Switch to nvidia-smi to reduce CPU load when fetching GPU temperatures #162
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At least on one Intel systems (i7-8700K/delidded/watercooled) the display of the GPU temperature of NVIDIA cards caused perceptible spikes in CPU utilization, frequency and temperature of individual cores. This was eventually tracked down to nvidia-settings being substantially slower and, more importantly, computationally intensive than nvidia-smi. Switch the nvidiaUtil implementation to use nvidia-smi. In the process, simplify the label parsing and label vs. temperature code because nvidia-smi allows us greater control over the output.
This was referenced Apr 20, 2020
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At least on one Intel systems (i7-8700K/delidded/watercooled) the display of the GPU temperature of NVIDIA cards caused perceptible spikes in CPU utilization, frequency and temperature of individual cores.
This was eventually tracked down to
nvidia-settingsbeing substantially slower and, more importantly, computationally intensive thannvidia-smi.Switch the implementation of
nvidiaUtil.jsto usenvidia-smi. In the process, simplify the label parsing and label vs. temperature code becausenvidia-smiallows us greater control over the output.nvidia-settings:nvidia-smi:Possibly-related: #116 ("How to allow for lower minimum values for CPU?")
Related: #161 ("[Feature Request] Add support for NVIDIA PRIME render offload", user mentions that nvidia-smi solves the issue)