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| author | William Cohen <wcohen@redhat.com> | 2009-01-28 16:03:01 -0500 |
|---|---|---|
| committer | William Cohen <wcohen@redhat.com> | 2009-01-28 16:03:01 -0500 |
| commit | ff90b2974f841b92434cb46d89c39f08d01cc966 (patch) | |
| tree | 72f653b6e9922ff727b6f747b87f222156d5b57e /testsuite/systemtap.examples/keyword-index.txt | |
| parent | ffaf6b84d9a3820d538e2d20df0e19e7fd0607d8 (diff) | |
| download | systemtap-steved-ff90b2974f841b92434cb46d89c39f08d01cc966.tar.gz systemtap-steved-ff90b2974f841b92434cb46d89c39f08d01cc966.tar.xz systemtap-steved-ff90b2974f841b92434cb46d89c39f08d01cc966.zip | |
Add the polling timeout example and update the catalog.
Diffstat (limited to 'testsuite/systemtap.examples/keyword-index.txt')
| -rw-r--r-- | testsuite/systemtap.examples/keyword-index.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/keyword-index.txt b/testsuite/systemtap.examples/keyword-index.txt index 8cafd43f..bf35f139 100644 --- a/testsuite/systemtap.examples/keyword-index.txt +++ b/testsuite/systemtap.examples/keyword-index.txt @@ -222,6 +222,18 @@ 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. + + = READ = io/iotime.stp - Trace Time Spent in Read and Write for Files |