Re: [RFC PATCH net-2.6.25 uncompilable] [TCP]: Avoid breaking GSOed skbs when SACKed one-by-one
From: David Miller <davem@davemloft.net>
Date: 2007-12-12 23:38:14
From: "Lachlan Andrew" <redacted> Date: Wed, 12 Dec 2007 15:35:49 -0800
I thought that a TSC read was fairly cheap.
The TSC is cheap, but on the vast majority of systems it isn't usable as a stable time source, and we have to read the ACPI timer instead.