Hi CaptainMidnight.

I don't know about 10.04lts for sure, i'm still using 8.04lts.

A lot of people have complained about not being able to run Boinc at 100%, it's a power saving thing that Ubuntu does i don't know about other Linux versions.

But to get Ubuntu to run at full speed you could try this.

Right click on the top taskbar.

Then on Add to panel, look for CPU Scaling Monitor.

If your motherboard supports it, you should be able to select 100%.

If that doesn't work let us know.

Good luck.

Hi CaptainMidnight.

Well it was worth a shot, there is something else you could have a look at under.

System menu / Administration / Services

Services Setting, there should be a list, have a look for CPU Frequency Manager (powernowd)

if it is ticked / untick it, you might have to reboot to get it to take.

If you want to see what speed your c.p.u. runnig at before / after try this.

In Terminal type cat /proc/cpuinfo

OK, obviously from your answer to P . P . L . your processor or/and your motherboard do not support varying the clock frequency. So forget about this topic, it is not your problem.

Anyway, your problem is simple: the Local Preferences window is too large for your screen resolution and you don't see the CPU throttle field which is at the bottom of the Processor tab.
Either
- move the window up to find that field (and the button to validate your choice )
- or change the screen resolution (at least for the time of making the change).

I remember I had this problem too in the past, and we are not the only ones who have been caught by that...
Maybe some day the BOINC developers will make this window scrollable, at last.

Edit: Added the text in italics

Success !!! Problem Solved ! JmBoullier's suggestion: "the Local Preferences window is too large for your screen resolution and you don't see the CPU throttle field which is at the bottom of the Processor tab" was an exact diagnosis and solution to the problem.

When I changed the screen resolution with the Ubuntu BOINC client on the screen, the small window for setting the percentage of processor time BOINC is allowed to use appeared on the screen. The default setting is 60% but now just as with the Windows OS I was able to set the Linux rate at 100%.

Just watching the BOINC client ticking off the seconds at a one second per tick rate shows an obvious improvement in the speed of work unit processing. Letting the computer run for ten hours should now produce the full ten hours of work unit completion, not the disappointing six hours worth I have been seeing.

I just wonder how many other folks,who are running BOINC on Linux, are aware that their machines are not processing the work units as quickly as possible. And I wonder how much collective processing power is being lost as a result of this problem of the invisible setting window.

By the way, I also took the suggestion to add the processor speed panel to the Ubuntu task bar, and found that my CPU is always running at nearly full speed 2.79-GHz. The problem was the the Ubuntu BOINC client wasn't set to take full advantage of it.

Thanks to all, and especially JmBoullier, for helping me solve my problem.