Hi Gilles, Thank you for your answer!
Does the Linux-Kernel need to be triggered every now and then to adjust system clock? I know that in times of DOS, the system timer had to occur every 18.3 seconds, and I have heard that Linux adjusted this for better scheduling. Do you know how often Xenomai issues a timer irq during idle phases? Thanks in advance, Richard -------- Original-Nachricht -------- Datum: Fri, 20 Apr 2007 22:27:16 +0200 Von: Gilles Chanteperdrix <[EMAIL PROTECTED]> An: [EMAIL PROTECTED] CC: [email protected] Betreff: Re: [Xenomai-help] Timer frequency > [EMAIL PROTECTED] wrote: > > Hi folks, > > > > does Xenomai adjust the system timer frequency? I probably does, so how > can I find out the frequency on my system? > > See: > http://www.xenomai.org/documentation/branches/v2.3.x/html/api/group__native__timer.html#g66f026b0ac68ef3acde0e6d1bdb6baaf > > In short, by default, the system timer is handled in aperiodic mode, > which means that there is no timer frequency: the system timer is > programmed at each software timer event to tick at next event. > > If you are using the stable version or previous releases, the system > timer can be set to periodic mode at compilation time or by passing > parameters to skins modules. > > Xenomai trunk emulates periodic mode over aperiodic mode and allows to > set for each skin whether it will use the aperiodic timer, or an > (emulated) periodic timer. > > -- > > > Gilles Chanteperdrix. -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
