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weblatency.d(1m) [osx man page]

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 ver- bose 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)

Check Out this Related Man Page

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

NAME
syscallbysysc.d - syscalls by syscall. Uses DTrace. SYNOPSIS
syscallbysysc.d DESCRIPTION
syscallbysysc.d is a DTrace OneLiner to a report of the number of each type of system call made. This is useful to identify which system call is the most common. Docs/oneliners.txt and Docs/Examples/oneliners_examples.txt in the DTraceToolkit contain this as a oneliner that can be cut-n-paste to run. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
This samples until Ctrl-C is hit. # syscallbysysc.d FIELDS
first field This is the system call type. Most have man pages in section 2. second field This is the count, the number of occurrances for this system call. DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
syscallbysysc.d will sample until Ctrl-C is hit. AUTHOR
Brendan Gregg [Sydney, Australia] SEE ALSO
procsystime(1M), dtrace(1M), truss(1) version 1.00 May 15, 2005 syscallbysysc.d(1m)
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