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/index.html | 3 +++ 1 file changed, 3 insertions(+) (limited to 'testsuite/systemtap.examples/index.html') diff --git a/testsuite/systemtap.examples/index.html b/testsuite/systemtap.examples/index.html index a5fddb4e..c485713c 100644 --- a/testsuite/systemtap.examples/index.html +++ b/testsuite/systemtap.examples/index.html @@ -112,6 +112,9 @@ 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/futexes.stp - System-Wide Futex Contention
    keywords: SYSCALL LOCKING FUTEX

    The script watches the futex syscall on the system. On exit the futexes address, the number of contentions, and the average time for each contention on the futex are printed from lowest pid number to highest.

    • -- cgit