Messages in this thread | | | Subject | Re: zero-copy TCP | From | Jes Sorensen <> | Date | 02 Sep 2000 23:20:48 +0200 |
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>>>>> "Ingo" == Ingo Molnar <mingo@elte.hu> writes:
Ingo> On Sat, 2 Sep 2000, Dan Maas wrote:
>> There are various other tricks that can be done to speed up network >> servers, like passing files directly from the buffer cache to the >> network card. This one is currently frowned upon by the Linux >> community, [...]
Ingo> FYI, the TUX patch (released yesterday) includes a lightweight Ingo> zero-copy TCP implementation for the 2.4 Linux kernel. The Ingo> interface is not yet exported to user-space (simply because TUX Ingo> uses it from kernel-space so the user-space bits were not Ingo> needed), but the network driver framework and TCP-stack bits are Ingo> there, so the hard part is done. The two most widely used Ingo> gigabit drivers are 'converted' to support zero-copy, the Ingo> SysKonnect and the Acenic driver (the modifications are well Ingo> tested). I plan to add the user-space bits in the near future.
Could you comment a bit on the design you used or do I have to go read the code? Some of us had a good chat at OLS about how to do zero copy TCP xmits by kiobufifying the skb's.
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