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Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/nois

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/nois
From: jim burns <jim_burn@xxxxxxxxxxxxx>
Date: Wed, 13 Jan 2010 20:55:08 -0500
Delivery-date: Wed, 13 Jan 2010 17:55:50 -0800
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> ??? hrm.  checking,

> cat /etc/init.d/boot.local
>  /usr/sbin/xenpm set-scaling-governor ondemand
>  /usr/sbin/xenpm set-scaling-governor performance
>  /usr/sbin/xm sched-credit -d Domain-0 -w 512

> xm dmesg | grep -i scheduler
>  (XEN) Using scheduler: SMP Credit Scheduler (credit)

> xm sched-credit -d Domain-0 -w 512
> xm sched-credit -d Domain-0
>  Name                                ID Weight  Cap
>  Domain-0                             0    512    0

> xm sched-credit -d test_guest
>  Name                                ID Weight  Cap
>  test_guest                           1    256    0

All of the SuSE /etc/init.d/boot.xxx scripts execute before any services start 
to run - and thus in particular, before xend is started. You will have to 
create a simple service, put it in /etc/init.d, and put a soft link to it, 
called something like S99local, from /etc/init.d/rc5.d (for runlevel 5, etc.) 
back to /etc/init.d/local. The 99 ensures that it will be the last service 
executed.

Chkconfig probably won't like your 'local' service unless you put in a header 
like you will be able to see in the other init.d services.

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