps. I guess the HD is the bottleneck as it's only a notebook and even with the 7200rpm 60GB 2.5" drive, the sustained transfer rate is limited. Tried the HZ 1000 setting and recompiled a new kernel but it didn't really seem to do anything at all. I'm wondering what's the highest setting it will work with.Thanks,John --------------------------------- Do you Yahoo!? Get better spam protection with Yahoo! Mail
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