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author | Frank Ch. Eigler <fche@elastic.org> | 2008-04-24 13:55:34 -0400 |
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committer | Frank Ch. Eigler <fche@elastic.org> | 2008-04-24 13:55:34 -0400 |
commit | fe44e686c32ccb684bd5ec6df57aed00532fc024 (patch) | |
tree | 260953c84c8679572d65bf83a65884050f91d2f7 /testsuite/systemtap.examples/small_demos/kmalloc.stp | |
parent | f72154b33e67069cd7c308d24255574b9fbacb1d (diff) | |
parent | 478e10649195945adf7153fe5254932df1e2a902 (diff) | |
download | systemtap-steved-fe44e686c32ccb684bd5ec6df57aed00532fc024.tar.gz systemtap-steved-fe44e686c32ccb684bd5ec6df57aed00532fc024.tar.xz systemtap-steved-fe44e686c32ccb684bd5ec6df57aed00532fc024.zip |
Merge branch 'master' of ssh://sources.redhat.com/git/systemtap
* 'master' of ssh://sources.redhat.com/git/systemtap:
Made kernel 2.6.25 changes in task_finder.c.
Move examples to testsuite/systemtap.examples
Diffstat (limited to 'testsuite/systemtap.examples/small_demos/kmalloc.stp')
-rwxr-xr-x | testsuite/systemtap.examples/small_demos/kmalloc.stp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/small_demos/kmalloc.stp b/testsuite/systemtap.examples/small_demos/kmalloc.stp new file mode 100755 index 00000000..9157928d --- /dev/null +++ b/testsuite/systemtap.examples/small_demos/kmalloc.stp @@ -0,0 +1,22 @@ +#! /usr/bin/env stap + +# Using statistics to examine kernel memory allocations + +global kmalloc + +probe kernel.function("__kmalloc") { + kmalloc <<< $size +} + +# Exit after 10 seconds +probe timer.ms(10000) { exit () } + +probe end { + printf("Count: %d allocations\n", @count(kmalloc)) + printf("Sum: %d Kbytes\n", @sum(kmalloc)/1000) + printf("Average: %d bytes\n", @avg(kmalloc)) + printf("Min: %d bytes\n", @min(kmalloc)) + printf("Max: %d bytes\n", @max(kmalloc)) + print("\nAllocations by size in bytes\n") + print(@hist_log(kmalloc)) +} |