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#!/usr/bin/stap
global huge_clear
probe kernel.function("clear_huge_page").return
{
huge_clear [execname(), pid()]
<<< (gettimeofday_us() - @entry(gettimeofday_us()))
}
probe begin { printf("Collecting data... press Ctrl-C to stop.\n") }
probe end
{
printf("\n")
foreach([name, p] in huge_clear-) {
printf("%16s(%5d) count=%d sum(us)=%d avg(us)=%d\n",
name, p, @count(huge_clear[name,p]),
@sum(huge_clear[name,p]),
@avg(huge_clear[name,p]))
}
}