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Date: Thu, 19 Dec 2002 15:57:06 +0100 (CET)
From: bart@etpmod.phys.tue.nl
Reply-To: bart@etpmod.phys.tue.nl
Subject: Re: Intel P6 vs P7 system call performance
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On 19 Dec, billyrose@billyrose.net wrote:
> long_call:
>         pushl $0xfffff000
>         ret
> 

A ret(urn) to an address that wasn't put on the stack by a call
severly confuses the branch prediction on many processors.


-- 
Bart Hartgers - TUE Eindhoven 
http://plasimo.phys.tue.nl/bart/contact.html
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