[PATCH 32/37] perf report: Add callchain value option

From: Namhyung Kim Now -g/--call-graph option supports how to display callchain values. Possible values are 'percent', 'period' and 'count'. The percent is same as before and it's the default behavior. The period displays the raw period value rather than the percentage. The count displays the

[PATCH 32/37] perf report: Add callchain value option

From: Namhyung Kim Now -g/--call-graph option supports how to display callchain values. Possible values are 'percent', 'period' and 'count'. The percent is same as before and it's the default behavior. The period displays the raw period value rather than the percentage.