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4ded247675
This test performs a few checks to ensure that "not too much" memory
is used while fileinfo is detecting encodings. It is however platform
specific, and memory usage varies across hosts and as libmagic changes.
Recently a Gentoo user reported a failure in this test at,
https://bugs.gentoo.org/927461
on a big-endian PPC64 machine with output,
---- EXPECTED OUTPUT
131072 => ok
262144 => ok
524288 => ok
1048576 => ok
2097152 => ok
4194304 => ok
8388608 => ok
16777216 => ok
---- ACTUAL OUTPUT
131072 => 10092544
262144 => 10092544
524288 => 12189696
1048576 => 12189696
2097152 => 14352384
4194304 => 18612224
8388608 => 24903680
16777216 => 37486592
---- FAILED
Those numbers are with 8.3.4 and therefore missing commit b7c5813c
which also raises the limits. Checking the "actual" numbers above
against the current values, we see that the limit for 524288 would
need to be bumped to 12189696 to allow this test to pass. Since that
seems reasonable, that's what this commit does.
Closes GH-13795
Closes GH-13940
41 lines
769 B
PHP
41 lines
769 B
PHP
--TEST--
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Bug #78987 High memory usage during encoding detection
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--EXTENSIONS--
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fileinfo
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--INI--
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memory_limit=512M
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--FILE--
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<?php
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$finfo = new finfo(FILEINFO_MIME_TYPE);
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$minSize = 128 * 1024;
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$maxSize = 16 * 1024 * 1024;
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$map = array(
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131072 => 10612736,
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262144 => 10612736,
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524288 => 12189696,
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1048576 => 12709888,
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2097152 => 14811136,
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4194304 => 19009536,
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8388608 => 25300992,
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16777216 => 37883904,
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);
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for($size = $minSize; $size <= $maxSize; $size *= 2) {
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$content = str_repeat('0', $size);
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$finfo->buffer($content);
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$m = memory_get_peak_usage(true);
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printf("%-8d => %s\n", $size, $m <= $map[$size] ? "ok" : "$m");
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}
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?>
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--EXPECT--
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131072 => ok
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262144 => ok
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524288 => ok
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1048576 => ok
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2097152 => ok
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4194304 => ok
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8388608 => ok
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16777216 => ok
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