Re: TCP transmit performance regression

Eric Dumazet
2012-07-10T14:46:04Z

On Tue, 2012-07-10 at 22:22 +0800, Ming Lei wrote:

> Looks single page allocation won't put too much pressure on MM, that is
> why I suggested to avoid copy if the skb buffer size is less or equal one
> page. Anyway, unnecessary copy will increase computation and consume power.

AFAIK this long thread started with drivers/net/usb/smsc95xx.c using
32KB buffers, thats order-3 pages, not 'single page'

Definitely very wrong. You can try to claim the contrary, it wont be
wise.