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#!/usr/bin/env ktap
# This ktap script samples stacktrace of system per 10us,
# you can use generated output to make a flame graph.
#
# Flame Graphs:
# http://dtrace.org/blogs/brendan/2012/03/17/linux-kernel-performance-flame-graphs/
s = aggr_table()
profile-10us {
s[backtrace()] = count()
}
tick-60s {
exit()
}
trace_end {
for (k, v in pairs(s)) {
print(k)
print(v)
print()
}
}
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