> L2 Cache Optimization windows XP, для проца П4 с 2 мегами Л2 кеша
 Zemlynin Member is Offline
 Posted: 23-05-2005, 21:20 (post 1, #421728)

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Подскажите стоит ли этим заниматься ?
Где то я вычтиал,что можно изменить значения и управлять типа.Кто то этим занимался ?
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 Billy Bonce Member is Offline
 Posted: 23-05-2005, 22:55 (post 2, #421796)

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Zemlynin

Если верить этому сайту, то усе это фигня и игра в бирюльки

Как оно на самом деле - не ведаю, ибо умом управление памятью в виндовс не понять :wink:

L2 Cache Tweak

Alias - SecondLevelDataCache Tweak

Myth - "Adjusting the SecondLevelDataCache Registry value to match your CPU's L2 Cache size will improve performance."

Reality - "If you do not set this registry value, Windows will use the HAL (Hardware Abstraction Layer) for retrieval of the L2 cache size automatically on boot up. If this fails, a default value of 256KB is used. This is where the myth that XP can only use 256KB of L2 cache comes from. But it's false. The SecondLevelDataCache is designed as a secondary source of cache size information for computers on which the HAL cannot detect the L2 cache. The HAL is able to retrieve the L2 cache size from any CPU using the set-associative cache design (Pentium II or newer), it's only the relatively few older processors with direct-mapped L2 caches that the HAL will not recognize. This tweak only applies to older computers (Pentium I or older) with over 64 MB of memory. On these older systems, this tweak can improve performance by about 0.4%. Pentium II and later CPUs are not affected."

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 Zemlynin Member is Offline
 Posted: 23-05-2005, 23:56 (post 3, #421826)

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понятно.спасибо за линку.
одно могу сказать,что тока с выходом новой оси,новое железо будет работать на самом деле на 100%
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