[erlang-questions] widefinder update

Thomas Lindgren <>
Mon Oct 29 09:35:09 CET 2007


--- Steve Vinoski <> wrote:

> On 10/28/07, Anders Nygren <>
> wrote:
> >
> > On 10/28/07, Hynek Vychodil
> <> wrote:
> > > Hi Anders,
> > > I rewrote your code a little. I removed all
> remaining binary bindings
> > > and it is noticeable faster again. Try
> wf_pichi3.erl.
> > >
> >
> > Hynek
> > that was great, Your change brings my wfinder1_1 +
> wfbm4_ets1_1
> > down to
> > real    0m1.118s
> > user    0m1.640s
> > sys     0m0.368s
> > on my 1.66 GHz dual core laptop.
> 
> 
> And on the 8-core 2.33GHz Intel Xeon Linux box with
> 2 GB RAM, this version
> is extremely fast:
> 
> real 0m0.567s
> user 0m2.249s
> sys 0m0.956s

Impressive. However, can someone explain why 
   sys > real? 
Is the kernel too running in parallel?

Best,
Thomas


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