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Directory :  /usr/share/systemtap/examples/profiling/

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Current File : //usr/share/systemtap/examples/profiling/fntimes.meta
title: Show Functions Taking Longer Than Usual
name: fntimes.stp
keywords: _best profiling
exit: user-controlled
description: The fntimes.stp script monitors the execution time history of a given function family (assumed non-recursive).  Each time (beyond a warmup interval) is then compared to the historical maximum.  If it exceeds a certain threshold (250%), a message is printed.
test_check: stap -p4 fntimes.stp 'kernel.function("sys_*")'
test_installcheck: stap fntimes.stp 'kernel.function("sys_*")' -T 7

haha - 2025