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Peter Humphrey <prh@××××××××××.uk> skribis: |
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> It's just occurred to me to question this kernel configuration option, which |
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> is under Processor Type and Features. |
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> |
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> We used to have to choose from 100, 250 and 1000 Hz, but recently 300 Hz has |
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> been added, with the following Help text: |
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> |
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> ---- |
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> CONFIG_HZ_300: |
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> 300 Hz is a good compromise choice allowing server performance while also |
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> showing good interactive responsiveness even on SMP and NUMA systems and |
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> exactly dividing by both PAL and NTSC frame rates for video and multimedia |
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> work. |
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> ---- |
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> |
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> At first I followed the advice without thought, but on reflection it occurs |
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> to me to wonder about the truth of this statement. I suspect it's only true |
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> in North America, northern Japan and a few other places, where the public |
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> supply frequency is 60 Hz. In the rest of the world, with its 50 Hz, I |
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> think 250 would be a better choice. |
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> |
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> I also think it would be more accurate to say "dividing exactly into" |
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> than "by". |
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> |
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> Would anyone like to comment? |
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|
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It should say 'divide by', and the frame rate is a property of the |
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television signal, not the power supply. |
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|
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|
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-- |
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Barry.SCHWARTZ ĉe chemoelectric punkto org http://chemoelectric.org |
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Free stuff / Senpagaj varoj: http://crudfactory.com |
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'Democracies don't war; democracies are peaceful countries.' - Bush |
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(http://www.whitehouse.gov/news/releases/2005/12/20051219-2.html) |
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