[Simh] Reduce CPU usage

[Sergey Oboguev]

Could it perhaps be a canonical case of Linux build with low CONFIG_HZ such as 100 or around?



________________________________
 From: "Hittner, David T (IS)" <david.hittner at ngc.com>
To: Mark Pizzolato - Info Comm <Mark at infocomm.com>; Priya Chincholikar <priyachinc at gmail.com>; "simh at trailing-edge.com" <simh at trailing-edge.com> 
Sent: Friday, January 24, 2014 12:43 PM
Subject: Re: [Simh] Reduce CPU usage
 


 
And what version of VMS are you running? Different versions of VMS have different idle characteristics..
 
Dave
 
From:simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-edge.com] On Behalf Of Mark Pizzolato - Info Comm
Sent: Friday, January 24, 2014 8:26 AM
To: Priya Chincholikar; simh at trailing-edge.com
Subject: EXT :Re: [Simh] Reduce CPU usage
 
Hi Priya,
 
This is one of those “it works for me” cases.  Idling works fine for a VMS guest on my fc18 x86 test system.
 
What is the output of “SHOW VERSION” done at the “sim>” prompt?
What does your configuration file look like?
 
-          Mark
 
From:simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-edge.com] On Behalf Of Priya Chincholikar
Sent: Friday, January 24, 2014 3:40 AM
To: simh at trailing-edge.com
Subject: [Simh] Reduce CPU usage
 
Hi,
 
The cpu usage while running the emulator is shown as 97% to 99%. Is there a way to reduce this?
And I tried setting the cpu idle but no use. CPU utilization is still high.
 
sim> show cpu
CPU     idle disabled, model=VAXServer 3900 (KA655), NOAUTOBOOT
        64MB, HALT to console
sim> SET CPU IDLE=VMS
sim> show cpu
CPU     idle=VMS, idle enabled, model=VAXServer 3900 (KA655), NOAUTOBOOT
        64MB, HALT to console
 
Host OS used is Linux. fc18. 
 
Thanks,
Priya 
 
 
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