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<?php // 标准array $array = array(1024 * 1024); // array(); for ($i = 0; $i < 1024 * 1024; ++$i) $array[$i] = 0; print_r('Standard array: '.memory_get_peak_usage()); // spl $array = new SplFixedArray(1024 * 1024); // array(); for ($i = 0; $i < 1024 * 1024; ++$i) $array[$i] = 0; print_r('SplFixedArray: '.memory_get_peak_usage());
Output for git.master
Standard array: 17169848SplFixedArray: 33947200
Output for git.master_jit
Fatal error: Out of memory (allocated 10489856 bytes) (tried to allocate 16777224 bytes) in /in/A3c9u 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: 17169816SplFixedArray: 33947152

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