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author | Frank Ch. Eigler <fche@elastic.org> | 2008-04-25 16:33:24 -0400 |
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committer | Frank Ch. Eigler <fche@elastic.org> | 2008-04-25 16:33:24 -0400 |
commit | 76d647dc1fdf1d6bb4397f4a3b819003492dfda6 (patch) | |
tree | 51b9d7a1f0ee75a41c487828d5e62c6a70b7fd28 /testsuite/systemtap.examples/small_demos/kmalloc2.stp | |
parent | c47ccf304e6560cb50c86c2a5213c8de56678449 (diff) | |
parent | 9f99b110fbee8a6935ca60c152cc3c7cd809461b (diff) | |
download | systemtap-steved-76d647dc1fdf1d6bb4397f4a3b819003492dfda6.tar.gz systemtap-steved-76d647dc1fdf1d6bb4397f4a3b819003492dfda6.tar.xz systemtap-steved-76d647dc1fdf1d6bb4397f4a3b819003492dfda6.zip |
Merge branch 'master' of ssh://sources.redhat.com/git/systemtap into pr6429-comp-unwindsyms
* 'master' of ssh://sources.redhat.com/git/systemtap:
simplify systemtap.spec configuration vars
Handles markers with no format string.
Fixed task_finder.c kernel 2.6.25 change.
PR6454: fix "stap -l" listing of space-laden probe point names
Move examples to testsuite/systemtap.examples.
PR6451: avoid one class of staprun shutdown deadlock (module/.ctl filehandle = 0)
Made kernel 2.6.25 changes in task_finder.c.
Move examples to testsuite/systemtap.examples
PR6416: extend probing blacklist with more init/exit sections
Diffstat (limited to 'testsuite/systemtap.examples/small_demos/kmalloc2.stp')
-rwxr-xr-x | testsuite/systemtap.examples/small_demos/kmalloc2.stp | 26 |
1 files changed, 26 insertions, 0 deletions
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"); + } +} |