{"id":1119,"date":"2026-10-23T03:00:00","date_gmt":"2026-10-22T18:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1119"},"modified":"2026-10-22T14:40:31","modified_gmt":"2026-10-22T05:40:31","slug":"qs-linux-monotonic-clock-deadline-20261022","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1119","title":{"rendered":"Linux\u306e\u5358\u8abf\u6642\u8a08\u3001\u65e5\u6642\u306e\u5909\u66f4\u3068\u5f85\u3061\u6642\u9593\u3092\u5206\u3051\u3066\u8003\u3048\u308b"},"content":{"rendered":"<p>\u51e6\u7406\u306b\u4f55\u79d2\u304b\u304b\u3063\u305f\u304b\u3092\u8abf\u3079\u308b\u305f\u3081\u3001\u958b\u59cb\u3068\u7d42\u4e86\u306e\u6642\u523b\u3092\u5f15\u304d\u7b97\u3057\u305f\u3089\u3001\u8ca0\u306e\u5024\u306b\u306a\u3063\u305f\u3002\u3053\u308c\u306f\u8a08\u7b97\u306e\u8aa4\u308a\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u73fe\u5728\u306e\u65e5\u6642\u3092\u8868\u3059\u6642\u8a08\u306f\u3001\u9014\u4e2d\u3067\u5408\u308f\u305b\u76f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002Linux\u3067\u306f\u3001\u65e5\u6642\u3001\u7d4c\u904e\u6642\u9593\u3001\u30b5\u30b9\u30da\u30f3\u30c9\u3092\u542b\u3080\u6642\u9593\u3092\u7528\u9014\u306b\u5fdc\u3058\u3066\u5206\u3051\u3089\u308c\u307e\u3059\u3002\u672c\u7a3f\u3067\u306fLinux man-pages 6.19\u3092\u53c2\u7167\u3057\u3001CLOCK_REALTIME\u3001CLOCK_MONOTONIC\u3001CLOCK_BOOTTIME\u306e\u9055\u3044\u3068\u3001\u671f\u9650\u3092\u6c7a\u3081\u308b\u969b\u306e\u8aad\u307f\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002[1][2]<\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u73fe\u5728\u306e\u65e5\u6642\u3092\u8868\u3059CLOCK_REALTIME\u306f\u3001\u6642\u523b\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u524d\u5f8c\u3078\u98db\u3076\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4e8c\u3064\u306e\u5024\u306e\u5dee\u304c\u3001\u305d\u306e\u307e\u307e\u51e6\u7406\u306e\u7d4c\u904e\u6642\u9593\u306b\u306a\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>CLOCK_MONOTONIC\u306f\u4e0d\u9023\u7d9a\u306a\u6642\u523b\u5909\u66f4\u3067\u5f8c\u623b\u308a\u3057\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001Linux\u3067\u306f\u30b5\u30b9\u30da\u30f3\u30c9\u4e2d\u306e\u6642\u9593\u3092\u6570\u3048\u305a\u3001\u5468\u6ce2\u6570\u306e\u88dc\u6b63\u306f\u53d7\u3051\u307e\u3059\u3002<\/li>\n<li>\u30b5\u30b9\u30da\u30f3\u30c9\u4e2d\u3082\u671f\u9650\u307e\u3067\u306e\u6642\u9593\u3078\u542b\u3081\u308b\u306a\u3089\u3001CLOCK_BOOTTIME\u3068\u306e\u9055\u3044\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6642\u9593\u3092\u6570\u3048\u308b\u3053\u3068\u3068\u3001\u7720\u3063\u305f\u6a5f\u5668\u3092\u8d77\u3053\u3059\u3053\u3068\u306f\u5225\u3067\u3059\u3002<\/li>\n<li>\u6642\u8a08\u306e\u7a2e\u985e\u3068\u3001\u76f8\u5bfe\u5f85\u6a5f\u30fb\u7d76\u5bfe\u671f\u9650\u306e\u6307\u5b9a\u306f\u5225\u306e\u9078\u629e\u3067\u3059\u3002\u4f7f\u3046API\u306e\u4ed5\u69d8\u307e\u3067\u63c3\u3048\u3066\u3001\u65e5\u6642\u3068\u7d4c\u904e\u6642\u9593\u3092\u6271\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u65e5\u6642\u3092\u6b8b\u3059\u6642\u8a08\u3068\u3001\u7d4c\u904e\u3092\u6e2c\u308b\u6642\u8a08<\/h2>\n<p><code>CLOCK_REALTIME<\/code>\u306f\u3001\u5229\u7528\u8005\u304c\u898b\u308b\u65e5\u6642\u306b\u5bfe\u5fdc\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u6642\u8a08\u3067\u3059\u3002\u30ed\u30b0\u306b\u300c\u3044\u3064\u8d77\u304d\u305f\u304b\u300d\u3092\u6b8b\u3057\u305f\u308a\u3001\u5916\u90e8\u304b\u3089\u4e0e\u3048\u3089\u308c\u305f\u65e5\u6642\u3068\u7167\u5408\u3057\u305f\u308a\u3059\u308b\u7528\u9014\u306b\u95a2\u4fc2\u3057\u307e\u3059\u3002\u3053\u306e\u6642\u8a08\u306f\u8a2d\u5b9a\u53ef\u80fd\u3067\u3001\u7ba1\u7406\u8005\u306b\u3088\u308b\u5909\u66f4\u306a\u3069\u3067\u5024\u304c\u4e0d\u9023\u7d9a\u306b\u5909\u308f\u308b\u307b\u304b\u3001\u6642\u523b\u540c\u671f\u306b\u4f34\u3046\u5468\u6ce2\u6570\u88dc\u6b63\u306e\u5f71\u97ff\u3082\u53d7\u3051\u307e\u3059\u3002[1\u3001DESCRIPTION]<\/p>\n<p>\u4e00\u65b9\u3001<code>CLOCK_MONOTONIC<\/code>\u306f\u3001\u3042\u308b\u8d77\u70b9\u304b\u3089\u306e\u5358\u8abf\u306a\u6642\u9593\u3092\u8868\u3057\u307e\u3059\u3002\u540c\u3058\u6642\u8a08\u3092\u7d9a\u3051\u3066\u8aad\u3093\u3060\u5024\u304c\u5f8c\u623b\u308a\u3057\u306a\u3044\u305f\u3081\u3001\u65e5\u6642\u306e\u5909\u66f4\u3068\u5207\u308a\u96e2\u3057\u3066\u7d4c\u904e\u3092\u6e2c\u308b\u969b\u306b\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u7d9a\u3051\u3066\u8aad\u3080\u3068\u5fc5\u305a\u7570\u306a\u308b\u5024\u304c\u5f97\u3089\u308c\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5206\u89e3\u80fd\u306a\u3069\u306b\u3088\u3063\u3066\u3001\u4e8c\u56de\u306e\u8aad\u53d6\u308a\u304c\u540c\u3058\u5024\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002[1]<\/p>\n<p>\u91cd\u8981\u306a\u306e\u306f\u3001\u958b\u59cb\u3068\u7d42\u4e86\u3067\u540c\u3058\u7a2e\u985e\u306e\u6642\u8a08\u3092\u4f7f\u3046\u3053\u3068\u3067\u3059\u3002\u65e5\u6642\u3092\u8a18\u9332\u3059\u308b\u5024\u3068\u3001\u7d4c\u904e\u6642\u9593\u3092\u8a08\u7b97\u3059\u308b\u5024\u3092\u5225\u3005\u306b\u4fdd\u5b58\u3057\u3066\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\u9055\u3046\u8d77\u70b9\u3092\u6301\u3064\u5024\u3092\u3001\u5358\u4f4d\u304c\u3069\u3061\u3089\u3082\u79d2\u3060\u304b\u3089\u3068\u3044\u3046\u7406\u7531\u3067\u5f15\u304d\u7b97\u3057\u305f\u308a\u3001\u5225\u30de\u30b7\u30f3\u3084\u5225\u306e\u8d77\u52d5\u3067\u8aad\u3093\u3060\u5358\u8abf\u6642\u8a08\u306e\u5024\u3092\u305d\u306e\u307e\u307e\u5171\u901a\u306e\u65e5\u6642\u3068\u3057\u3066\u6bd4\u8f03\u3057\u305f\u308a\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2>\u6642\u8a08\u304c20\u79d2\u623b\u308b\u3068\u30015\u79d2\u306e\u51e6\u7406\u306f\u3069\u3046\u898b\u3048\u308b\u304b<\/h2>\n<p>\u72ec\u81ea\u306e\u5408\u6210\u30e2\u30c7\u30eb\u3067\u3001\u5b9f\u969b\u306b\u306f5\u79d2\u9032\u3080\u51e6\u7406\u3092\u8003\u3048\u307e\u3059\u3002\u958b\u59cb\u6642\u306e\u65e5\u6642\u6642\u8a08\u3092\u8aac\u660e\u7528\u306b100\u79d2\u3068\u3057\u30012\u79d2\u7d4c\u904e\u3057\u305f\u77ac\u9593\u306b20\u79d2\u3060\u3051\u5f8c\u308d\u3078\u8a2d\u5b9a\u3057\u76f4\u3057\u305f\u3068\u3057\u307e\u3059\u3002\u7d42\u4e86\u6642\u306e\u5024\u306f100\uff0b5\u221220\u306785\u79d2\u3067\u3059\u3002\u7d42\u4e86\u5024\u304b\u3089\u958b\u59cb\u5024