Re: Strange Slowdown

[Matthias Schniedermeyer <ms@citd.de>]

> > After i switched "High Memory-Support" to "OFF"(4GB Before) the speed went
> > to normal, but now less than half RAM is used.
> > Any suggestions?
> 
> This sounds like the top of memory is running uncached due to wrong mtrr
> settings from the BIOS. Can you post your /proc/mtrr 

Because of other reasons i'm back to 2.2.19

/proc/mtrr from 2.2.19 show this
-- /proc/mtrr --
reg00: base=0x00000000 (   0MB), size=1024MB: write-back, count=1
reg01: base=0x40000000 (1024MB), size= 512MB: write-back, count=1
reg02: base=0x60000000 (1536MB), size= 256MB: write-back, count=1
reg03: base=0x70000000 (1792MB), size= 128MB: write-back, count=1
reg04: base=0x78000000 (1920MB), size=  64MB: write-back, count=1
reg05: base=0x7c000000 (1984MB), size=  32MB: write-back, count=1
-- end --
(32MB "missing". Seems like Linux uses these "missing" MBs.)

For the 2.4.X-Kernel i had switched off the MTRR-Kernel-Option!

Maybe i should try it another time with MTRR-Support switched on. 
Or i should use "mem=2016M".



Bis denn

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