Can virtualbox emulate CPU speed?
location: ubuntuforums.com - date: September 27, 2008
I have VirtualBox 1.6.2 set up on a 2.4 Ghz desktop machine with a couple of Linux and Windows VMs running. I also have a very old laptop (233 Mhz, 128 MB RAM) that I am trying to decide the best *buntu variant to install to. I am currently considering Ubuntu server and XFCE as an add on via apt-get (current Xubuntu has waaaaaaay too much Gnome to run on this machine - even Xubuntu 7.04 (last version I can tell that shipped w/o all the extra Gnome hooks) is a little resource heavy.
Anyway, I know that in VirtualBox, you can determine the amount of system RAM allocated to a VM (which I will do to emulate the target environment), but can you also emulate the host CPUs speed? I feel like this would be a good apples to apples comparison to non-commitally test which distros would function best on my intended target hardware.
P.S. For what its worth, I've already tried Puppy and DSL via LiveCD and I just do not like the JWM or the overall layout/set up. I know the
How to lower cpu speed?
location: ubuntuforums.com - date: February 9, 2012
My processor have a very bad habit of getting heated up very frequently and then the fan blows like a tornado!!
So to cope up with that i had to go to advanced power settings and reduce the maximum power state to 90% instead of 100%.
I am going to format my whole system today, as i am affected with W32.Xpaj.B virus.. (a frest start ) So yesterday just to give ubuntu v11.04 a try i installed it within windows and booted it, and the processor went crazy and got so heated up that windows had to shut itself down in order to save itself from any damages..
So my question is how can i reduce the same processor power state in ubuntu??
Also i am going to keep a separate partition of 50gb and will try to install ubuntu in that.. I have already tried that twice before but i messed up with that swap and /o or /r or /home thing..
So can anyone please would share any proper link regarding the same?? Something like this for backtrack?
or should i foll
Is there any way I can decrease my CPU temp in Ubuntu?
location: ubuntuforums.com - date: June 3, 2013
Hello everyone. I haven't used Ubuntu in a while, but now that it appears to be working better with the graphics card in my new laptop, I decided to come back.
I just installed 13.04 and I noticed that my fan is always on (it is only selectively on in Windows). I installed several programs, including lm-sensors (and ran sensors-detect) fancontrol, but I'm not entirely sure what to do with these. I then monitored the core temps using...
watch -n 1 -d sensors
...and found that the idle temp for my CPU is roughly 68C. Now, I have an HP Envy 14 with a quad-core i7 processor and a switchable HD Radeon card (I don't remember which one), so it is going to run a bit hot. AFAIK, Ubuntu only utilizes my lower-end Intel HD GPU. I am fine with this and don't really need the other one for Ubuntu, but I would think that it should run cooler than it does in Windows. Plus the fan sound is a tad irritating.
I know this is a dumb question, but is there any way I can make my laptop r
Desktop slowdown under Jaunty. CPU speed?
location: linuxquestions.com - date: September 11, 2009
Since upgrading my desktop from Intrepid to Jaunty last week the whole thing seems to have slowed down.
Processor is an AMD Athlon dual core 64 bit 4000+ and I have 2gb of RAM. Two specific symptoms are that it now seems unable to play flash video without jerking (and I know it's not due to buffering), and it takes forever to display PDF files, eg. 30 seconds to render one page with CPU usage up to 100% on one processor during that time.
I haven't managed to find any explanations on here or via Google, but there was some mention of problems with processor scaling. I don't know how to check whether that's working (or even if it's installed).
Processor info from /proc/cpu is:
VirtualBox High CPU Usage
location: ubuntuforums.com - date: June 23, 2008
My cpu is always at 100% when i turned on my Vbox. There's any fix or workaround for it?
i've searched already..but no luck.
ACPI Issue, can't get CPU temps or voltages in OS
location: ubuntuforums.com - date: June 21, 2011
So I am still fairly new to ubuntu but I know a little. I have been trying to get ACPI readouts in linux for a few days now and can not figure it out. I have installed lm-sensors and it reads out no sensors found. If I do sensors-detect, it runs through everything and spits out
* Chip `AMD Family 10h thermal sensors' (confidence: 9)
Warning: the required module k10temp is not currently installed
on your system. If it is built into the kernel then it's OK.
Otherwise, check http://www.lm-sensors.org/wiki/Devices for
No modules to load, skipping modules configuration.
Unloading i2c-dev... OK
I did an install of k10temp which gave me the temperature reading of the PCI card (I don't have one in). There were no other readouts. I don't remember how but I found that powernow-k8 is installed on my computer. I would very much like to be able to read my CPU temp and such while linux is running, so any help would
How Can I Increase Net Speed On Ubuntu?! XP Is Faster Weird!
location: linuxquestions.com - date: October 2, 2008
I got ubuntu as my host, and XP as guest. My internet speed is faster on XP (guest) than on ubuntu (host). This doesn't make sense. Is there a way to tweak my net connection on ubuntu to increase its internet speed?
Can Virtualbox in Mint14Mate run Mint 15RC
location: linuxquestions.com - date: May 19, 2013
Can Virtualbox in Mint14Mate run Mint15RC?
I downloaded Mint15RC and burned dvd and tried installing it in Virtualbox on Mint14Mate. All it did was hang after telling to install. The DVD boots and runs as live. Never had problem installing live b4. Cant remember if RC Live DVDS run in VBox.
Virtualbox guest network speed problem fixed
location: ubuntuforums.com - date: December 5, 2008
host : ubuntu 8.04
guest : windows 2000 prof
internet line : 100Mbps
nic : RTL8139 compatibles
1) samba shared folder access in guest OS extremely slow
2) upload network performance in guest OS too slow
(download is 72Mbps, but upload is 2Mbps)
When tested in test site (www.bechbee.co.kr), I got a packet loss
of 87% when service average is 0.17% ... !!!
1) Changing nic in virtual box setting screen. But best of 3 nic's
selectable in virtualbox is AM79C973, which was already used.
2) Changing NAT interface to Host interface. It slow down download
performance to 52Mbps, but upload performance is back to 70Mbps and
packet loss to 0%.
Changing NAT->Host interface affect download performance to 72% but
upload performance/packet loss can be greatly improved. This change
also let you enter samba shared directory instantly.
How to find CPU Speed on SuSE systems
location: linuxquestions.com - date: January 11, 2006
Anyone know how can I find CPU Speed on a SuSE system?
I tried cat /proc/cpuinfo and I got this output:
vendor_id : IBM/S390
# processors : 5
bogomips per cpu: 1179.64
processor 0: version = xx, identification = xxxxxx, machine = 2064
processor 1: version = xx, identification = xxxxxx, machine = 2064
processor 2: version = xx, identification = xxxxxx, machine = 2064
processor 3: version = xx, identification = xxxxxx, machine = 2064
processor 4: version = xx, identification = xxxxxx, machine = 2064
Are any of those numbers the CPU Speed in MHz, for example?
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