\u3092\u5f15\u304f\u3068\u221215\u79d2\u306b\u306a\u308a\u307e\u3059\u3002\u540c\u3058\u30e2\u30c7\u30eb\u306e\u5358\u8abf\u6642\u8a08\u3067\u306f\u3001\u958b\u59cb\u304b\u3089\u306e\u5dee\u306f5\u79d2\u3067\u3059\u3002<\/p>\n<p>\u671f\u9650\u5224\u5b9a\u306b\u3082\u9055\u3044\u304c\u73fe\u308c\u307e\u3059\u3002\u300c\u958b\u59cb\u6642\u306e\u65e5\u6642\u6642\u8a08\uff0b5\u79d2\u300d\u3001\u3064\u307e\u308a105\u79d2\u3078\u9054\u3057\u305f\u3089\u7d42\u4e86\u3059\u308b\u3068\u3044\u3046\u6bd4\u8f03\u3092\u7e70\u308a\u8fd4\u3059\u5834\u5408\u300120\u79d2\u306e\u5f8c\u623b\u308a\u5f8c\u306f\u3001\u958b\u59cb\u304b\u308925\u79d2\u9032\u3080\u307e\u3067105\u3078\u5230\u9054\u3057\u307e\u305b\u3093\u3002\u53cd\u5bfe\u306b\u30012\u79d2\u7d4c\u904e\u3057\u305f\u6642\u70b9\u306720\u79d2\u524d\u3078\u98db\u3070\u305b\u3070\u3001\u65e5\u6642\u6642\u8a08\u306f122\u3068\u306a\u308a\u3001\u305d\u306e\u6642\u70b9\u3067105\u3068\u3044\u3046\u671f\u9650\u3092\u904e\u304e\u307e\u3059\u3002<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-linux-monotonic-clock-deadline-20261022-figure-863f4c2fab96.png\" alt=\"\u5408\u6210\u30e2\u30c7\u30eb\u3002\u6642\u8a08\u5909\u66f4\u306a\u3057\u3067\u306f\u3001\u65e5\u6642\u6642\u8a08\u306e\u671f\u9650\u3082\u5358\u8abf\u6642\u8a08\u306e\u671f\u9650\u3082\u958b\u59cb5\u79d2\u5f8c\u30022\u79d2\u6642\u70b9\u3067\u65e5\u6642\u309220\u79d2\u623b\u3059\u3068\u65e5\u6642\u671f\u9650\u306f25\u79d2\u5f8c\u300120\u79d2\u9032\u3081\u308b\u30682\u79d2\u5f8c\u306b\u306a\u308b\u3002\u5358\u8abf\u6642\u8a08\u306e\u671f\u9650\u306f\u5404\u4f8b\u30675\u79d2\u5f8c\u3002OS\u306e\u5b9f\u6e2c\u3067\u306f\u306a\u3044\u3002\" style=\"width:100%;height:auto\"\/><figcaption>\u958b\u59cb\u5024100\u306b5\u3092\u8db3\u3057\u305f\u671f\u9650\u3068\u3001\u5358\u8abf\u6642\u8a08\u306e\u958b\u59cb\u5024\u306b5\u3092\u8db3\u3057\u305f\u671f\u9650\u3092\u6bd4\u8f03\u3002\u6642\u523b\u3092\u5b9f\u969b\u306b\u5909\u66f4\u3057\u305f\u5b9f\u9a13\u3067\u306f\u306a\u304f\u3001\u6642\u8a08\u3068\u5224\u5b9a\u898f\u5247\u306e\u95a2\u4fc2\u3092\u793a\u3059\u5408\u6210\u30e2\u30c7\u30eb\u3002<\/figcaption><\/figure>\n<p>\u3053\u306e\u4f8b\u306f\u3001\u81ea\u5206\u3067\u65e5\u6642\u6642\u8a08\u3092\u8aad\u307f\u306a\u304c\u3089\u7d76\u5bfe\u671f\u9650\u3068\u6bd4\u8f03\u3059\u308b\u5834\u5408\u306e\u8aac\u660e\u3067\u3059\u3002\u300cREALTIME\u3092\u4f7f\u3046\u5f85\u6a5f\u306f\u3059\u3079\u3066\u6642\u523b\u5909\u66f4\u3067\u5ef6\u3073\u7e2e\u307f\u3059\u308b\u300d\u3068\u4e00\u822c\u5316\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002Linux\u306e<code>clock_nanosleep<\/code>\u3067\u306f\u3001REALTIME\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u3001\u76f8\u5bfe\u6642\u9593\u3067\u5f85\u6a5f\u3057\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u306f\u3001\u305d\u306e\u6642\u8a08\u306e\u8a2d\u5b9a\u5909\u66f4\u3067\u306f\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u3068\u4ed5\u69d8\u306b\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5f71\u97ff\u3059\u308b\u306e\u306f\u3001\u3069\u306e\u6642\u8a08\u304b\u3060\u3051\u3067\u306a\u304f\u3001\u4f55\u3092\u671f\u9650\u3068\u3057