1) Questions and Answers : Windows : Project fills CPU use to 100% although "Use at most xx% of CPU time" is set (Message 1583) Posted 18 Mar 2022 by pimjoosten Post: Thank you all for responding. I have indeed discovered that this issue is not just related to SiDock. I also tried Universe@home, which apparently has the same issue. I thought it was just SiDock because the other projects I participate(d) in never had this issue. I got my information from the BOINC explanation of preferences: https://boinc.berkeley.edu/wiki/Preferences where “Use at most N % of the CPUs” is linked to keeping some CPUs free for other applications, whereas “Use at most N % CPU time” is linked to heat and energy usage. I have changed my settings to using less cores, and at the same time increased CPU-time to 100%. It does run better now. I will try whether I should reduce this 100% a little bit, because occasionally my computer did not respond immediately after I was away, when BOINC pauses its work. Besides heat that is another reason for having had CPU-time set at a lower value than 100%. I will also look into Tthrottle. Thanks again for your help. P.S. I tried to post this reply several times last weekend, but was unable to, because my browsers several times and at various points showed the message that the website took to long to respond.

2) Questions and Answers : Windows : Project fills CPU use to 100% although "Use at most xx% of CPU time" is set (Message 1561) Posted 7 Mar 2022 by pimjoosten Post: I discovered SiDock yesterday, after looking for a project to participate in because World Community Grid is offline for maintenance for 2 months. I have however found that running this project is infeasible on my computers, because the option “Use at most xx% of CPU time” is not (well) observed. On one of my computers (Intel Core i3-4030U, Win7 x64, BOINC v7.16.20, Use at most 50% of CPU time), when all 4 cores are used by SiDock it results in an almost continuous load of 100% without any real oscillation, see image: Imagelink: The difference between normal operation and using SiDock is clear when I snooze BOINC: This issue is especially visible when using all available cores. If just 3 of the 4 cores are used by BOINC/SiDock, the picture is somewhat different: In this case some oscillation can be observed, but it does not seem like it is a level of oscillation that corresponds with 50% CPU time. On another, more powerful computer (Intel Core i7-7700, Win10 x64, BOINC v7.16.20, Use at most 40% of CPU time) just a very slight oscillation can be observed when all 8 cores are used. However, CPU usage is still too high for 40% of CPU time: Again the difference with BOINC snoozing is big: Also, when using 1 core less than the maximum (i.e. 7), the oscillation is much more present: In all the examples above no other project was running other than SiDock. It seems that when SiDock uses all cores something is wrong, when the option “Use at most xx% of CPU time” is set. I have never seen this with other projects, like World Community Grid or Einstein@home. With those projects the oscillation was clearly present and therefore heat generation was much less. For me this is a no-go at this time for this project. Unfortunately, because I really would like to run this project, that is why I took the time to sort this out and post this on the forum. Therefore I hope it is something that can be solved. EDIT: unfortunately I apparently cannot insert images, even though I can use BBCode. Maybe someone can explain to me how to insert images so that my post becomes clear? Thank you in advance! EDIT 2: Here are the links for the images: 1: https://pasteboard.co/Lwgz2ZSJiH2y.png 2: https://pasteboard.co/JIeE3qoP6tYS.png 3: https://pasteboard.co/97oAtaWUCs7k.png 4: https://pasteboard.co/7FhoHthK06VP.png 5: https://pasteboard.co/7uk7vghdWT0w.png 6: https://pasteboard.co/YArBvWdc32Go.png

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