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- To: slitaz@xxxxxxxxxxxxxxxxxxx
- Subject: Re: Packages build, news and bugs
- From: Alexander Medvedev <devl547@xxxxxxxxx>
- Date: Sun, 22 May 2011 11:50:19 +0400
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>Less perf on what ?
Runtime performance. -Os disables code and data alignment (-falign-*), that saves space, but decreases speed on CPUs without efficient unaligned access.
According to google and some testing not long ago on Phoronix and
linux.org.ru, it is a compromise between ~10% saved space or 10% of performance.
A small suggestion - try playing with LTO and l1/l2 cache size parameteres.