SuSE Support Database
Title: Slowdown after a memory expansion

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Slowdown after a memory expansion
Symptom:
The computer is slower after a memory expansion.
Cause:
Some old boards or their cache controller can only cache an specific
memory area. Mostly it is limited to 16MB. Since Linux uses the
entire available memory area, memory accesses outside the cacheable area
are really slow.
Solution:
Should your board e.g. only have available 128kB cache and you can expand
this to 256 kB, this can be the solution. Unfortunately not always,
because some cache controllers are buggy and a cache too big causes problems.

Keywords: RAM, CACHE

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SDB-ram_cache, Copyright SuSE GmbH, Nuremberg, Germany
- Version:
SuSE GmbH - Last generated: 07. Oct 1999 17:56:22
by maddin
with sdb_gen 1.00.0