<div dir="ltr"><div>I don't know if is is relevant or useful but on OSX, the VirtualBox Manager averages a CPU Time of 1.22 - 1.4. Also, VBoxSVC CPU Time seems to creep up for some reason from 0.32 to as high as 0.84 without starting a guest.<br><br></div>If uesless info, feel free to ignore it. :)<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jul 13, 2015 at 5:22 AM, Ramshankar <span dir="ltr"><<a href="mailto:ramshankar.venkataraman@oracle.com" target="_blank">ramshankar.venkataraman@oracle.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 07/12/2015 05:53 PM, Alessandro Suardi wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Linux bumps up load average by 1 for each process in D state - so the point here<br>
is not that something is being used (it isn't), but why is<br>
iprt-VBoxTscThr in D state?<br>
<br>
Devs might find helpful a<br>
<br>
$ ps auxww|grep iprt-VBoxTscThr<br>
<br>
since that would should the kernel WCHAN where the thread is stuck.<br>
</blockquote>
<br></span>
It's not really stuck, the TSC delta thread in the support driver is doing an uninterruptible sleep, see supdrvTscDeltaThread() function. <a href="https://www.virtualbox.org/browser/vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp" rel="noreferrer" target="_blank">https://www.virtualbox.org/browser/vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp</a><br>
<br>
Under kTscDeltaThreadState_Listening case label; you will see that we are doing a RTThreadUserWait() which does an uninterruptible sleep waiting to be woken up by an event from the main thread in the VirtualBox driver if necessary.<br>
<br>
Does the attached patch make any difference for you?<br>
<br>
Regards,<br>
Ram.<div class="HOEnZb"><div class="h5"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Cheers,<br>
<br>
On Sat, Jul 11, 2015 at 6:18 PM, Perry Halbert <<a href="mailto:phalbert@cox.net" target="_blank">phalbert@cox.net</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Builds are done from SVN but the issue is also present in released V-5<br>
build. Linux is all I use so I can't tell you about Win or Mac.<br>
<br>
Issue with loads when no guests, VBoxsvc, or VBox manager are running, just<br>
the kernel modules active.<br>
<br>
with running vboxdrv modules<br>
uptime shows load average: 1.24, 1.18, 0.84<br>
<br>
show running services associated to VBox shows the following:<br>
ps -awx | grep V<br>
13713 ? S< 0:00 [iprt-VBoxWQueue]<br>
13717 ? D 0:00 [iprt-VBoxTscThr]<br>
<br>
After stopping vboxdrv modules<br>
load average: 0.11, 0.09, 0.16<br>
<br>
I have tried building without the new services plus a few more I thought<br>
might have been causing this, DnD, Crypt, Webservice, HIDPI, and SDL with<br>
the following in the LocalConfig.kmk but results were the same as with or<br>
without.<br>
<br>
VBOX_WITH_DRAG_AND_DROP =<br>
VBOX_WITH_PLUGIN_CRYPT =<br>
VBOX_WITH_WEBSERVICES =<br>
VBOX_WITH_WEBSERVICES_SSL =<br>
VBOX_GUI_WITH_HIDPI =<br>
VBOX_WITH_VBOXSDL =<br>
<br>
The loads with vboxdrv modules enabled ( default ) are constant and never go<br>
below at least 1.24 which seems a little excessive to me when nothing is<br>
actually being used. Any thoughts on the matter or advice on what to look<br>
for?<br>
<br>
Perry<br>
<br>
<br>
_______________________________________________<br>
vbox-dev mailing list<br>
<a href="mailto:vbox-dev@virtualbox.org" target="_blank">vbox-dev@virtualbox.org</a><br>
<a href="https://www.virtualbox.org/mailman/listinfo/vbox-dev" rel="noreferrer" target="_blank">https://www.virtualbox.org/mailman/listinfo/vbox-dev</a><br>
<br>
</blockquote>
<br>
<br>
</blockquote>
<br>
</div></div><br>_______________________________________________<br>
vbox-dev mailing list<br>
<a href="mailto:vbox-dev@virtualbox.org">vbox-dev@virtualbox.org</a><br>
<a href="https://www.virtualbox.org/mailman/listinfo/vbox-dev" rel="noreferrer" target="_blank">https://www.virtualbox.org/mailman/listinfo/vbox-dev</a><br>
<br></blockquote></div><br></div>