[Interest] Qt 6 is much more faster to compile from source
Thiago Macieira
thiago.macieira at intel.com
Tue Sep 7 19:50:25 CEST 2021
On Tuesday, 7 September 2021 02:52:49 PDT Tor Arne Vestbø wrote:
> Good to hear!
>
> Part of it comes from CMake generating ninja files instead of Makefiles.
Our qmake-generated Makefiles weren't that slow. Nothing compared to Automake,
at least.
Qt 5 qtbase/src build:
Build succeeded, took 3:01.027s (total run time 3:01.027s), 2388.2% CPU usage
Qt 6 equivalent with Ninja:
Build succeeded, took 222.01s (2385% CPU usage)
3:01.027 = 181.027s (sorry, different wrapper, so they print time differently)
Same compiler, same otherwise-idle machine, icecc disabled. The configuration
on both builds is meant to be the same, full build.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel DPG Cloud Engineering
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