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On Sun, Jun 8, 2008 at 6:04 PM, Hanno Böck <hanno@g.o> wrote: |
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> I got this bug and as I don't know if this is correct what the user says (no |
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> idea about smp), I'm posting this here for comments: |
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> |
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> https://bugs.gentoo.org/show_bug.cgi?id=224729 |
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Looks like there are 3 possible uses of the threads/smp USE flags: |
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1) Add support for a threading API in a library/language (for example |
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in dev-lisp/sbcl) |
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|
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2) Add support for threading in an application (www-servers/apache, for exmple) |
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|
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3) Add support for a multi-processor machine -- this is different from |
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(2) in that the application doesn't really gain anything if this is |
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used on a uni-processor machine (sys-cluster/charm seems to fall in |
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this category) |
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|
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I guess it would be consistent to use "threads" for (1) and (2), and |
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"smp" for (3). |
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Now, as for Gimp, grokking through the sources shows that "--with-mp" |
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basically lets some processing stuff run in separate threads. This is |
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clearly only useful on SMT/CMP/SMP machines, so I think USE=smp is |
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fine. |
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|
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The user's complaint could be valid, though. Perhaps "smp" should be a |
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global USE flag. |
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Cheers, |
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-- |
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Arun Raghavan |
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(http://nemesis.accosted.net) |
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v2sw5Chw4+5ln4pr6$OFck2ma4+9u8w3+1!m?l7+9GSCKi056 |
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e6+9i4b8/9HTAen4+5g4/8APa2Xs8r1/2p5-8 hackerkey.com |
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-- |
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