implications of SMP kernel on UP

[Claudiu Dragalina-Paraipan]

hello,

what about SMP enabled kernel on Intel P4 with HT technology ?
I have one but I didn't had the chance to test it yet.


Colin Percival wrote:
 > At 08:10 01/04/2004, Bjoern A. Zeeb wrote:
 >
 >>what are the implications on running an SMP enabled kernel on a UP
 >>machine ?
 >>
 >>I first thought of things like:
 >>- performence (most likely not worth the discussion ?)
 >
 >
 >   At least in 5.2-RELEASE, there is a significant performance
 > delta; buildworld takes about 5% longer on an SMP kernel (and
 > the time spent in the kernel is 20% longer).
 >   I know some optimizations were done shortly after 5.2, so I
 > wouldn't be surprised if this situation has improved.
 >
 > Colin Percival
 >

With respect,

-- 
Claudiu Dragalina-Paraipan
Reversed Hell Networks / reversedhell.net

e-mail: clau at reversedhell.net


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 254 bytes
Desc: OpenPGP digital signature
Url : http://lists.freebsd.org/pipermail/freebsd-hackers/attachments/20040401/4f6c39ba/signature.bin