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On 23/02/12 21:42, Michael Mol wrote: |
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> On Thu, Feb 23, 2012 at 2:36 PM, Nikos Chantziaras<realnc@×××××.de> wrote: |
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>> On 23/02/12 12:44, Mick wrote: |
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>>> The irony is that older boxen which would benefit most from building from |
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>>> source are constrained in resources to achieve this and have to resort to |
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>>> installing bin packages. |
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>> |
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>> I doubt that the bin package will be slower than the one compiled from |
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>> source. I predict the reverse, in fact. The bin package will perform |
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>> better. |
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> |
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> That seems a strange prediction. What drives that hunch? |
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The PGO optimized build that Mozilla is shipping. You can also build |
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with PGO from source, but that means building FF *twice* in a row (by |
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enabling the "pgo" USE flag). I doubt that with the old laptop anyone |
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is building FF twice with PGO, and that means that the -bin package |
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should be faster. |
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|
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Furthermore, FF is build using its own CFLAGS. They are the same in the |
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source build as well as in the -bin package. The only difference is |
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probably the -march option. And that doesn't make much difference to |
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begin with (after -march=i686, gains are very minimal). |
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