From cc20d8532b08f7755642ecb30f22126f7ac332c2 Mon Sep 17 00:00:00 2001 From: Eugene Teo Date: Fri, 3 Apr 2009 13:47:57 -0400 Subject: new process/errsnoop.stp sample script --- testsuite/systemtap.examples/index.html | 5 ++- testsuite/systemtap.examples/index.txt | 18 +++++++-- testsuite/systemtap.examples/keyword-index.html | 13 ++++++- testsuite/systemtap.examples/keyword-index.txt | 30 +++++++++++++-- testsuite/systemtap.examples/process/errsnoop.meta | 7 ++++ testsuite/systemtap.examples/process/errsnoop.stp | 43 ++++++++++++++++++++++ 6 files changed, 105 insertions(+), 11 deletions(-) create mode 100644 testsuite/systemtap.examples/process/errsnoop.meta create mode 100644 testsuite/systemtap.examples/process/errsnoop.stp (limited to 'testsuite/systemtap.examples') diff --git a/testsuite/systemtap.examples/index.html b/testsuite/systemtap.examples/index.html index 0f4b2572..9880c5b6 100644 --- a/testsuite/systemtap.examples/index.html +++ b/testsuite/systemtap.examples/index.html @@ -60,7 +60,7 @@ keywords: IO io/ioblktime.stp - Average Time Block IO Requests Spend in Queue
keywords: IO
-

The ioblktime.stp script tracks the amount of time that each block IO requests spend waiting for completion. The script compute the average time waiting time for block IO per device and prints list every 10 seconds. In some cases there can be too many oustanding block IO operations and the script may exceed the default number of MAXMAPENTRIES allowed. In this case the allowed number can be increased with "-DMAXMAPENTRIES=10000" option on the stap command line.

+

The ioblktime.stp script tracks the amount of time that each block IO requests spend waiting for completion. The script computes the average time waiting time for block IO per device and prints list every 10 seconds. In some cases there can be too many oustanding block IO operations and the script may exceed the default number of MAXMAPENTRIES allowed. In this case the allowed number can be increased with "-DMAXMAPENTRIES=10000" option on the stap command line.

  • io/iostats.stp - List Executables Reading and Writing the Most Data
    keywords: IO PROFILING

    The iostat.stp script measures the amount of data successfully read and written by all the executables on the system. The output is sorted from most greatest sum of bytes read and written by an executable to the least. The output contains the count of operations (opens, reads, and writes), the totals and averages for the number of bytes read and written.

    • @@ -91,6 +91,9 @@ keywords: NETWORK network/tcp_connections.stp - Track Creation of Incoming TCP Connections
    keywords: NETWORK TCP SOCKET

    The tcp_connections.stp script prints information for each new incoming TCP connection accepted by the computer. The information includes the UID, the command accepting the connection, the PID of the command, the port the connection is on, and the IP address of the originator of the request.

    +
  • 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/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.

    • diff --git a/testsuite/systemtap.examples/index.txt b/testsuite/systemtap.examples/index.txt index e31baf4f..96ac5ab0 100644 --- a/testsuite/systemtap.examples/index.txt +++ b/testsuite/systemtap.examples/index.txt @@ -56,10 +56,10 @@ io/ioblktime.stp - Average Time Block IO Requests Spend in Queue keywords: io The ioblktime.stp script tracks the amount of time that each block IO - requests spend waiting for completion. The script compute the average - time waiting time for block IO per device and prints list every 10 - seconds. In some cases there can be too many oustanding block IO - operations and the script may exceed the default number of + requests spend waiting for completion. The script computes the + average time waiting time for block IO per device and prints list + every 10 seconds. In some cases there can be too many oustanding + block IO operations and the script may exceed the default number of MAXMAPENTRIES allowed. In this case the allowed number can be increased with "-DMAXMAPENTRIES=10000" option on the stap command line. @@ -166,6 +166,16 @@ keywords: network tcp socket originator of the request. +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/futexes.stp - System-Wide Futex Contention keywords: syscall locking futex diff --git a/testsuite/systemtap.examples/keyword-index.html b/testsuite/systemtap.examples/keyword-index.html index 75768709..78d467cd 100644 --- a/testsuite/systemtap.examples/keyword-index.html +++ b/testsuite/systemtap.examples/keyword-index.html @@ -39,7 +39,7 @@

    Examples by Keyword

    -

    BACKTRACE CALLGRAPH CPU DISK FUNCTIONS FUTEX GRAPH INTERRUPT IO LOCKING MEMORY NETWORK PER-PROCESS PROFILING READ SCHEDULER SIGNALS SIMPLE SLEEP SOCKET SYSCALL TCP TIME TRACE TRAFFIC USE WAIT4 WRITE

    +

    BACKTRACE CALLGRAPH CPU DISK FUNCTIONS FUTEX GRAPH INTERRUPT IO LOCKING MEMORY NETWORK PER-PROCESS PROCESS PROFILING READ SCHEDULER SIGNALS SIMPLE SLEEP SOCKET SYSCALL TCP TIME TRACE TRAFFIC USE WAIT4 WRITE

    BACKTRACE

    +

    PROCESS

    +

    PROFILING