I'm running CQRLog 2.3.0 (002) on Ubuntu 16.04.2 LTS with a i7-5600U CPU.
I've been running CQRLog for many hours, and when idle and in background, it consumes 29% of the CPU.
Restarting CQRLog brings the CPU utilization back down to normal. I do use the Remote Mode for WSJT-X, but when I relaunched and re-enabled it, the CPU usage still stayed low.
Here's output from top from when the issue was occuring:




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