#1
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ut optimizing
hat jemand ne ahnung wie ma die ganze sache noch schneller bekommt, welche schräubchen wichtig in der ut.ini sind ??
cu & thx |
#2
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Re: ut optimizing
hehe,
ein tipp noch auf jedenfall!!! MTRR in den Kernel kompilen da lüppts schneller cu okami |
#3
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Neutral
Re: ut optimizing
Was is "MTRR"?? Und warum sollte ich das machen??
Und vor allem, wie viel bringt es?? |
#4
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Re: ut optimizing
MTRR bringt ca 25 %
On Intel P6 family processors (Pentium Pro, Pentium II and later) the Memory Type Range Registers (MTRRs) may be used to control processor access to memory ranges. This is most useful when you have a video (VGA) card on a PCI or AGP bus. Enabling write-combining allows bus write transfers to be combined into a larger transfer before bursting over the PCI/AGP bus. This can increase performance of image write operations 2.5 times or more. This option creates a /proc/mtrr file which may be used to manipulate your MTRRs. Typically the X server should use this. This should have a reasonably generic interface so that similar control registers on other processors can be easily supported. The Cyrix 6x86, 6x86MX and M II processors have Address Range Registers (ARRs) which provide a similar functionality to MTRRs. For these, the ARRs are used to emulate the MTRRs. The AMD K6-2 (stepping 8 and above) and K6-3 processors have two MTRRs. These are supported. The Centaur C6 (WinChip) and WinChip 2&3 processors have 8 MCRs. These are supported. Note that, due to the design of the WinChip 2&3, setting the access for normal memory to uncachable or write-combine on these processors will result in instant kernel panic. It is okay to set this for non-cacheable (video) memory. Saying Y here also fixes a problem with buggy SMP BIOSes which only set the MTRRs for the boot CPU and not the secondary CPUs. This can lead to all sorts of problems. You can safely say Y even if your machine doesn't have MTRRs, you'll just add about 3k to your kernel. See Documentation/mtrr.txt for more information. |
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