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Diffstat (limited to 'testsuite/systemtap.examples/index.txt')
| -rw-r--r-- | testsuite/systemtap.examples/index.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/index.txt b/testsuite/systemtap.examples/index.txt index fce068b8..f45f4c43 100644 --- a/testsuite/systemtap.examples/index.txt +++ b/testsuite/systemtap.examples/index.txt @@ -211,3 +211,15 @@ keywords: profiling user-space and kernel-space. +profiling/timeout.stp - Show Processes Doing Polling Operations +keywords: profiling + + The timeout.stp script is based on a blog entry + (http://udrepper.livejournal.com/19041.html) mentioning a need for a + tool to help developers find applications that are polling. The + timeout.stp script monitors systemcall used for polling and records + the systemcalls that timed out rather than returned because some + action occurred. The script updates the screen once a second with the + top twenty processes. + + |