below I copy and pasted an email that I received from the author of these screensavers, it turns out that this is expected behavior. however he said that there are options to help moderate this issue, but since we have no configuration dialog in the screensavers dialog, we can not do anything about the problem. maybe you can hard code some of the options by default. maybe going out and grabbing the very newest versions of his screensavors can help also, he says that he did some code cleanup on his site which helped somewhat. I seem to recall I did get better operation from the newest versions than I did from the older versions.
"Hi Gene, I have a couple ideas to consider here; what you're seeing may be expected behavior. I can see how you would argue that a CPU-eating saver is a pretty bad idea. While writing those I have always aimed at making eye candy even if it takes a lot of computation. I definitely wasn't trying to write CPU savers. First of all, when hardware acceleration isn't used I have always seen framerates of 1FPS or worse. If you're seeing 10FPS or higher, you're probably using hardware acceleration. Some of my savers use a ton of compute power. Helios and Hyperspace both compute implicit surfaces each frame. Skyrocket does quite a bit of computation on default settings updating its particles. The other savers use varying amounts of CPU and graphics power depending on your settings, but they aren't usually as bad as the 3 I mentioned above. To limit the frame rate (and possibly cut down CPU usage) I make a couple recommendations on my website: "The easiest way is to enable the "vertical sync" or "vsync" option in your graphics driver. This will make the frame rate slow down to the monitor refresh rate. The other way is to use the saver's internal frame rate limiter, which can be accessed through its configuration dialog box." I don't know if the rss-glx port included the frame rate limiter that I have built into the original Windows versions Does any of this information help, or is what you're seeing worse than what I have described here? Feel free to copy this email to your bug thread if you think it will help.... - Terry" -- screensavers cause high CPU usage https://bugs.launchpad.net/bugs/174191 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
