November 23, 20232 yr Thought I would share an issue I ran into recently. I have a windows11 and windows10 VM. When I set up the memory I set initial memory 4GB max memory 16GB expecting it to use more if it needed it. Well this does NOT work. At Idle on a fresh install of windows under task manager the machine was saying memory was utilized at 90% even though it showed 16GB of RAM available. Barely anything was running. This happened under both windows 11 and windows 10. It took me a while to even notice this. The machine ran hot under mild work loads bouncing off 90c. Also the performance was terrible. Once I set the initial memory to the same as max memory. This problem went away and it showed 8% memory utilization at idle. After changing this setting my cpu temp also went to 70c with cpu utilization at near 100%. I use this machine for transcoding. I went from 4-5FPS up to 20FPS. HUGE performance improvement.
November 23, 20232 yr Community Expert 11 minutes ago, xokia said: Thought I would share an issue I ran into recently. I have a windows11 and windows10 VM. When I set up the memory I set initial memory 4GB max memory 16GB expecting it to use more if it needed it. Well this does NOT work. At Idle on a fresh install of windows under task manager the machine was saying memory was utilized at 90% even though it showed 16GB of RAM available. Barely anything was running. This happened under both windows 11 and windows 10. It took me a while to even notice this. The machine ran hot under mild work loads bouncing off 90c. Also the performance was terrible. Once I set the initial memory to the same as max memory. This problem went away and it showed 8% memory utilization at idle. After changing this setting my cpu temp also went to 70c with cpu utilization at near 100%. I use this machine for transcoding. I went from 4-5FPS up to 20FPS. HUGE performance improvement. Can you post diagnostics.
November 24, 20232 yr 14 hours ago, xokia said: At Idle on a fresh install of windows under task manager the machine was saying memory was utilized at 90% even though it showed 16GB of RAM available. This is normal, take a look here: https://forums.unraid.net/topic/120530-dynamic-memory-for-virtual-machines-how-is-this-actually-designed-to-work/?do=findComment&comment=1238897 and https://forums.unraid.net/topic/120530-dynamic-memory-for-virtual-machines-how-is-this-actually-designed-to-work/?do=findComment&comment=1239100
November 24, 20232 yr Author 5 hours ago, JorgeB said: This is normal, take a look here: If its normal it kills performance. I use handbrake on this machine and under normal condition HB would consume about 9GB of memory. With this setup HB was allowed 300MB of memory my transcodes slowed to a crawl. I am guessing swap disk was going crazy. Should probably just remove ballooning from the windows templates. It wont do what people want it to do. I've used this feature under proxmox and vastly different experience. Edited November 24, 20232 yr by xokia
November 24, 20232 yr Author 20 hours ago, SimonF said: Can you post diagnostics. I can recreate it after my latest batch of transcodes completes. But if the performance sucking "feature" is normal seems rather pointless. Edited November 24, 20232 yr by xokia
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