Make perf stat use group read if there are groups
defined. The group read will get the values for all
member of groups within a single syscall instead of
calling read syscall for every event.
We can see considerable less amount of kernel cycles
spent on single group read, than reading each
Make perf stat use group read if there are groups
defined. The group read will get the values for all
member of groups within a single syscall instead of
calling read syscall for every event.
We can see considerable less amount of kernel cycles
spent on single group read, than reading each
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