From ff90b2974f841b92434cb46d89c39f08d01cc966 Mon Sep 17 00:00:00 2001 From: William Cohen Date: Wed, 28 Jan 2009 16:03:01 -0500 Subject: Add the polling timeout example and update the catalog. --- testsuite/systemtap.examples/keyword-index.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'testsuite/systemtap.examples/keyword-index.txt') 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 -- cgit