| To: | sfeldma@xxxxxxxxx |
|---|---|
| Subject: | Re: [E1000-devel] Transmission limit |
| From: | jamal <hadi@xxxxxxxxxx> |
| Date: | 03 Dec 2004 08:24:49 -0500 |
| Cc: | Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>, Robert Olsson <Robert.Olsson@xxxxxxxxxxx>, P@xxxxxxxxxxxxxx, mellia@xxxxxxxxxxxxxxxxxxxx, e1000-devel@xxxxxxxxxxxxxxxxxxxxx, Jorge Manuel Finochietto <jorge.finochietto@xxxxxxxxx>, Giulio Galante <galante@xxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <1101967983.4782.9.camel@localhost.localdomain> |
| Organization: | jamalopolous |
| References: | <1101484740.24742.213.camel@mellia.lipar.polito.it> <41A76085.7000105@draigBrady.com> <1101499285.1079.45.camel@jzny.localdomain> <16811.8052.678955.795327@robur.slu.se> <1101821501.1043.43.camel@jzny.localdomain> <20041130134600.GA31515@xi.wantstofly.org> <1101824754.1044.126.camel@jzny.localdomain> <20041201001107.GE4203@xi.wantstofly.org> <1101863399.4663.54.camel@sfeldma-mobl.dsl-verizon.net> <20041201182943.GA14470@xi.wantstofly.org> <20041201213550.GF14470@xi.wantstofly.org> <1101967983.4782.9.camel@localhost.localdomain> |
| Reply-to: | hadi@xxxxxxxxxx |
| Sender: | netdev-bounce@xxxxxxxxxxx |
On Thu, 2004-12-02 at 01:13, Scott Feldman wrote: > On Wed, 2004-12-01 at 13:35, Lennert Buytenhek wrote: > > Pretty graph attached. From ~220B packets or so it does wire speed, but > > there's still an odd drop in performance around 256B packets (which is > > also there without your patch.) From 350B packets or so, performance is > > identical with or without your patch (wire speed.) > > Seems this is helping PCI nics but not PCI-X. I was using PCI 32/33. > Can't explain the dip around 256B. > Interesting thought. I also saw improvements with my batching patch for PCI 32/32 but nothing noticeable in PCI-X 64/66. cheers, jamal |
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