dvd.collector Posted October 22, 2015 Share Posted October 22, 2015 Hi all, I'm using the OE VM and have noticed that "qemu-system-x86" seems to use 20% of the cpu when the VM is running. This is even when the VM is not in use. Is this anything to be concerned about? top - 11:17:44 up 1:23, 1 user, load average: 0.49, 0.57, 2.55 Tasks: 230 total, 1 running, 229 sleeping, 0 stopped, 0 zombie Cpu(s): 2.9%us, 0.7%sy, 0.0%ni, 96.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 32977464k total, 31989720k used, 987744k free, 204180k buffers Swap: 0k total, 0k used, 0k free, 26279728k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11610 root 20 0 5140m 4.2g 17m S 21 13.2 0:22.50 qemu-system-x86 3702 nobody 20 0 1240m 189m 35m S 2 0.6 1:38.43 mono Quote Link to comment
jonp Posted October 22, 2015 Share Posted October 22, 2015 Hi all, I'm using the OE VM and have noticed that "qemu-system-x86" seems to use 20% of the cpu when the VM is running. This is even when the VM is not in use. Is this anything to be concerned about? top - 11:17:44 up 1:23, 1 user, load average: 0.49, 0.57, 2.55 Tasks: 230 total, 1 running, 229 sleeping, 0 stopped, 0 zombie Cpu(s): 2.9%us, 0.7%sy, 0.0%ni, 96.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 32977464k total, 31989720k used, 987744k free, 204180k buffers Swap: 0k total, 0k used, 0k free, 26279728k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11610 root 20 0 5140m 4.2g 17m S 21 13.2 0:22.50 qemu-system-x86 3702 nobody 20 0 1240m 189m 35m S 2 0.6 1:38.43 mono Well, is it causing a problem? Hard to gauge what's low vs. high usage because everyone's hardware is different and their load is different. Unless you're having a problem, I wouldn't worry about it. Quote Link to comment
dvd.collector Posted October 23, 2015 Author Share Posted October 23, 2015 Hi Jon, well being in the UK energy is pretty expensive, so wasting it isn't high on my priority list The 20% cpu use is when no-one is using the system at all, i.e. NO LOAD. It just sits there using 20% cpu constantly, which doesn't seem right to me? Quote Link to comment
jonp Posted October 23, 2015 Share Posted October 23, 2015 Hi Jon, well being in the UK energy is pretty expensive, so wasting it isn't high on my priority list The 20% cpu use is when no-one is using the system at all, i.e. NO LOAD. It just sits there using 20% cpu constantly, which doesn't seem right to me? How many CPU cores do you have allocated to the VM? Quote Link to comment
dvd.collector Posted October 23, 2015 Author Share Posted October 23, 2015 Hi Jon, well being in the UK energy is pretty expensive, so wasting it isn't high on my priority list The 20% cpu use is when no-one is using the system at all, i.e. NO LOAD. It just sits there using 20% cpu constantly, which doesn't seem right to me? How many CPU cores do you have allocated to the VM? 2 Quote Link to comment
jonp Posted October 23, 2015 Share Posted October 23, 2015 Hi Jon, well being in the UK energy is pretty expensive, so wasting it isn't high on my priority list The 20% cpu use is when no-one is using the system at all, i.e. NO LOAD. It just sits there using 20% cpu constantly, which doesn't seem right to me? How many CPU cores do you have allocated to the VM? 2 If you lower to 1, how does this impact performance for you / CPU usage? Quote Link to comment
dvd.collector Posted October 24, 2015 Author Share Posted October 24, 2015 Hi Jon, well being in the UK energy is pretty expensive, so wasting it isn't high on my priority list The 20% cpu use is when no-one is using the system at all, i.e. NO LOAD. It just sits there using 20% cpu constantly, which doesn't seem right to me? How many CPU cores do you have allocated to the VM? 2 If you lower to 1, how does this impact performance for you / CPU usage? Lowering to one, TOP shows the cpu use sitting at 15% constantly. So is it pretty much maxing out whatever cpu it is given, even when not being used? Quote Link to comment
jude Posted October 24, 2015 Share Posted October 24, 2015 I had a similar issue with my Win10 VM using 20% cpu when idle with nothing running. I used this fix and now my CPU use at idle is under 5%. http://winsupersite.com/windows-10/show-me-tips-causing-high-cpu-utilization-windows-10 It worked for me but YMMV. Quote Link to comment
saarg Posted October 24, 2015 Share Posted October 24, 2015 I had a similar issue with my Win10 VM using 20% cpu when idle with nothing running. I used this fix and now my CPU use at idle is under 5%. http://winsupersite.com/windows-10/show-me-tips-causing-high-cpu-utilization-windows-10 It worked for me but YMMV. He does npt run windows 10, but an Openelec VM Quote Link to comment
dvd.collector Posted October 28, 2015 Author Share Posted October 28, 2015 Yeah its the openelec VM. Jon, did i read somewhere that hardware acceleration is disabled for AMD cards in this VM? Could that be the cause of the cpu usage? i.e its simply displaying the Kodi interface that uses all of the CPU? Quote Link to comment
jonp Posted October 28, 2015 Share Posted October 28, 2015 Yeah its the openelec VM. Jon, did i read somewhere that hardware acceleration is disabled for AMD cards in this VM? Could that be the cause of the cpu usage? i.e its simply displaying the Kodi interface that uses all of the CPU? Could be. It's really hard to troubleshoot this right now because OE is still in beta (I'm honestly a little shocked it's taking them this long to get to 6.0 final, but I know that's probably pot calling kettle black there ;-). If you have an NVIDIA GPU around, you could try a quick swap to see if it has an impact. Quote Link to comment
ljm42 Posted October 29, 2015 Share Posted October 29, 2015 I'm honestly a little shocked it's taking them this long to get to 6.0 final, but I know that's probably pot calling kettle black there ;-). best.comment.ever. LOL Quote Link to comment
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