Em 08-03-2011 14:01, Gennady Kupava escreveu:
Hi, list.

Today I noticed the following change in SHR:
http://git.openembedded.org/cgit.cgi/openembedded/commit/?id=1516588acd3c4b4dd4add71d06ab8ce0d1bafa02
 (by Denis 'GNUtoo' Carikli<gnu...@no-log.org>) and decided to lmbench it.

Here are results: http://www.bsdmn.com/lmbench/unwind_summary.txt

You can see comparison of:

34def ->  kernel with CONFIG_FRAME_POINTER
unwind ->  kernel with CONFIG_ARM_UNWIND
default ->  for reference, old debugging kernel

The unwind option provide clear benefit of 5%-10% in almost every area.

Nice spot Denis!

It does feel faster!

OpenMoko Freerunner, probably the only "obsolete" phone that keeps getting better :)

Rui

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