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On Thursday 15 December 2005 19:38, John Myers wrote: |
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> On Thursday 15 December 2005 04:48, Patrick Lauer wrote: |
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> > Hi all, |
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> > |
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> > I was wondering if there are any sane ways to optimize the performance |
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> > of a Gentoo system. |
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> > Overoptimization (the well known "-O9 -fomgomg" CFLAGS etc.) tends to |
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> > make things unstable, which is of course not what we want. The "easy" |
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> > way out would be buying faster hardware, but that is usually not an |
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> > option ;-) |
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> > |
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> > So ... what can be done to get the stable maximum out of your hardware? |
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> |
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> This should be obvious, but don't USE=debug globally. Last time I did that, |
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> it made my Athlon64 3400+ with 1G of RAM feel like the 300MHz PII with 192M |
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> of RAM I have. |
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Just to add. This is not so much related to debugging information in the |
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library files (what gdb can use). That information never makes it from disk |
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so is not that much of a speed issue (esp. if it is split out). It is however |
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related to the debug use flag enabling various kinds of debugging checks, |
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output and whatnot in software. Those tests are useful for debugging, but in |
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the case of tests are normally disabled because of the performance hit they |
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carry. |
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|
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Paul |
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|
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-- |
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Paul de Vrieze |
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Gentoo Developer |
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Mail: pauldv@g.o |
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Homepage: http://www.devrieze.net |
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