[mythtv-users] compile times for mythtv?

[Stuart Auchterlonie]

On 16/11/2020 17:05, John P Poet wrote:
> On Mon, Nov 16, 2020 at 10:00 AM James Abernathy <jfabernathy at gmail.com 
> <mailto:jfabernathy at gmail.com>> wrote:
> 
>     With my old system, building from source would take 10-15 minutes.
> 
>     However, with my new system it takes only 40 seconds.
> 
>     The hardware is Ryzen 5 3600, B550 motherboard with attached M.2
>     2280 NVMe SSD.
> 
>     I ran it once with make -j 6 and it ran in 5 minutes.  Then I
>     completely deleted the build/mythtv directories and recloned
>     mythtv.git again. However, this time I used make -j 12.
>     That seems too good to be true.
> 
>     Jim A
> 
> 
> If you want a truly fresh environment to test with, also make sure you 
> delete your ~/.ccache directory between builds.
> 

That trashes your ccache config. Use `ccache -C`


Regards
Stuart