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> Well, I suppose that's part of the problem. What does O3 improve? |
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I cannot speak for the -03 from gcc specifically, but most |
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optimizations tend to increase the processes within the CPU. Further, |
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for them to help, the compiler tends to need to, at compile time, know |
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how the code will run. As such, it does almost nothing for event-driven |
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code like the entire X-windows system. Further, I would like to see the |
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linux computer today which has a processing problem when it comes to X. |
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The disk-access times to load binaries far overshadow anything |
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processor related in all computers I have seen. |
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My suggestion to the general user: Get raided, super-fast scsi disks and |
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a mobo with low-latency memory if you want a truly fast computer. |
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