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<?php // 标准array $array = array(1024 * 1024); // array(); for ($i = 0; $i < 1024 * 1024; ++$i) $array[$i] = 0; echo 'Standard array: '.memory_get_peak_usage(); // spl $array = new SplFixedArray(1024 * 1024); // array(); for ($i = 0; $i < 1024 * 1024; ++$i) $array[$i] = 0; echo 'SplFixedArray: '.memory_get_peak_usage();
Output for git.master
Standard array: 17169576SplFixedArray: 33946928
Output for git.master_jit
Fatal error: Out of memory (allocated 10489856 bytes) (tried to allocate 16777224 bytes) in /in/pFSql on line 5 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for rfc.property-hooks
Standard array: 17169544SplFixedArray: 33946880

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