R6.6 is the Xorg base-lineXORG-MAIN

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diff --git a/x11pcomp.cpp b/x11pcomp.cpp
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+XCOMM! /bin/sh
+XCOMM Collects multiple outputs of x11perf.  Just feed it a list of files, each
+XCOMM containing the output from an x11perf run, and this shell will extract the
+XCOMM object/second information and show it in tabular form.  An 80-column line
+XCOMM is big enough to compare 4 different servers.
+XCOMM
+XCOMM This script normally uses the results from $1 to extract the test label
+XCOMM descriptions, so you can run x11perf on a subset of the test and then
+XCOMM compare the results.  But note that x11perffill requires the labels file
+XCOMM to be a superset of the x11perf results file.  If you run into an ugly
+XCOMM situation in which none of the servers completes the desired tests 
+XCOMM (quite possible on non-DEC servers :), you can use -l <filename> as $1 and
+XCOMM $2 to force x11perfcomp to use the labels stored in file $2.  (You can run
+XCOMM x11perf with the -labels option to generate such a file.)
+XCOMM
+XCOMM Mark Moraes, University of Toronto <moraes@csri.toronto.edu>
+XCOMM Joel McCormack, DEC Western Research Lab <joel@decwrl.dec.com>
+XCOMM
+XCOMM $Xorg: x11pcomp.cpp,v 1.3 2000/08/17 19:54:10 cpqbld Exp $
+
+PATH=LIBPATH:.:$PATH
+export PATH
+
+set -e
+tmp=/tmp/rates.$$
+trap "rm -rf $tmp" 0 1 2 15
+mkdir $tmp $tmp/rates
+ratio=
+allfiles=
+XCOMM Include relative rates in output?  Report only relative rates?
+case $1 in
+-r|-a)
+	ratio=1
+	shift;
+	;;
+-ro)
+	ratio=2
+	shift;
+	;;
+esac
+XCOMM Get either the provided label file, or construct one from all the
+XCOMM files given.
+case $1 in
+-l)	cp $2 $tmp/labels
+	shift; shift
+	;;
+*)	for file in "$@"; do
+		awk '$2 == "reps" || $2 == "trep" { print $0; next; }' $file |
+ 		sed 's/^.*: //' |
+ 		sed 's/ /_/g' |
+ 		awk 'NR > 1 	{ printf ("%s %s\n", prev, $0); } \
+				{ prev = $0; }'
+	done | tsort 2>/dev/null | sed 's/_/ /g' > $tmp/labels
+	;;
+esac
+XCOMM Go through all files, and create a corresponding rate file for each
+n=1
+for i
+do
+XCOMM Get lines with average numbers, fill in any tests that may be missing
+XCOMM then extract the rate field
+	base=`basename $i`
+	(echo "     $n  "
+	 echo '--------'
+	 awk '$2 == "reps" || $2 == "trep" { \
+		line = $0; \
+		next; \
+	    } \
+	    NF == 0 && line != "" { \
+		print line; \
+		line=""; \
+		next; \
+	    } \
+	 ' $i > $tmp/$n.avg
+	 fillblnk $tmp/$n.avg $tmp/labels |
+	 sed 's/( *\([0-9]*\)/(\1/'   |
+	 awk '$2 == "reps" || $2 == "trep" { \
+	 					n = substr($6,2,length($6)-7); \
+						printf "%8s\n", n; \
+    	 				   }'
+	) > $tmp/rates/$n
+	echo "$n: $i"
+	allfiles="$allfiles$tmp/rates/$n "
+	n=`expr $n + 1`
+done
+case x$ratio in
+x)
+	ratio=/bin/cat
+	;;
+x1)
+	ratio="perfboth $n"
+	;;
+*)
+	ratio="perfratio $n"
+	;;
+esac
+echo ''
+(echo Operation; echo '---------'; cat $tmp/labels) |
+paste $allfiles - | sed 's/	/  /g' | $ratio
+rm -rf $tmp