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Virtualbox low PPD

R

rbest62

n00b
Joined
Feb 15, 2012
Messages
13
I setup up a new win 7 box with dual E5-2680 with Virtualbox to add another machine to the mix. I need to have Win7 so cannot have another deadicated linux box.

I have 30 cores and 12 gig ram for the ubunto 11.10 VB, when I look at the CPU usage on the windows side it is running about 70%. On the VB it is at 100%, but the TPF seems low compared to my other 2P machine TPF 37:36 and PPD 8658 on a 8101 project.

Did I get thing setup correctly? or is this to be expected.

Thnaks
 
When you setup the linux VM did you make sure the kraken was installed in the VM? Also, I'm not sure if 30 is a valid core count to fold on, but others can chime in on that.
 
Yes I did install Kraken. It is a 32 core machine figured leave 2 so the machine does not bog down to much.
 
I experienced the SAME thing just last week. I was getting 8101's on my very similar machine and my TPF was ~34 minutes. I went ahead and installed Ubuntu 10.10 on an extra hard drive and my TPF dropped down to ~22 minutes. Also, I noticed my CPU's only ran at 2.4ghz under windows while they would run 2.8ghz under Linux. All was fine and dandy until that hard drive died, so now its on standby folding in windows again getting miserable ppd.
 
You may be past the limits of what VirtualBox can do. I'd maybe try 32 cores to the VM and -smp 32 just to see if it improves anything, but I doubt it will. Virtualization is limited, and you may very well just have too many cores for VirtualBox.

I have to ask though - " I need to have Win7" - why? Would a Windows 7 VM running on a GUI Linux work for you? I just set this up using Xubuntu 12.04 as the main OS with a Windows XP VM (only because I already had it built) running on top of it, and it is not bad at all even in the graphical VM Windows environment.
 
musky said:
You may be past the limits of what VirtualBox can do. I'd maybe try 32 cores to the VM and -smp 32 just to see if it improves anything, but I doubt it will. Virtualization is limited, and you may very well just have too many cores for VirtualBox.
Click to expand...

This is probably the case. I tried several configurations bewteen 24 and 32 threads and saw no change at all.
 
The Win 7 is an IT build, i am using the system at time to do soem schematic and layout work. Not sure about putting the iT build on a VM.

I tried changing the cores to 32 and did not see any difference. I may just do a dual boot, was trying to avoid that. I have lost a few work units before do to curuption after moving machine or rebooting.
 
I tried running a linux VM on Server 2008 with 8GB ram and 32 cores and the performance sucked ass. Even though in linux top was showing all cores active and a load of 32ish, on the windoze side only about 20% of the 48 cores present where active.

I definitely agree with musky in that is most likely a VirtualBox issue. Try running two VMs with 16 cores each.
 
Well gave up on the VM idea. I did a quick 10.10 install (having troubles with later ones due to Nvidia card). Before I left work the TPF was between 16:45 and 17:00. Happy with that just need to remember to back up the work directory before switching to Win 7.
 
As the user you are folding under:

Code: 
echo "*/15  *     *     *     *         rsync -avp --delete /media/iRam/fah /backup" | crontab

Change "/media/iRam/fah" to the directory where you run the fah client from.
Change "/backup" to the directory where you want to put the backup at.

Now your fah client directory will be backuped every 15 minutes.
 
Core32 said:
Seems like 15 minute intervals would begin to impact performance. I think my fah backups are cron'd at like 3 hours.
Click to expand...

It is using rsync which only copies the files that have changed. The amount time it takes to run is fairly small.
 
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