Subject: Re: indirect calls [Re: issues with com and non-PCI platforms.... a proposal]
To: None <email@example.com>
From: Jason Thorpe <firstname.lastname@example.org>
Date: 03/14/2006 19:35:27
On Mar 14, 2006, at 12:10 PM, Pavel Cahyna wrote:
> What can be so slow? An indirect function call, or function calls in
> general? And which architectures especially suffer from expensive
> function calls?
On some architectures, an indirect call flushes the branch prediction
buffer, for example. (The Xscale is one such architecture).