I have problems related to performance in a Wordpress site.
I did a profiling and noticed that a function associated to a filter:
add_filter('sidebars_widgets', 'otw_sidebars_widgets', 100000);
(in a plugin directory)
the execution process enter to this function (otw_sidebars_widgets) several times, more than 100!
I put a code to force to enter only once, and ... the associated plugin works well, the page render fast, visually nothing change, so 1 execution was enough.
Why this happened, could be happened with other filters as well? this behavior is normal?