{"id":45578,"date":"2022-12-27T02:14:08","date_gmt":"2022-11-05T06:45:32","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45578-2\/"},"modified":"2024-04-29T07:07:46","modified_gmt":"2024-04-28T23:07:46","slug":"45578-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45578-2\/","title":{"rendered":""},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>Rust\u306eHashMap\u3092Ruby\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u3066\u307f\u305f\u304c\u2026\u2026 \u306e\u7d9a\u304d\u3067\u3059\u3002<\/p>\n<p>\u524d\u56de\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3044\u305f\u3002<\/p>\n<blockquote><p>\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u53d6\u5f97\u3059\u308b\u306e\u306b\u3001Ruby\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u52d5\u7684\u306b\u547c\u3073\u51fa\u3055\u308c\u3001Rust\u306ehash\u95a2\u6570\u3082\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\n\u3055\u3089\u306b Eq\u306e\u6642\u3082Ruby\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u52d5\u7684\u306b\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\nRuby\u304b\u3089\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3059\u308b\u5834\u5408\u306f\u666e\u901a\u306f\u30e1\u30bd\u30c3\u30c9\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u304a\u304f\u306e\u3067\u6b21\u306e\u547c\u3073\u51fa\u3057\u306f\u901f\u304f\u306a\u308b\u304c\u3001C\u3084Rust\u304b\u3089\u547c\u3070\u308c\u308b\u5834\u5408\u306f\u6bce\u56de\u30e1\u30bd\u30c3\u30c9\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u63a2\u3057\u306b\u884c\u304f\u5fc5\u8981\u304c\u3042\u3063\u3066\u3001\u3068\u3066\u3082\u9045\u3044\u3002<\/p><\/blockquote>\n<p>\u4eca\u56de\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u305b\u308b\u3053\u3068\u3067 find, insert, delete \u304c\u901f\u304f\u306a\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u305f\u3002<\/p>\n<h2>\u7d50\u679c<\/h2>\n<p>before:<\/p>\n<pre class=\"post-pre\"><code>$ ruby benchmark.rb --rust --seed 1\r\nHash: Rust\r\nSeed: 1\r\n       user     system      total        real\r\nvalues  1.896433   0.152249   2.048682 (  2.049503)\r\nkeys    1.589012   0.118299   1.707311 (  1.708012)\r\nfind   11.612382   0.002426  11.614808 ( 11.617854)\r\ninsert 15.397090   0.012138  15.409228 ( 15.413532)\r\ndelete  7.581418   0.001750   7.583168 (  7.585473)\r\n<\/code><\/pre>\n<p>after:<\/p>\n<pre class=\"post-pre\"><code>$ ruby benchmark.rb --rust --seed 1\r\nHash: Rust\r\nSeed: 1\r\n       user     system      total        real\r\nvalues  1.924479   0.166750   2.091229 (  2.092445)\r\nkeys    1.514441   0.112787   1.627228 (  1.628187)\r\nfind    8.677083   0.001990   8.679073 (  8.681669)\r\ninsert 12.661791   0.010463  12.672254 ( 12.678383)\r\ndelete  5.908580   0.001670   5.910250 (  5.912530)\r\n<\/code><\/pre>\n<p>insert\u306f\u6a19\u6e96\u306eHash\u30af\u30e9\u30b9\u3088\u308a37%\u3082\u901f\u304f\u306a\u3063\u3066\u3044\u308b\u3002\u3084\u3063\u305f\u306d<\/p>\n<h2>\u3084\u3063\u305f\u3053\u3068<\/h2>\n<p>\u3053\u308c\u307e\u3067\u3001hash\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9f\u88c5\u3057\u3066\u3044\u305f\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"k\">fn<\/span> <span class=\"n\">hash<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">H<\/span><span class=\"p\">:<\/span> <span class=\"n\">Hasher<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">state<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">H<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">val<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">ruby<\/span><span class=\"p\">::<\/span><span class=\"nf\">fun_call<\/span><span class=\"p\">(<\/span><span class=\"k\">self<\/span><span class=\"na\">.0<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"hash\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"p\">[]);<\/span>\r\n        <span class=\"n\">val<\/span><span class=\"nf\">.to_raw<\/span><span class=\"p\">()<\/span><span class=\"nf\">.hash<\/span><span class=\"p\">(<\/span><span