A simple script that interprets the CI data, and allows basic calculations to be performed using command line arguments.

src/timing/ci-parser.pl

@@ -0,0 +1,59 @@
+#! /usr/bin/perl  -w 
+
+use strict;
+
+my $usage = qq(
+Usage: $0 [--force] 'expression to calculate x value' 'expression to calculate y value'
+
+For example:  cat FOO.out | $0 "\\\$arg[0]/\\\$arg[1]" "\\\$time"
+
+will parse lines like this, dividing the first argument to the command
+by the second.
+
+CI mean was: 26.3276666666667   ../linearHashNTAThreaded        1   1000 1
+
+Which would produce this output:
+0.001\t26.3276666666667
+
+);
+
+my $ci_failed = qq(
+The input contains a failed confidence interval.  (--force will allow the script to continue)
+);
+
+my $force;
+
+if($ARGV[0] eq "--force") {
+    $force = shift @ARGV;
+    
+}
+
+my $eval_x = shift @ARGV;
+my $eval_y = shift @ARGV;
+
+if(!defined $eval_x || !defined $eval_y) {
+    die $usage;
+}
+
+my $line;
+
+while($line = <STDIN>) {
+    if ($line =~ /failed/i) {
+	if(!$force) {
+	    die $ci_failed;
+	} else {
+	    warn $ci_failed;
+	    warn "Discarding failed CI data point.\n";
+	}
+    } else {
+	## Remove annotation from line.
+	$line =~ s/^.+\:\s+//;
+	
+	my @tok  = split /\s+/, $line;
+	my $time = shift @tok;
+	my $cmd  = shift @tok;
+	my @arg  = @tok;
+	
+	print ((eval $eval_x) . "\t" . (eval $eval_y) . "\n");
+    }
+}