> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>
>> Ihor Radchenko <yantar92@posteo.net> writes:
>>
>>> Iñigo Serna <inigoserna@gmx.com> writes:
>>>
>>>> I attach a profiler report of opening the same HTML email 
>>>> with 
>>>> commit
>>>> #eab14d68b2e72b9a6b8b0cc67c9667c2bfbed4f5 reverted (ie, no 
>>>> memset, 
>>>>  no
>>>> for-loop either).
>>>
>>> what could provide more datapoints is compiling with -g3 and 
>>> then
>>> recording perf profile.
>>
>> That and maybe more samples with Emacs' profiler, i.e. run it 
>> say 100
>> times in a loop.
>
> Could you please also check with this diff?
>
> [2. text/x-patch; xxx.diff]...
>
>
> This kind of assumes that set-window-configuration is called in 
> a sort
> of tight loop, and that window matrix sizes actually don't 
> change.