hi, all I have one fix need for review. Please check the below for details, thanks!
https://issues.apache.org/ooo/show_bug.cgi?id=120575 Root cause: in xls loading procedure, ScPatternAttr::operator== occupies too much time, in this function, two sfxitemset are compared by memcmp(...), this is a time consuming operation. Resolution: Instead of memcmp(...), two sfxitemset can be compared 'quickly' by the hashkey only. And a function SfxItemSet::QuickCompare( SfxItemSet & rCmp) instead of EqualPatternSets(...). Test result: In ScPatternAttr::operator==, SfxItemSet::QuickCompare( SfxItemSet & rCmp) will be called 3141717 times, including 3114837 times only comparing hash key and directly return, memcmp(...). will be called 26880 times(sample file).
