Ok, I found it! GCC needs additional option for compiling -fprofile-generate http://stackoverflow.com/questions/1851299/is-it-possible-to-tell-the-branch-predictor-how-likely-it-is-to-follow-the-branch And then those examples are working.
Sorry for warning. Anton On Tue, Nov 30, 2010 at 11:59 AM, Anton Gladky <[email protected]>wrote: > Hi, (Vaclav) > > in experimental SubDomain branch > http://bazaar.launchpad.net/~yade-dev/yade/subdomains/revision/2568<http://bazaar.launchpad.net/%7Eyade-dev/yade/subdomains/revision/2568>you > are using likely/unlikely expressions, which should help to produce > optimized code. > But have you tried those examples? http://kerneltrap.org/node/4705 > > As for me. in both examples the produced binary code is completely > identical. Could you not try those? > > Thanks > > Anton > >
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