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Re: to reduce footprint
- From: Lin George <george4academic at yahoo dot com>
- To: Ian Lance Taylor <iant at google dot com>
- Cc: binutils at sourceware dot org
- Date: Thu, 21 Dec 2006 09:13:59 -0800 (PST)
- Subject: Re: to reduce footprint
Thanks Ian, do you mean using -Os or -O2 is an exception of speed/size trade-off, which will both have good performance nad have smaller size?
regards,
George
----- Original Message ----
From: Ian Lance Taylor <iant@google.com>
To: Lin George <george4academic@yahoo.com>
Cc: binutils@sourceware.org
Sent: Thursday, December 21, 2006 1:40:05 AM
Subject: Re: to reduce footprint
Lin George <george4academic@yahoo.com> writes:
> Thanks Ian. After reading the manual for -Os, it seems that using -Os can both achieve the better performance and reduce the footprint. Is that correct?
> If yes, it is amazing that both size can be reduced the speed is faster. Because I think speed and size are balanced parameters -- if you increase speed, the footprint will be worse (bigger). Any comments?
>
> BTW: Quote from manual > -Os is ok to optimize for speed.
-Os is equivalent to -O2, except that when there is a time/space
tradeoff it optimizes to reduce space.
Ian
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