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visualfail: speedup by using the ".=" operator

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Using "$x .= $y" instead of "$x = $x . $y" is actually an extreme
speedup for long $x.  I had no idea PHP's "compiler" was that bad and
doesn't optimize this.

Change-Id: I39aec5f14f45b75a2467d8074b5ea2ffe5d4b856
This commit is contained in:
Horst Schirmeier
2015-01-06 15:09:36 +01:00
parent fc8ad04db2
commit 42773e2be5
1 changed files with 24 additions and 28 deletions
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52
tools/analysis/VisualFAIL/core.php
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@ -170,7 +170,7 @@ function asmCode()
$content = $content;
while($row = mysql_fetch_object($ergebnis))
{
$content = $content . '<span id="' . dechex($row->instr_address) . '">' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
$content .= '<span id="' . dechex($row->instr_address) . '">' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
}
echo json_encode($content);
}
@ -193,26 +193,25 @@ function getAsmCode()
$content = '<div id="maxFehler" ';
foreach ($resulttypes as $value) {
$temp = $value . '="' . $fehlerdaten['max'][$value] . '" ';
$content = $content . $temp;
$content .= $temp;
}
$content = $content .' >';
$content .= ' >';
while($row = mysql_fetch_object($asmcode))
{
if (array_key_exists($row->instr_address,$fehlerdaten['Daten'])) {
$content = $content . '<span id="' . dechex($row->instr_address) . '" class="hasFehler" ';
$content .= '<span id="' . dechex($row->instr_address) . '" class="hasFehler" ';
foreach ($resulttypes as $value) {
$temp = $value . '="' . $fehlerdaten['Daten'][$row->instr_address][$value] . '" ';
$content = $content . $temp;
$content .= $value . '="' . $fehlerdaten['Daten'][$row->instr_address][$value] . '" ';
}
$content = $content . ' cursor: pointer;>' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
$content .= ' cursor: pointer;>' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
} else {
$content = $content . '<span id="' . dechex($row->instr_address) . '">' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
$content .= '<span id="' . dechex($row->instr_address) . '">' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
}
}
$content = $content . ' </div>';
$content .= ' </div>';
echo json_encode($content);
}
@ -268,15 +267,14 @@ function getHighlevelCode()
while($row = mysql_fetch_object($mappingErgebnis)) {
if (array_key_exists($row->instr_address,$fehlerdaten['Daten'])) {
$newline = $newline . '<span id="' . dechex($row->instr_address) . '" class="hasFehler" ';
$newline .= '<span id="' . dechex($row->instr_address) . '" class="hasFehler" ';
foreach ($resulttypes as $value) {
$temp = $value . '="' . $fehlerdaten['Daten'][$row->instr_address][$value] . '" ';
$newline = $newline . $temp;
$newline .= $value . '="' . $fehlerdaten['Daten'][$row->instr_address][$value] . '" ';
$maxFehler[$value] = $maxFehler[$value] + $fehlerdaten['Daten'][$row->instr_address][$value];
}
$newline = $newline . ' cursor: pointer;>' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
$newline .= ' cursor: pointer;>' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
} else {
$newline = '<span id="' . dechex($row->instr_address) . '">' . dechex($row->instr_address) . ' ' . htmlspecialchars($row->disassemble) . '</span><br>';
}
@ -293,18 +291,18 @@ function getHighlevelCode()
while($row = mysql_fetch_object($highlevelCode))
{
$content = $content . '<span id="' . $row->linenumber . '">' . $row->linenumber . ' : ' . $row->line . '</span><br>';
$content .= '<span id="' . $row->linenumber . '">' . $row->linenumber . ' : ' . $row->line . '</span><br>';
if(array_key_exists($row->linenumber, $mapping)) {
$content = $content . '<div id="mapping">';
$content .= '<div id="mapping">';
foreach ($mapping[$row->linenumber] as $index => $span) {
$content = $content . $span;
$content .= $span;
}
$content = $content . '</div>';
$content = $content .'<div class="maxFehlerMapping"';
$content .= '</div>';
$content .= '<div class="maxFehlerMapping"';
foreach ($resulttypes as $value) {
$content = $content . $value . '="' . $maxFehlerMapping[$row->linenumber][$value] . '" ';
$content .= $value . '="' . $maxFehlerMapping[$row->linenumber][$value] . '" ';
}
$content = $content .'> </div>';
$content .= '> </div>';
}
}
@ -363,11 +361,10 @@ function askDBFehler($variant_id, $resulttypes, $version)
GROUP BY ft.instr_absolute;";
} else if ($version == 'latestip') {
$abfrage = "SELECT r.latest_ip ";
foreach ( $resulttypes as $value) {
$temp = ", SUM(IF(r.resulttype = '" . $value . "', 1, 0)*(t.time2-t.time1+1)) AS " . $value;
$abfrage = $abfrage . $temp;
}
$abfrage = $abfrage . " FROM trace t
foreach ( $resulttypes as $value) {
$abfrage .= ", SUM(IF(r.resulttype = '" . $value . "', 1, 0)*(t.time2-t.time1+1)) AS " . $value;
}
$abfrage .= " FROM trace t
JOIN fsppilot p
ON t.variant_id = p.variant_id
AND t.data_address = p.data_address
@ -379,10 +376,9 @@ function askDBFehler($variant_id, $resulttypes, $version)
} else {
$abfrage = "SELECT ft.instr, ft.instr_absolute ";
foreach ( $resulttypes as $value) {
$temp = ", SUM(IF(r.resulttype = '" . $value . "', 1, 0)*(t.time2-t.time1+1)) AS " . $value;
$abfrage = $abfrage . $temp;
$abfrage .= ", SUM(IF(r.resulttype = '" . $value . "', 1, 0)*(t.time2-t.time1+1)) AS " . $value;
}
$abfrage = $abfrage . " FROM fulltrace ft
$abfrage .= " FROM fulltrace ft
LEFT JOIN trace t
ON ft.variant_id = '" . $variant_id . "'
AND t.variant_id = '" . $variant_id . "'