[Fwd: HTT/SMP servers instability on 5.3-STABLE]

[Lucas Holt]

>>
>
> Well thanks for sharing those observations. Until I read what you said 
> I *assumed* that there was a performance difference with HTT enabled. 
> The specs seem to show that there *is* a theoretical difference, yet 
> clearly according to your observations there just isn't any difference 
> of earth shaking proportions.
>
> Much appreciated!
>
> Regards,
> -Colin
> --
> Colin J. Raven
> NetBSD on a Cobalt Qube2 - http://www.NetBSD.org - Fri Dec 10 19:56:00 
> UTC 2004
>  7:56PM  up  4:09, 5 users, load averages: 1.11, 1.16, 1.16
> _______________________________________________
>


I've got a dual xeon 2.0 ghz workstation.  I've tried running with and 
without HTT enabled on it.  My observations were that it seemed to help 
slightly with certain tasks but in general degraded system performance. 
  For example, if i build a world to upgrade the OS it takes at least 30 
seconds longer with HTT enabled.  I tried it multiple times to verify 
it.  I even tried it with different values for the j flag.  (3 4 5 and 
6)

Similarly, if i run it in windows with HTT enabled I noticed that 
windows was peppy but it was a disaster during gaming.  Of course that 
makes sense as most of my games are not designed for multiple cpus.  
(enemy territory, quake 3, Doom 3,  etc)  I also realize i could play 
some of them in fbsd, except my radeon 9600 xt isn't supported for 3d 
acceleration!


Lucas Holt
Luke at FoolishGames.com
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