Re: File copy is very slow on linux-3.4.2 (or linux-3.3x) on a specifichardware: AMD FX-8150 + 990FX (solved?)
From: Wallak
Date: Sat Jun 16 2012 - 15:32:51 EST
Rik van Riel wrote:
On 06/13/2012 04:37 PM, Wallak wrote:
HighTotal: 8052692 kB HighTotal: 8052692 kB
HighFree: 7978664 kB | HighFree: 6227412 kB
LowTotal: 229508 kB LowTotal: 229508 kB
LowFree: 195804 kB | LowFree: 148948 kB
Did the BIOS remap essentially all of the low memory
to end up above the 1GB boundary?
May be not, but there was also a vmalloc= option on the linux
command line; Theses options must be used with caution, and takes some
low memory.
This does not look like a system that should be run
with a 32 bit kernel, since it only has 200MB of lowmem,
giving you a 40:1 highmem:lowmem ratio, which is really
too much to run well.
You are right; I will try also in 64-bits mode.
Wallak.
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