Messages in this thread | | | Subject | Re: Re: new icc kernel patch available (with kernel PGO) | From | <> | Date | Mon, 7 Jun 2004 17:52:02 +0200 |
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Hi,
I published some preliminary results in the German Linux Magazine, which are copyrighted now. Sorry. Some hints: maximum performance gain approx. 40%, avg. perf. gain: approx. 8%; computed by LMBench+OProfile (accurate CPU cycle measurement, 10us timer resolution). These results were taken from a "general kernel", i.e. widespread kernel load (foreground and background activities, networking, filesystems, drivers, etc.) during kernel PGO instrumentalization. The big advantage of kernel PGO: you can create your own specialized kernels for dedicated tasks (3 phase compilation scheme: primary compilation, kernel profiling (PGO), feedback compilation).
Jan Dittmer <j.dittmer@portrix.net> schrieb am 07.06.2004, 16:51:06: > Zitat von ingo@pyrillion.org: > > v0.9.1: please check http://www.pyrillion.org/linuxkernelpatch.html for > > a new kernel patch including kernel PGO (profile guided optimization) > > support, covers 2.6.3 - 2.6.6 (please note: 2.6.3, 2.6.4 deprecated). > > Do you have any benchmark numbers that show any improvement? > > Jan > > -- > j.dittmer@portrix.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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