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64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
.TH weblatency.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
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.SH NAME
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weblatency.d \- website latency statistics. Uses DTrace.
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.SH SYNOPSIS
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.B weblatency.d
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.SH DESCRIPTION
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This prints statistics for hostnames that browers have set GET requests
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for, in particular latency by hostname.
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The latency measured is from the browser sending the GET
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request to when the browser begins to recieve the response. It
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is an overall response time for the client, and encompasses
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connection speed delays, DNS lookups, proxy delays, and web server
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response time.
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This is written as an experimental tool, and may not work at all with
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your browser.
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Since this uses DTrace, only the root user or users with the
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dtrace_kernel privilege can run this command.
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.SH OS
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Solaris
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.SH STABILITY
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unstable - depends on browser implementation.
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.SH EXAMPLES
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.TP
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Print report after Ctrl-C is hit,
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#
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.B weblatency.d
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.PP
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.SH FIELDS
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.TP
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HOST
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hostname from URL
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.TP
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NUM
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number of GETs
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.TP
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AVGTIME(ms)
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Average time for response, ms
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.TP
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MAXTIME(ms)
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Maximum time for response, ms
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.PP
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.SH NOTES
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See the source code for the "BROWSER" variable, which sets the browser
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to trace (currently set to "mozilla-bin").
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.PP
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.SH IDEA
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Bryan Cantrill (who wrote an elegant version for Sol 10 update 1)
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.PP
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.SH DOCUMENTATION
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See the DTraceToolkit for further documentation under the
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Docs directory. The DTraceToolkit docs may include full worked
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examples with verbose descriptions explaining the output.
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.SH EXIT
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weblatency.d will sample until Ctrl\-C is hit.
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.SH AUTHOR
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Brendan Gregg
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[Sydney, Australia]
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.SH SEE ALSO
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dtrace(1M)
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