>From what I've read on the subject, the bottom line is that the Intel compiler produces code highly optimized for primarily for pentium cpus, and secondarily for AMD, while gcc does not do as refined a job. In other words, the Intel compiler used for windows OS and Programs is more specialized and mature for these cpus than gcc, thus the better overall performance. At least this seems to be what a lot of experts are saying.
Intel has released a compiler for Linux, but I know of no results being publicized, as yet. I totally agree on keeping the kernel lean as possible, and reducing unneeded services at boot up as a primary way to increase performance. My philosopy is why not do everything you can. Robert Crawford On Tuesday 25 February 2003 05:01 pm, Joe Braddock wrote: > -------Original Message------- > From: flacycads <[EMAIL PROTECTED]> > Sent: 02/25/03 05:10 PM > To: [EMAIL PROTECTED] > Subject: Re: [expert] Mandrake Out of Control? > > <snip> > Anyone who dual boots with windows on the same hardware knows that windows > > performance is noticably better than Linux, and that this is most likely > due > to the highly x86 optimized Intel compiler. > > Given that, it's going to be hard to convince me that trying to optimize > Linux and gcc for newer cpus is not worth the trouble. However, I'll keep > an > open mind on the subject, and I'm certainly not an expert. > > Robert Crawford > <snip> > > Robert, > > I thought anything after Windows NT runs on Pentium and above (or K6 and > above if you use AMD). If that's the case, then it's not anymore optimized > than Mandrake, so any increased performance on a Windows box is not do to > optimization. > > If you truly want to see what effect optimization may have for your system, > recompile the kernel and run some benchmarks (actually before and after). > Since everything else runs on top of the kernel, it recompiling it should > give the most bang for your buck. I can tell you, though, that on my > systems (K6-450 and Duron 1.3ghz), removing stuff that's not used in the > kernel has a bigger impact on performance than optimizing for the CPU > (maybe it has something to do with AMD vs Intel, I don't know, but the chip > optimization seemed to have little impact). > > Joeb
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