<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Could it perhaps be a canonical case of Linux build with low CONFIG_HZ such as 100 or around?<br></span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> "Hittner, David T (IS)" <david.hittner@ngc.com><br> <b><span style="font-weight: bold;">To:</span></b> Mark Pizzolato - Info Comm <Mark@infocomm.com>; Priya Chincholikar <priyachinc@gmail.com>; "simh@trailing-edge.com" <simh@trailing-edge.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, January 24, 2014 12:43 PM<br> <b><span style="font-weight: bold;">Subject:</span></b>
Re: [Simh] Reduce CPU usage<br> </font> </div> <div class="y_msg_container"><br>
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<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">And what version of VMS are you running? Different versions of VMS have different idle characteristics..</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Dave</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div>
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<div class="yiv1106173241MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> simh-bounces@trailing-edge.com [mailto:simh-bounces@trailing-edge.com]
<b>On Behalf Of </b>Mark Pizzolato - Info Comm<br>
<b>Sent:</b> Friday, January 24, 2014 8:26 AM<br>
<b>To:</b> Priya Chincholikar; simh@trailing-edge.com<br>
<b>Subject:</b> EXT :Re: [Simh] Reduce CPU usage</span></div>
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<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Hi Priya,</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">This is one of those “it works for me” cases. Idling works fine for a VMS guest on my fc18 x86 test system.</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">What is the output of “SHOW VERSION” done at the “sim>” prompt?</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">What does your configuration file look like?</span></div>
<div class="yiv1106173241MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div>
<div class="yiv1106173241MsoListParagraph" style=""><span style="font-size:11.0pt;color:#1F497D;"><span style="">-<span style="font:7.0pt;">
</span></span></span><span style="font-size:11.0pt;color:#1F497D;">Mark</span></div>
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<div class="yiv1106173241MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;">
<a rel="nofollow" ymailto="mailto:simh-bounces@trailing-edge.com" target="_blank" href="mailto:simh-bounces@trailing-edge.com">simh-bounces@trailing-edge.com</a> [<a rel="nofollow" ymailto="mailto:simh-bounces@trailing-edge.com" target="_blank" href="mailto:simh-bounces@trailing-edge.com">mailto:simh-bounces@trailing-edge.com</a>]
<b>On Behalf Of </b>Priya Chincholikar<br>
<b>Sent:</b> Friday, January 24, 2014 3:40 AM<br>
<b>To:</b> <a rel="nofollow" ymailto="mailto:simh@trailing-edge.com" target="_blank" href="mailto:simh@trailing-edge.com">simh@trailing-edge.com</a><br>
<b>Subject:</b> [Simh] Reduce CPU usage</span></div>
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<div class="yiv1106173241MsoNormal">Hi,</div>
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<div class="yiv1106173241MsoNormal">The cpu usage while running the emulator is shown as 97% to 99%. Is there a way to reduce this?</div>
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<div class="yiv1106173241MsoNormal">And I tried setting the cpu idle but no use. CPU utilization is still high.</div>
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<div class="yiv1106173241MsoNormal"><i>sim> show cpu</i></div>
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<div class="yiv1106173241MsoNormal"><i>CPU idle disabled, model=VAXServer 3900 (KA655), NOAUTOBOOT</i></div>
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<div class="yiv1106173241MsoNormal"><i> 64MB, HALT to console</i></div>
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<div class="yiv1106173241MsoNormal"><i>sim> SET CPU IDLE=VMS</i></div>
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<div class="yiv1106173241MsoNormal"><i>sim> show cpu</i></div>
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<div class="yiv1106173241MsoNormal"><i>CPU idle=VMS, idle enabled, model=VAXServer 3900 (KA655), NOAUTOBOOT</i></div>
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<div class="yiv1106173241MsoNormal"><i> 64MB, HALT to console</i></div>
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<div class="yiv1106173241MsoNormal">Host OS used is Linux. fc18. </div>
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<div class="yiv1106173241MsoNormal">Thanks,</div>
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<div class="yiv1106173241MsoNormal">Priya </div>
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