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Nikos Chantziaras wrote: |
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> On 12/19/2011 08:15 AM, Dale wrote: |
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>> Pandu Poluan wrote: |
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>>> |
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>>> Kind of like what I always do when I switch from -march=nocona to |
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>>> -march=native. (Usually I use -march=nocona to ensure seamless VM |
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>>> migration on my XenServer-equipped boxen, but for some VMs, i.e., |
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>>> those requiring me to wring out every last drop of performance, I go |
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>>> native.) |
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>>> |
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>>> That said, if you want to experience fully the "GCC Graphite" |
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>>> optimizations, you'll also want to do emerge -ev ;-) |
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>> |
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>> |
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>> Is Graphite worthwhile on a desktop system or is it better suited for |
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>> servers or both? |
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> |
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> This isn't something that even remotely has anything to do with |
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> servers or desktops. Just like -O2 does not magically work better on |
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> servers. |
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> |
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> |
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Sounds like it may work on both then. That's sort of what I was |
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thinking but wasn't sure. |
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>> I found this but still not sure what it is intended for: |
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>> |
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>> http://gcc.gnu.org/wiki/Graphite/4.5 |
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> |
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> It's an optimization that produces faster running executables. Are |
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> you interested in *how* it works :-) |
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> |
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> |
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From what I read it makes some processes run in parallel instead of |
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serial or one at a time. Some think it is meaningless but some think it |
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is awesome. I don't know what to think since I have not used it or |
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compared the differences. |
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>> Are there any reasons to leave this be for a while? You know, bugs or |
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>> packages that don't work with it? |
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> |
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> Just like with any other optimization switch, there can be bugs. If |
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> Gentoo says it doesn't support graphite, then I'd stay away from it |
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> because Gentoo devs might not listen to your bug reports if you use |
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> it. I don't know if they support it or not though. |
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> |
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That would be another good thing to know. I don't file many bug reports |
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but if something breaks and it needs one, I do file them. This may be |
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like good wine. It may need to rest a while longer unless someone else |
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knows it is supported and works well. I got a good install and I don't |
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want to break it. |
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|
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Dale |
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:-) :-) |
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-- |
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I am only responsible for what I said ... Not for what you understood or how you interpreted my words! |
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|
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Miss the compile output? Hint: |
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EMERGE_DEFAULT_OPTS="--quiet-build=n" |
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