EllisLab/CodeIgniter — comment on commit 649b02f3b6359ff3834a3d7492eb2302b22b5382
File:  line 0
By ishubin1:

$config['log_threshold'] = 1;
that' s the point, I suppose that
if ( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))
{
return FALSE;
}
must skip loggin but it does not