Subj : Re: Solaris real-time thread capabilities
To   : comp.unix.solaris,comp.programming.threads
From : Greg Menke
Date : Wed Sep 07 2005 08:26 am


Casper H.S. Dik <Casper.Dik@Sun.COM> writes:

> capnwhit@yahoo.com writes:
> 
> >Hello Andrew, Thanks for the reply... I will talk to my sysadmin and
> >post a reply with any "suspicious" 3rd-party stuff that may be screwing
> >up realtime response... To my knowledge it's as close as
> >"out-of-the-box" as it gets... By the way, buried somewhere in my
> >lengthy opening post was the fact that I was running Solaris 8. I
> >haven't tried my full test suite against Solaris 9, but a simple while
> >loop testing the latency of "gethrtime()" showed that Solaris 9 was no
> >better than Solaris 8.
> 
> Did you perhaps have printf statements inside the loop?  Then you're
> measuring printf latency which is *much* higher.
> 

I think his test suite may also have arithmetic bugs in his interval
calculations- his jitter measurement program did.

Gregm

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