From 7f79ea13a0f64573ce13353257d322ae49ef0c27 Mon Sep 17 00:00:00 2001 From: William Cohen Date: Thu, 24 Apr 2008 12:20:13 -0400 Subject: Move examples to testsuite/systemtap.examples --- .../systemtap.examples/small_demos/kmalloc2.stp | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100755 testsuite/systemtap.examples/small_demos/kmalloc2.stp (limited to 'testsuite/systemtap.examples/small_demos/kmalloc2.stp') diff --git a/testsuite/systemtap.examples/small_demos/kmalloc2.stp b/testsuite/systemtap.examples/small_demos/kmalloc2.stp new file mode 100755 index 00000000..2622dd2f --- /dev/null +++ b/testsuite/systemtap.examples/small_demos/kmalloc2.stp @@ -0,0 +1,26 @@ +#! /usr/bin/env stap + +# Using statistics and maps to examine kernel memory allocations + +global kmalloc + +probe kernel.function("__kmalloc") { + kmalloc[execname()] <<< $size +} + +# Exit after 10 seconds +probe timer.ms(10000) { exit () } + +probe end { + foreach ([name] in kmalloc) { + printf("Allocations for %s\n", name) + printf("Count: %d allocations\n", @count(kmalloc[name])) + printf("Sum: %d Kbytes\n", @sum(kmalloc[name])/1000) + printf("Average: %d bytes\n", @avg(kmalloc[name])) + printf("Min: %d bytes\n", @min(kmalloc[name])) + printf("Max: %d bytes\n", @max(kmalloc[name])) + print("\nAllocations by size in bytes\n") + print(@hist_log(kmalloc[name])) + printf("-------------------------------------------------------\n\n"); + } +} -- cgit