Bench\Base::report PHP Method

    protected function report()
    {
        // all report data: keyed by row, then by col
        $report = array();
        
        // keep track of the comparison bench average
        $cmp = 9999999999;
        
        // number formatting
        $format = '%8.2f';
        
        // padding for the target name column
        $name_pad = 8;
        
        // each of the targets benched
        foreach ($this->req_sec as $name => $concs) {
            
            // keep a padding for the longest name
            $len = strlen($name);
            if ($len > $name_pad) {
                $name_pad = $len;
            }
            
            // each of the concurrency levels for the target
            foreach ($concs as $conc => $passes) {
                
                // output the bench on its own line
                $report[$name][$conc] = array('rel' => null, 'avg' => null);
                
                // read the pass data
                foreach ($passes as $pass => $req_sec) {
                    $report[$name][$conc][$pass] = sprintf($format, $req_sec);
                }
                
                // figure the average
                $numer = array_sum($report[$name][$conc]);
                $denom = (count($report[$name][$conc]) - 2); // -2 for rel, avg
                $avg =  $numer / $denom;
                $report[$name][$conc]['avg'] = sprintf($format, $avg);
                
                // if this is the comparison target, save the comparison value
                if ($name == $this->compare) {
                    $cmp = $avg;
                }
            }
        }
        
        // always add some extra name padding
        $name_pad += 2;
        
        // header line
        $this->outln();
        $this->out(str_pad('Target', $name_pad));
        $this->out(' |  concurr');
        $this->out(' | relative');
        $this->out(' |  average');
        for($i = 1; $i <= $this->passes; $i++) {
            $this->out(' | ' . str_pad($i, 8, ' ', STR_PAD_LEFT));
        }
        $this->outln();
        
        // separator line
        $this->out(str_pad('', $name_pad, '-'));
        for ($i = 1; $i <= $this->passes + 3; $i++) {
            $this->out(' | --------');
        }
        $this->outln();
        
        // go through each reported target ...
        foreach ($report as $name => $concs) {
            
            // for each concurrency level ...
            foreach ($concs as $conc => $data) {
                
                // compute the relative performance as we go
                if ($this->compare) {
                    $data['rel'] = sprintf("%8.4f", $data['avg'] / $cmp);
                } else {
                    $data['rel'] = '   n/a  ';
                }
                
                // the target name
                $this->out(str_pad($name, $name_pad) . " | ");
                
                // the concurrency level
                $this->out(sprintf("%8d", $conc) . " | ");
                
                // relative, average, and passes
                $this->outln(implode(" | ", $data));
            }
        }
    }