Commit early and often. This should merge all changes into

ab from 1.3 into 2.0. SSL work not completed; I need to move
some of the autoconf detection of mod_wtls to a more central
place first. Any suggestions appreciated :-)

PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88628 13f79535-47bb-0310-9956-ffa450edef68

docs/man/ab.8

@@ -57,6 +57,16 @@ ab \- Apache HTTP server benchmarking tool
 [
 .B \-k
 ] [
+.B \-e
+] [
+.B \-q
+] [
+.B \-S
+] [
+.B \-i
+] [
++ .B \-s
+] [
 .BI \-n " requests"
 ] [
 .BI \-t " timelimit"
@@ -75,12 +85,20 @@ ab \- Apache HTTP server benchmarking tool
 ] [
 .BI \-T " content-type"
 ] [
+.BI \-X " proxy [ :port ]"
+] [
 .BI \-v " verbosity"
 ]
 ] [
 .BI \-w " output HTML"
 ]
 ] [
+.BI \-g " output GNUPLOT"
+]
+] [
+.BI \-e " output CSV"
+]
+] [
 .BI \-x " <table> attributes"
 ]
 ] [
@@ -89,7 +107,7 @@ ab \- Apache HTTP server benchmarking tool
 ] [
 .BI \-z " <td> attributes"
 ]
-.I [http://]hostname[:port]/path 
+.I [http[s]://]hostname[:port]/path 
 
 .B ab
 [
@@ -118,6 +136,28 @@ benchmarking results.
 .TP 12
 .BI \-t " timelimit"
 Maximum number of seconds to spend for benchmarking. This implies
+.B \-d
+Do not display the "percentage served within XX [ms] table". (legacy
+support).
+.TP 12
+.B \-S
+Do not display the median and standard deviation values, nor display
+the warning/error messages when the average and median are more than
+one or two times the standard deviation apart. And default to the 
+min/avg/max values. (legacy support).
+.TP 12
+.B \-s
+When compiled in (bb -h will show you) use the SSL protected
+.B https
+rather than the 
+.B http
+protocol. This feature is experimental and
+.B very
+rudimentary. You propably do not want to use it.
+.TP 12
+.B \-k 
+Enable the HTTP KeepAlive feature; that is, perform multiple requests
+within one HTTP session. Default is no KeepAlive.
 a 
 .B \-n 
 .B 50000
@@ -140,7 +180,11 @@ The string is sent regardless of whether the server needs it; (i.e., has
 sent an 401 authentication needed).
 
 .TP 12
-.BI \-p " Proxy-Authentication username:password"
+.BI \-X " proxy[:port]"
+Route all requests through the proxy (at optional port).
+
+.TP 12
+.BI \-P " Proxy-Authentication username:password"
 Supply BASIC Authentication credentials to a proxy en-route. The username
 and password are separated by a single ':' and sent on the wire uuencoded.
 The string is sent regardless of whether the proxy needs it; (i.e., has
@@ -161,6 +205,30 @@ of a valid header line, containing a colon-separated field-value pair.
 .BI \-T " content-type"
 Content-type header to use for POST data.
 
+.TP 12
+.BI \-g " gnuplot file"
+Write all measured values out as a 'gnuplot' or TSV (Tab separate values)
+file. This file can easily be imported into packages like Gnuplot, IDL, Mathematica,
+Igor or even Excell. The labels are on the first line of the file. 
+
+.TP 12
+.BI \-q
+When processing more than 150 requsts; 
+.B ab
+outputs a progress count on 
+.B stderr
+every 10% or 100 requests or so. The 
+.B -q
+flag qill suppress these messages.
+
+.TP 12
+.BI \-e " CSV file"
+Write a Comma separated value (CSV) file which contains for each
+percentage (from 1% to 100%) the time (in milli seconds) it took
+to serve that percentage of the requests. This is usually more
+usefull than the 'gnuplot' file; as the results are already
+'binned'.
+
 .TP 12
 .B \-v 
 Set verbosity level - 4 and above prints information on headers, 3 and
@@ -205,4 +273,17 @@ performance rather than the server's.
 
 .SH SEE ALSO
 .BR httpd(8)
+.P
+The HTML output is not as complete as the text output.
+.P
+Up to version 1.3d
+.B ab
+has propably reported values way to low for most measurements;
+as a single timeout (which is usually in the order of seconds)
+will shift several thousands of milli-second responses by a
+considerable factor. This was further componded by a serious
+interger overrun which would for realistic run's (i.e. those
+longer than a few minutes) produce believable but totally 
+bogus results. Thanks to Sander Temme <sander@covalent.net>
+for solving this riddle.
 .