Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0-1

Christoph Hellwig (hch@caldera.de)
Tue, 9 Jan 2001 18:53:10 +0100


On Tue, Jan 09, 2001 at 10:38:30AM -0500, Benjamin C.R. LaHaise wrote:
> What you're completely ignoring is that sendpages is lacking a huge amount
> of functionality that is *needed*. I can't implement clean async io on
> top of sendpages -- it'll require keeping 1 task around per outstanding
> io, which is exactly the bottleneck we're trying to work around.

Yepp. That's why I proposed to ue rw_kiovec. Currently Alexy seems
to have an own hack for socket-only asynch IO with some COW semantics
for the userlevel buffers, but I would much prefer a generic version...

Christoph

P.S. Any chance to find a new version of your aio-patch somewhere?

-- 
Of course it doesn't work. We've performed a software upgrade.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/