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minor #18966 [console] Improve table rendering performance (aik099) 

This PR was submitted for the master branch but it was merged into the 2.7 branch instead (closes #18966).

Discussion
----------

[console] Improve table rendering performance

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #18957
| License       | MIT
| Doc PR        | -

With these improvements on my application, that is rendering table with 128 rows and 5 columns I've cut off total application runtime from **0.39s** to **0.26s**.

Commits
-------

73b812e Make one call to "OutputInterface::write" method per table row
This commit is contained in:
Fabien Potencier 2016-06-06 16:41:31 +02:00
parent 2e938491d6 73b812e3a8
commit 83e24bab6d
1 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/Symfony/Component/Console/Helper/Table.php
View File

@ -257,7 +257,7 @@ class Table
*/
private function renderColumnSeparator()
{
$this->output->write(sprintf($this->style->getBorderFormat(), $this->style->getVerticalBorderChar()));
return sprintf($this->style->getBorderFormat(), $this->style->getVerticalBorderChar());
}
/**
@ -274,12 +274,12 @@ class Table
return;
}
$this->renderColumnSeparator();
$rowContent = $this->renderColumnSeparator();
foreach ($this->getRowColumns($row) as $column) {
$this->renderCell($row, $column, $cellFormat);
$this->renderColumnSeparator();
$rowContent .= $this->renderCell($row, $column, $cellFormat);
$rowContent .= $this->renderColumnSeparator();
}
$this->output->writeln('');
$this->output->writeln($rowContent);
}
/**
@ -306,12 +306,13 @@ class Table
}
if ($cell instanceof TableSeparator) {
$this->output->write(sprintf($this->style->getBorderFormat(), str_repeat($this->style->getHorizontalBorderChar(), $width)));
} else {
$width += Helper::strlen($cell) - Helper::strlenWithoutDecoration($this->output->getFormatter(), $cell);
$content = sprintf($this->style->getCellRowContentFormat(), $cell);
$this->output->write(sprintf($cellFormat, str_pad($content, $width, $this->style->getPaddingChar(), $this->style->getPadType())));
return sprintf($this->style->getBorderFormat(), str_repeat($this->style->getHorizontalBorderChar(), $width));
}
$width += Helper::strlen($cell) - Helper::strlenWithoutDecoration($this->output->getFormatter(), $cell);
$content = sprintf($this->style->getCellRowContentFormat(), $cell);
return sprintf($cellFormat, str_pad($content, $width, $this->style->getPaddingChar(), $this->style->getPadType()));
}
/**