Thread:Project:Support desk/Saving Pages takes Over 40 Seconds/reply (12)

No. Profiling is as simple as it gets (Usually its only necessary on really big sites, so it doesn't get documented as much).

Other things you can try - see if ?action=purge takes same amount of time as an edit (If so probably the issue is parsing time, otherwise, the db theory looks more likely).

Also try disabling all extensions, and see if that makes a difference (Its possible for a poorly implemented extension to have an averse affect on how much time mediawiki takes)