Re: [BUG] 2.4 VM sucks. Again

[Martin J. Bligh]

>> I'm not sure exactly what Roy was doing, but we were taking a machine
>> with 16Gb of RAM, and reading files into the page cache - I think we built up
>> 8 million buffer_heads according to slabinfo ... on a P4 they're 128 bytes each,
>> on a P3 96 bytes.
> 
> The buffer heads one would make sense. I only test on realistic sized systems. 

Well, it'll still waste valuable memory there too, though you may not totally kill it.

> Once you pass 4Gb there are so many problems its not worth using x86 in the
> long run

Nah, we just haven't fixed them yet ;-)

M.