Re: implications of SMP kernel on UP

2004-04-02 Thread Robert Watson
On Thu, 1 Apr 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 ?) - additional locking problematic ? - ... ? Or asked the other way round: why

Re: implications of SMP kernel on UP

2004-04-02 Thread Helge Oldach
Thierry Herbelot: Le Thursday 01 April 2004 09:10, Bjoern A. Zeeb a écrit : 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 ?) I got an improvement with a factor of ten between an

Re: implications of SMP kernel on UP

2004-04-02 Thread Robert Watson
On Thu, 1 Apr 2004, Thierry Herbelot wrote: Le Thursday 01 April 2004 09:10, Bjoern A. Zeeb a écrit : Hi, 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 ?) I got an

Re: implications of SMP kernel on UP

2004-04-01 Thread Colin Percival
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

Re: implications of SMP kernel on UP

2004-04-01 Thread 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

implications of SMP kernel on UP

2004-03-31 Thread Bjoern A. Zeeb
Hi, 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 ?) - additional locking problematic ? - ... ? Or asked the other way round: why would I want to disable SMP on a kernel that is