At 06:53 PM 10/8/2007, Jeff Garzik wrote:
David Miller wrote:
From: Jeff Garzik [EMAIL PROTECTED]
Date: Mon, 08 Oct 2007 10:22:28 -0400
In terms of overall parallelization, both for TX as well as RX, my gut
feeling is that we want to move towards an MSI-X, multi-core friendly
model where
On Mon, 2007-08-10 at 10:22 -0400, Jeff Garzik wrote:
Any chance the NIC hardware could provide that guarantee?
If you can get the scheduling/dequeuing to run on one CPU (as we do
today) it should work; alternatively you can totaly bypass the qdisc
subystem and go direct to the hardware for
From: Jeff Garzik [EMAIL PROTECTED]
Date: Mon, 08 Oct 2007 10:22:28 -0400
In terms of overall parallelization, both for TX as well as RX, my gut
feeling is that we want to move towards an MSI-X, multi-core friendly
model where packets are LIKELY to be sent and received by the same set
of
On Mon, 2007-08-10 at 14:11 -0700, David Miller wrote:
The problem is that the packet schedulers want global guarantees
on packet ordering, not flow centric ones.
That is the issue Jamal is concerned about.
indeed, thank you for giving it better wording.
The more I think about it, the
From: jamal [EMAIL PROTECTED]
Date: Mon, 08 Oct 2007 18:30:18 -0400
Very quickly there are no more packets for it to dequeue from the
qdisc or the driver is stoped and it has to get out of there. If you
dont have any interupt tied to a specific cpu then you can have many
cpus enter and leave
Multiply whatever effect you think you might be able to
measure due to that on your 2 or 4 way system, and multiple
it up to 64 cpus or so for machines I am using. This is
where machines are going, and is going to become the norm.
That along with speeds going to 10 GbE with multiple Tx/Rx
On Mon, 2007-08-10 at 15:33 -0700, David Miller wrote:
Multiply whatever effect you think you might be able to measure due to
that on your 2 or 4 way system, and multiple it up to 64 cpus or so
for machines I am using. This is where machines are going, and is
going to become the norm.
Yes,
David Miller wrote:
From: Jeff Garzik [EMAIL PROTECTED]
Date: Mon, 08 Oct 2007 10:22:28 -0400
In terms of overall parallelization, both for TX as well as RX, my gut
feeling is that we want to move towards an MSI-X, multi-core friendly
model where packets are LIKELY to be sent and received by
