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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Bell Labs or Microsoft security?
RAS> Date: Wed, 29 Jan 2003 08:18:45 -0500
RAS> From: Richard A Steenbergen
RAS> Possibly that bounds checking is an incredible cpu suck,
If you check before each byte. Checking for sufficient space
first ("is there room for a 245-byte string?") is much faster.
Besides, looking at all the bloated code using indirect function
calls[*] and crappy code using poor algorithms... is speed really
a concern?
[*] Try profiling indirect function calls on x86, especially
newer cores. Such instructions carry a stiff penalty... but
there's no shortage of virtual functions in certain software.
(Think: OWL and MFC libraries.)
Eddy
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