Messages in this thread | | | Date | Tue, 22 Apr 1997 22:52:42 +0200 (MET DST) | From | Pavel Machek <> | Subject | Problems with too much memory (?) |
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Hi!
This still may be hw problem, but aybe it is not. My machine is 486DX2/80, 128kb level 2 cache (stolen from one 386 :-), 20MB ram (16M+4M). It compiles kernel about 32 minutes.
When I removed 4MB SIMM, compilation time went down to 22 minutes. I thought that it is hardware problem, but I wanted to investigate it more. So I put memory back and limited memory to 16M (mem=16M). Compile time stayed at about 22 minutes.
So I suspect linux tfor having problems with too much memory.
My linux is 2.1.35, slightly modified (PCspeaker, Hypertech cdrom, Network block device, mingo's performance patch into sched.c).
30% difference is quite a big one, and I suspect problems somewhere in mm / buffer code.
[BTW mingo's patch speeeded up my system by 30% some time ago - and it was not still included in linux kernel. Why? Could someone compare 2.1.35's performance with 2.0.29's?]
-- This is my little buggy signature... Pavel GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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