class=\"n\">state<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Rust\u304b\u3089\u547c\u3073\u51fa\u3059\u3068\u6bce\u56de\u30c6\u30fc\u30d6\u30eb\u3092\u5f15\u304f\u5fc5\u8981\u304c\u3042\u308b\u304c\u3001Ruby\u304b\u3089\u547c\u3073\u51fa\u305b\u3070\u3044\u3044\u611f\u3058\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u308b\u3002<br \/>\n\u3064\u307e\u308aRuby\u3092\u7d4c\u7531\u3057\u3066\u547c\u3073\u51fa\u305b\u3070\u3088\u3044\u3002\u3068\u3044\u3046\u308f\u3051\u3067<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">pub<\/span> <span class=\"k\">static<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">M_HASH<\/span><span class=\"p\">:<\/span> <span class=\"n\">Value<\/span> <span class=\"o\">=<\/span> <span class=\"n\">NIL<\/span><span class=\"p\">;<\/span>\r\n<span class=\"c\">\/\/ ...<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">sym_hash<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">module_eval<\/span><span class=\"p\">(<\/span><span class=\"n\">klass<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"def self.value_hash(val); val.hash; end\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"n\">M_HASH<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">obj_method_by_symbol<\/span><span class=\"p\">(<\/span><span class=\"n\">klass<\/span><span class=\"p\">,<\/span> <span class=\"n\">sym_hash<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>eval \u3092\u4f5c\u3063\u3066Ruby\u306e\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"k\">fn<\/span> <span class=\"n\">hash<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">H<\/span><span class=\"p\">:<\/span> <span class=\"n\">Hasher<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">state<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">H<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">method<\/span> <span class=\"o\">=<\/span> <span class=\"k\">unsafe<\/span> <span class=\"p\">{<\/span> <span class=\"nn\">crate<\/span><span class=\"p\">::<\/span><span class=\"nn\">hashmap<\/span><span class=\"p\">::<\/span><span class=\"n\">M_HASH<\/span> <span class=\"p\">};<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">val<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">ruby<\/span><span class=\"p\">::<\/span><span class=\"nf\">method_call<\/span><span class=\"p\">(<\/span><span class=\"n\">method<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"p\">[<\/span><span class=\"k\">self<\/span><span class=\"na\">.0<\/span><span class=\"p\">]);<\/span>\r\n        <span class=\"n\">val<\/span><span class=\"nf\">.to_raw<\/span><span class=\"p\">()<\/span><span class=\"nf\">.hash<\/span><span class=\"p\">(<\/span><span class=\"n\">state<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>hash\u95a2\u6570\u3067\u306f\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u4ee3\u308f\u308a\u306b\u3053\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f Method \u547c\u3073\u51fa\u3057\u3092\u884c\u3046\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">extern<\/span> <span class=\"s\">\"C\"<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">mark<\/span><span class=\"p\">(<\/span><span class=\"n\">ptr<\/span><span class=\"p\">:<\/span> <span class=\"o\">*<\/span><span class=\"k\">const<\/span> <span class=\"nn\">ffi<\/span><span class=\"p\">::<\/span><span class=\"nb\">c_void<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n   <span class=\"nf\">gc_mark<\/span><span class=\"p\">(<\/span><span class=\"k\">unsafe<\/span> <span class=\"p\">{<\/span> <span class=\"n\">M_HASH<\/span> <span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e Method \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304cGC\u3067\u56de\u53ce\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\uff08\u3053\u308c\u304c\u539f\u56e0\u3067\u6642\u3005SEGV\u304c\u51fa\u3066\u30c7\u30d0\u30c3\u30b0\u304c\u8f9b\u304b\u3063\u305f\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 Rust\u306eHashMap\u3092Ruby\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u3066\u307f\u305f\u304c\u2026\u2026 \u306e\u7d9a\u304d\u3067\u3059\u3002 \u524d\u56de\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3044\u305f [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45578","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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