Thread 'Windows Screensaver "flashing" with CPU under 100'

Author	Message
eteq Send message Joined: 8 Feb 07 Posts: 3	Message 8070 - Posted: 8 Feb 2007, 10:52:14 UTC Last modified: 8 Feb 2007, 10:52:51 UTC Something very strange is happening in Boinc 5.8.8 under Win XP... I have the CPU throttled down to 50% (although it does it at any amount less than full CPU), and when the screen saver and graphics come up, they blink. That is, the screen saver appears for about a second, then the windows task bar appears, and then the Boinc graphics come back, rinse, and repeat. This wouldn't be so much of a problem, except that it prevents the monitor from automatically sleeping like it normally does. Again, if I set CPU to 100%, the problem goes away, but I don't want to do that... Anyone know what's going on? ID: 8070 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15561	Message 8071 - Posted: 8 Feb 2007, 11:56:58 UTC When you are throttling the CPU through BOINC, what it does is pause the crunching, then continue the crunching. When a result is paused it won't show the graphics/screen saver. So when you're using the throttling, don't use the screen saver. ID: 8071 ·

Nicolas Send message Joined: 19 Jan 07 Posts: 1179	Message 8073 - Posted: 8 Feb 2007, 14:55:28 UTC Most preempted results can still show graphics (I mean on most projects). The suspending/resuming for throttling should only stop the computation thread. ID: 8073 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15561	Message 8074 - Posted: 8 Feb 2007, 15:25:45 UTC - in response to Message 8073. Most preempted results can still show graphics (I mean on most projects). The suspending/resuming for throttling should only stop the computation thread. Should maybe, but it doesn't. I'd say, test it out on your system, Nicolas. I just did. Put preferences to run 50% CPU, updated prefs, made my screen saver run BOINC, sat back and waited the minute. And true to form, the Einstein screen saver started, flashed off, started, flashed off, each second. ;) I'll ask the devs if they want this behaviour. ID: 8074 ·

Nicolas Send message Joined: 19 Jan 07 Posts: 1179	Message 8075 - Posted: 8 Feb 2007, 15:43:03 UTC I did use the word 'should' :) ID: 8075 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15561	Message 8078 - Posted: 8 Feb 2007, 16:56:37 UTC OK, I am testing new versions of BOINC 5.8.10 at the moment to see if this is fixed. According to the devs they got it cracked, I am waiting for the latest version with all the fixes in to test if it's really fixed. Check this space. ;) ID: 8078 ·

eteq Send message Joined: 8 Feb 07 Posts: 3	Message 8084 - Posted: 8 Feb 2007, 20:57:38 UTC - in response to Message 8078. Ah, ok - good to know they have that quick of a turn-around on new problems! ID: 8084 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15561	Message 8115 - Posted: 9 Feb 2007, 16:59:50 UTC @eteg, Please test if BOINC 5.8.11 is still doing it on your system. It's working correct on mine. ID: 8115 ·

eteq Send message Joined: 8 Feb 07 Posts: 3	Message 8131 - Posted: 9 Feb 2007, 22:35:36 UTC - in response to Message 8115. Yep that did it - if only commercial companies would patch their products so fast... thanks! ID: 8131 ·

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