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Improve shuffling

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This commit is contained in:
Matthew Brown 2019-10-13 20:09:50 -04:00
parent 7e76d3386d
commit e1e2ff3e57
1 changed files with 24 additions and 24 deletions
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48
src/Psalm/Internal/Codebase/Analyzer.php
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@ -361,38 +361,38 @@ class Analyzer
};
if ($pool_size > 1 && count($this->files_to_analyze) > $pool_size) {
$shuffle_count = $pool_size + 1;
$file_paths = \array_values($this->files_to_analyze);
$count = count($file_paths);
$middle = \intdiv($count, $shuffle_count);
$remainder = $count % $shuffle_count;
$new_file_paths = [];
for ($i = 0; $i < $shuffle_count; $i++) {
for ($j = 0; $j < $middle; $j++) {
if ($j * $shuffle_count + $i < $count) {
$new_file_paths[] = $file_paths[$j * $shuffle_count + $i];
}
}
if ($remainder) {
$new_file_paths[] = $file_paths[$middle * $shuffle_count + $remainder - 1];
$remainder--;
}
}
$process_file_paths = [];
$i = 0;
foreach ($this->files_to_analyze as $file_path) {
foreach ($file_paths as $file_path) {
$process_file_paths[$i % $pool_size][] = $file_path;
++$i;
}
foreach ($process_file_paths as $pool_key => $file_paths) {
$count = count($file_paths);
$middle = \intdiv($count, 4);
$remainder = $count % 4;
$new_file_paths = [];
for ($i = 0; $i < 4; $i++) {
for ($j = 0; $j < $middle; $j++) {
if ($j * 4 + $i < $count) {
$new_file_paths[] = $file_paths[$j * 4 + $i];
}
}
if ($remainder) {
$new_file_paths[] = $file_paths[$middle * 4 + $remainder - 1];
$remainder--;
}
}
$process_file_paths[$pool_key] = $new_file_paths;
}
// Run analysis one file at a time, splitting the set of
// files up among a given number of child processes.
$pool = new \Psalm\Internal\Fork\Pool(