CMake project import - CPU usage due to QRegExp performance bug

Nicolás Alvarez nicolas.alvarez at
Sun Feb 27 20:48:59 UTC 2011

On 27/02/2011, Manuel Massing <m.massing at> wrote:
> Hi,
> while investigating cmake project parsing, I've found a huge performance
> problem in the QRegExp parser. Basically the matching of a single regular
> expression pegs my CPU at 100% for nearly 2 minutes (i5 at 2.6 GHZ),
> This single regular expression accounts for nearly all of the project import
> time!



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