From: Benjamin LaHaise <[EMAIL PROTECTED]>
Date: Tue, 28 Feb 2006 08:32:37 -0800
> The patch below reworks socket.c to use fget_light() in place of fget()
> for the various networking syscalls. This is of particular value with
> SMP kernels running on the P4 as the memory barriers the atomic ops on
> the file counter causes result in the CPU having to wait for quite a few
> memory transactions to complete (we can have up to ~128 instructions in
> flight).
>
> On the default netperf (which uses fairly large buffers) the increase is
> around 25Mbit/s (on 8000Mbit/s). Using 'netperf -- -m 64' performance goes
> to ~284Mbit/s from 247Mbit/s, which is pretty substantial.
>
> Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise>
(missing @intel.com in signed-off-line)
This patch is nice but it doesn't apply because of all the changes
I made to net/socket.c to handlne -ENFILE/-EMFILE correctly.
Could you please redo your patch against:
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.17.git
and fixup the signed-off-line.
Thanks a lot Ben.
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
