On Tue, Dec 22, 2020 at 09:11:31AM +0800, Jin Yao wrote: > The event default list includes the most common events which are widely > used by users. But with -e option, the current perf only counts the events > assigned by -e option. Users may want to collect some extra events with > the default list. For this case, users have to manually add all the events > from the default list. It's inconvenient. Also, users may don't know how to > get the default list. > > It's better to add a new option to append default list to the -e events. > The new option is '--add-default'.
A more concise syntax would be -e +event The + would apply to the whole event list if there are multiple. and maybe -event too to remove something from the default list. -Andi