Hi,
I just downloaded Qt-Creator 4.3.0 b1 for some testing.
What immediately struck me was the ongoing action in one thread that consumes about half a CPU
core's performance.
The stacktrace (taken with ProcessExplorer) is
0 ntdll.dll!ZwRequestWaitReplyPort+0xa
1 dwmapi.dll!DwmSetWindowAttribute+0x1cc
2 dwmapi.dll!DwmSetWindowAttribute+0x3d0
3 dwmapi.dll!Ordinal132+0x97a
4 dwmapi.dll!DwmSetWindowAttribute+0x2cc
5 dwmapi.dll!DwmFlush+0x92
6 ig75icd64.dll!DrvValidateVersion+0x139a
7 kernel32.dll!BaseThreadInitThunk+0xd
8 ntdll.dll!RtlUserThreadStart+0x21
Checking on the web I found an entry on the Team Speak forum where they observed the same issue but
with a different Qt-based software.
As described there, I can kill the thread without noticing a real problem when
using Qt-Creator.
I double checked this with both 32bit and 64bit. The problem occurrs in both
versions.
My machine runs Win7
Any ideas?
TIA
Tilman
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