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Having ConEmu visible with git-bash causes dwm.exe to use significant CPU time #830
Using the most recent version 160724 (but effect is also present in versions a year older).
ConEmu build: 160724 x64
With ConEmu window visible, or behind another window, or maximized, Task Manager shows CPU of dwm.exe to be 10%-20% of one core.
As soon as ConEmu window is minimized, it drops to 0%.
This is with ConEmu window doing nothing, single tab open, waiting at prompt.
If I close git-bash, and open a cmd tab instead, this does not happen.
Steps to reproduce
High CPU use of dwm.exe while window is not minimized
No CPU use of dwm.exe
Transparency option is not active in my case though, I will try investigate further in that direction
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I'm not sure if it's the same issue, but I'm seeing high dwm CPU usage when the active tab has been renamed, e.g. via "-new_console:t:VS2015x64". Switching to a tab with a default name (no new_console parameter) reduces the CPU usage.
The same thing happens when I rename a tab via the context menu, CPU usage goes up. When I set the default name (using a blank name), CPU usage goes down.
Transparency is disabled.
Win7 x64 Ultimate. Looking at the logfiles, SetTitle is called every 10 milliseconds when a tab with custom title is active:
0:48:31.370 SetTitle: hWnd=x8410fc Title=