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Thread: Thread affinity HT. id ?
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15th July 2009 18:47 #1
Thread affinity HT. id ?
,
multithreaded . , OS- . Core i7 920, 4 hyper-threading = 8 . , "" ( 8 , - 4 ). scheduler-a , ( ) ( Linux- -, Windows (XP 64 SP2) . ).
, SetAffinity , CPU. : CPU (.. id 0 7 .) , 4- ? SetThreadAffinityMask pthread_setaffinity_np id-, :
* Linux, [0+4], [1+5], [2+6], [3+7]. , max performance 4 , 0, 1, 2 3.
* Windows [0+1], [2+3], [4+5], [6+7]. 0, 2, 4, 6.
* OSX
, spec- , ? CPUID function 0xb, APIC id-,

btw, , "" (. 0, 2, 5 7), , , ., . .
"640K ught to be enough for anybody" - Bill Gates, 1981
::Machine specs::Fract::AGG::::Baileys::blog::YouTube channel
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16th July 2009 07:44 #2Registered User
Join Date: Oct:2006
Location: Plovdiv
Posts: 305
. ( Microsoft ) :
[1+5] [2+6] [3+7] [4+8]
PS: : http://www.intel.com/software/produc...d_affinity.htmprepBut nI vrbLike adjHungarian! qWhat's artThe adjBig nProblem?
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18th July 2009 18:13 #3
, topology enumeration. ! !
, . .
"640K ught to be enough for anybody" - Bill Gates, 1981
::Machine specs::Fract::AGG::::Baileys::blog::YouTube channel




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