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sysdiagnose(1)            BSD General Commands Manual           sysdiagnose(1)

NAME
     sysdiagnose -- gathers system-wide diagnostic information helpful in investigating system performance
     issues.

SYNOPSIS
     sysdiagnose -h
     sysdiagnose [-f results_directory] [-t] [-q] [-b] [process_name | pid]

DESCRIPTION
     sysdiagnose tool gathers system diagnostic information helpful in investigating system performance
     issues. A great deal of information is harvested, spanning system state and configuration.  sysdiagnose
     needs to be run as root.  sysdiagnose can be triggered upon pressing a special key chord; this is cur-rently currently
     rently Control-Option-Command-Shift-Period.

   What sysdiagnose Collects:
           •   A spindump of the system
           •   Several seconds of fs_usage ouput
           •   Several seconds of top output
           •   Data about kernel zones
           •   Status of loaded kernel extensions
           •   Resident memory usage of user processes
           •   All system logs, kernel logs, opendirectory log, windowserver log, and log of power manage-ment management
               ment events
           •   A System Profiler report
           •   All spin and crash reports
           •   Disk usage information
           •   I/O Kit registry information
           •   Network status
           •   If a specific process is supplied as an argument: list of malloc-allocated buffers in the
               process's heap is collected
           •   If a specific process is supplied as an argument: data about unreferenced malloc buffers in
               the process's memory is collected
           •   If a specific process is supplied as an argument: data about the virtual memory regions allo-cated allocated
               cated in the process

OPTIONS
     -h       Print full usage.

     -f results_directory
              Specify the directory where the results will be stored. The default results directory is
              /var/tmp.

     -q       Skips calling footprint.

     -t       Enable "Thorough Mode". See below.

     -b       Do not show the resulting archive in a Finder window upon completion.

     process_name | pid
              If a single process appears to be slowing down the system, passing in the process name or ID
              as the argument gathers additional process-specific diagnostic data.

THOROUGH MODE
     sysdiagnose can be run in a "Thorough Mode" in which standard data is gathered as well as a kernel
     trace. Enabling "Thorough Mode" for the command-line sysdiagnose and key-chord sysdiagnose are indepen-dent independent
     dent and are performed as follows:

     For "Thorough Mode" in the command-line sysdiagnose use the "-t" flag.

     To enable "Thorough Mode" for special key-chord launches of sysdiagnose execute "touch /var/tmp/.thor-oughsysdiagnose" /var/tmp/.thoroughsysdiagnose"
     oughsysdiagnose"

     To disable "Thorough Mode" for special key-chord launches of sysdiagnose execute "rm /var/tmp/.thor-oughsysdiagnose" /var/tmp/.thoroughsysdiagnose"
     oughsysdiagnose"

   Note:
     Gathering the kernel trace can increase the size of sysdiagnose output by hundreds of MB as well as
     increase the time for sysdiagnose to complete.

EXIT STATUS
     sysdiagnose exits with status 0 if there were no internal errors encountered during the diagnostic, or
     >0 when an error unrelated to external state occurs or unusable input is provided by the user.

Darwin                         October 11, 2013                         Darwin