From e6b653c8c2e63d54a3b33036130a6d8272680f54 Mon Sep 17 00:00:00 2001 From: William Cohen Date: Fri, 19 Jun 2009 11:33:29 -0400 Subject: Add froktracker.stp example. --- testsuite/systemtap.examples/keyword-index.html | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'testsuite/systemtap.examples/keyword-index.html') diff --git a/testsuite/systemtap.examples/keyword-index.html b/testsuite/systemtap.examples/keyword-index.html index e144337c..9852c992 100644 --- a/testsuite/systemtap.examples/keyword-index.html +++ b/testsuite/systemtap.examples/keyword-index.html @@ -210,6 +210,9 @@ keywords: NETWORK process/errsnoop.stp - tabulate system call errors
keywords: PROCESS SYSCALL

The script prints a periodic tabular report about failing system calls, by process and by syscall failure. The first optional argument specifies the reporting interval (in seconds, default 5); the second optional argument gives a screen height (number of lines in the report, default 20).

+
  • process/forktracker.stp - Trace Creation of Processes
    +keywords: PROCESS SCHEDULER
    +

    The forktracker.stp script prints out a time-stamped entry showing each fork and exec operation on the machine. This can be useful for determine what process is creating a flurry of short-lived processes.

  • process/schedtimes.stp - Track Time Processes Spend in Various States using Tracepoints
    keywords: PROCESS SCHEDULER TIME TRACEPOINT

    The schedtimes.stp script instruments the scheduler to track the amount of time that each process spends running, sleeping, queued, and waiting for io. On exit the script prints out the accumulated time for each state of processes observed. Optionally, this script can be used with the '-c' or '-x' options to focus on a specific PID.

    • @@ -243,6 +246,9 @@ keywords: SYSCALL SCHEDULER