This manual page is for Mac OS X version 10.6.3

If you are running a different version of Mac OS X, view the documentation locally:

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • For more information about the manual page format, see the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Reference Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.


weblatency.d(1m)                                USER COMMANDS                               weblatency.d(1m)



NAME
       weblatency.d - website latency statistics. Uses DTrace.

SYNOPSIS
       weblatency.d

DESCRIPTION
       This prints statistics for hostnames that browers have set GET requests for, in particular latency by
       hostname.

       The latency measured is from the browser sending the GET  request  to  when  the  browser  begins  to
       recieve the response. It is an overall response time for the client, and encompasses connection speed
       delays, DNS lookups, proxy delays, and web server response time.

       This is written as an experimental tool, and may not work at all with your browser.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES
       Print report after Ctrl-C is hit,
              # weblatency.d


FIELDS
       HOST   hostname from URL

       NUM    number of GETs

       AVGTIME(ms)
              Average time for response, ms

       MAXTIME(ms)
              Maximum time for response, ms


NOTES
       See the source code for the "BROWSER" variable, which sets the browser to  trace  (currently  set  to
       "mozilla-bin").


IDEA
       Bryan Cantrill (who wrote an elegant version for Sol 10 update 1)


DOCUMENTATION
       See  the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may
       include full worked examples with verbose descriptions explaining the output.

EXIT
       weblatency.d will sample until Ctrl-C is hit.

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       dtrace(1M)




version 0.60                                    Nov 30, 2005                                weblatency.d(1m)

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation with the feedback links below.
Bug reports
Report bugs in the functionality of the described tool or API through Bug Reporter.
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.

Did this document help you? Yes It's good, but... Not helpful...