On 12/30/19 6:28 AM, Steve Coleman wrote:
> On 2019-12-29 23:32, tetrahedra via qubes-users wrote:
>> On Sun, Dec 29, 2019 at 01:44:28PM +0000, 'awokd' via qubes-users wrote:
>>> tetrahedra via qubes-users:
>>>> On Fri, Dec 27, 2019 at 09:57:16AM +0100, tetrahedra via qubes-users
>>>> wrote:
>>>>> Unfortunately I need to get work done so have to reboot to "just
>>>>> make it
>>>>> go away" but I am still interested in troubleshooting ideas (for
>>>>> when it
>>>>> happens next).
>>>
>>> Investigate xl top more thoroughly. You can identify offending VMs with
>>> it, and see if all your RAM is in use which triggers swapping to (slow)
>>> disk.
>>
>> My disk is a pretty fast SSD, and I did use xentop (`xl top` is just an
>> alias for xentop) and it didn't show anything unusual as far as I can
>> recall. Perusing the xentop man page doesn't show any potentially
>> relevant options except for `--full-name` and that option doesn't seem
>> to do anything. Pressing "B" (for "vBds") seems to list a number of
>> devices for each VM but none of them have any 2-digit unique identifying
>> number (as `iotop` seems to display).
>>
> 
> I have had graphics slowdown issues in the past on two occasions that
> acted like this, so here are some things to try:
> 
> 1) Add the 'nopat' argument to the 'kernel opts:' boot command line.
> 
>> qvm-prefs <AppVM> -s kernelopts nopat
> 
> 2) The second, I can not seem to locate that email exchange at the
> moment, but it was a option on the graphics subsystem that needed to be
> turned off. Something like backing store, but I'm sure that is not the
> correct name for it. I'll keep looking for that one until I hear back if
> #1 above fixed your problem or not.
> 
> Steve
> 
> 

so how many VMs are open at one time, how much RAM have you?  you know
you can go into qubes settings and change the max RAM / per VM to say
1500 or so ?

I still believe  "speed step" in the UEFI was what was my slowness
problem before, I believe I still have it enabled, slowness for
everything but esp boot times  YMMV

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