NetMap (http://info.iet.unipi.it/~luigi/netmap/) in OpenBSD would be a
great idea. It's a simple API for solving an important problem, at least
its core parts.
Is OBSD's kernel structure suited as it is for NetMap?
What's the interest out there for NetMap on OBSD?
Thanks,
Mikael
* Mikael mikael.tr...@gmail.com [2014-10-14 10:24]:
NetMap (http://info.iet.unipi.it/~luigi/netmap/) in OpenBSD would be a
great idea.
for what?
to create even more broken userland networking stuff?
We kinda like our stack.
What's the interest out there for NetMap on OBSD?
roughly somewhere
Dear Henning,
Thank you for your thoughtful response.
2014-10-14 11:02 GMT+02:00 Henning Brauer hb-open...@ml.bsws.de:
* Mikael mikael.tr...@gmail.com [2014-10-14 10:24]:
NetMap (http://info.iet.unipi.it/~luigi/netmap/) in OpenBSD would be a
great idea.
We kinda like our stack
/netmap/) in OpenBSD would be a
great idea.
We kinda like our stack.
Of course, OBSD has a very good stack as it is, but it has no NetMap
functionality i.e. there's no way for a userland application to do high
speed packet-level IO.
for what?
There is a whole world of need
* Mikael mikael.tr...@gmail.com [2014-10-14 14:57]:
2014-10-14 11:02 GMT+02:00 Henning Brauer hb-open...@ml.bsws.de:
* Mikael mikael.tr...@gmail.com [2014-10-14 10:24]:
NetMap (http://info.iet.unipi.it/~luigi/netmap/) in OpenBSD would be a
great idea.
We kinda like our stack
2014-10-14 16:15 GMT+02:00 Henning Brauer hb-open...@ml.bsws.de:
Of course, OBSD has a very good stack as it is, but it has no NetMap
functionality
yeah, and that is good. netmap bypasses teh stack and you look at
reimplementing the stack in userland, repeating mistakes, bugs and
whatnot
On Oct 14 16:33:23, mikael.tr...@gmail.com wrote:
Most devices in a system can be accessed with good performance from
userland as it is now, for instance block devices, USB, serial ports, video
and audio.
Repeat after me: userland is not supposed to access devices.
It is supposed to talk to a
* Mikael mikael.tr...@gmail.com [2014-10-14 16:35]:
2014-10-14 16:15 GMT+02:00 Henning Brauer hb-open...@ml.bsws.de:
i.e. there's no way for a userland application to do high speed
packet-level IO.
there are plenty of methods actually.
Like what?
bpf, for example.
but since you still
* Henning Brauer hb-open...@ml.bsws.de [2014-10-14 20:52]:
netmap is luigi's research framework, and he used it for some cool
research an sure will do so more in the future. no more, no less.
I should clarify: I am aware of a few use cases that profit enormously
from netmap.
Let's look at what
Sorry, replied to fast and to OP only.
Below is one use case and a lot o things that Henning have said, put from
my point of view.
-- Forwarded message --
From: Raimundo Santos rait...@gmail.com
Date: 14 October 2014 15:02
Subject: Re: NetMap in OpenBSD
To: Mikael mikael.tr
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