\u3066\u6e21\u3057\u305f\u304b\u3067\u3059\u3002[2\u3001NOTES]<\/p>\n<h2>\u30b5\u30b9\u30da\u30f3\u30c9\u306e10\u79d2\u3092\u6570\u3048\u308b\u304b\u3069\u3046\u304b<\/h2>\n<p>Linux\u306eCLOCK_MONOTONIC\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u30b5\u30b9\u30da\u30f3\u30c9\u3057\u3066\u3044\u305f\u6642\u9593\u3092\u542b\u307f\u307e\u305b\u3093\u30022\u79d2\u52d5\u3044\u305f\u5f8c\u300110\u79d2\u30b5\u30b9\u30da\u30f3\u30c9\u3057\u3001\u305d\u306e\u5f8c3\u79d2\u52d5\u3044\u305f\u5358\u7d14\u306a\u30e2\u30c7\u30eb\u306a\u3089\u3001\u3053\u306e\u6642\u8a08\u306e\u5897\u52a0\u306f5\u79d2\u3067\u3059\u3002<code>CLOCK_BOOTTIME<\/code>\u306f\u540c\u3058\u72b6\u6cc1\u3067\u30b5\u30b9\u30da\u30f3\u30c9\u6642\u9593\u3082\u542b\u3080\u305f\u3081\u3001\u5897\u52a0\u306f15\u79d2\u306b\u306a\u308a\u307e\u3059\u3002[1]<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u518d\u958b\u5f8c\u3082\u300c\u6a5f\u5668\u304c\u52d5\u3044\u3066\u3044\u305f\u6642\u9593\u3068\u3057\u3066\u3001\u3042\u3068\u4f55\u79d2\u5f85\u3064\u304b\u300d\u3092\u6271\u3046\u306e\u304b\u3001\u300c\u7720\u3063\u3066\u3044\u308b\u9593\u3082\u671f\u9650\u306e\u6642\u9593\u306f\u9032\u3093\u3060\u3068\u307f\u306a\u3059\u304b\u300d\u3092\u6271\u3046\u306e\u304b\u3067\u3001\u9069\u5207\u306a\u6761\u4ef6\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001BOOTTIME\u306e\u5024\u304c\u30b5\u30b9\u30da\u30f3\u30c9\u4e2d\u3082\u9032\u3080\u3053\u3068\u306f\u3001\u305d\u308c\u3060\u3051\u3067\u6a5f\u5668\u3092\u8d77\u3053\u305b\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306fALARM\u3092\u4f34\u3046\u5225\u306e\u6642\u8a08\u3082\u533a\u5225\u3055\u308c\u3066\u304a\u308a\u3001\u8d77\u5e8a\u306e\u4ed5\u7d44\u307f\u306f\u30bf\u30a4\u30de\u30fcAPI\u3084\u6a29\u9650\u3082\u542b\u3081\u305f\u5225\u306e\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002\u672c\u7a3f\u306f\u8d77\u5e8a\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u624b\u9806\u3092\u6271\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>\u307e\u305f\u3001CLOCK_MONOTONIC\u306f\u4e0d\u9023\u7d9a\u306a\u65e5\u6642\u5909\u66f4\u3092\u907f\u3051\u307e\u3059\u304c\u3001\u5468\u6ce2\u6570\u88dc\u6b63\u306e\u5f71\u97ff\u307e\u3067\u53d7\u3051\u306a\u3044\u6642\u8a08\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Linux\u56fa\u6709\u306e<code>CLOCK_MONOTONIC_RAW<\/code>\u306f\u3001\u3053\u306e\u88dc\u6b63\u3092\u53d7\u3051\u306a\u3044\u751f\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u57fa\u3065\u304f\u6642\u9593\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002[1] RAW\u3068\u3044\u3046\u540d\u524d\u3060\u3051\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u671f\u9650\u7ba1\u7406\u306b\u5e38\u306b\u6700\u9069\u3060\u3068\u306f\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u3069\u306e\u88dc\u6b63\u3068\u7d4c\u904e\u3092\u5fc5\u8981\u3068\u3059\u308b\u304b\u3092\u5148\u306b\u6c7a\u3081\u307e\u3059\u3002<\/p>\n<h2>\u7d76\u5bfe\u671f\u9650\u306f\u3001\u30ab\u30ec\u30f3\u30c0\u30fc\u4e0a\u306e\u65e5\u6642\u3068\u306f\u9650\u3089\u306a\u3044<\/h2>\n<p><code>clock_nanosleep<\/code>\u306b\u306f\u3001\u73fe\u5728\u304b\u3089\u4f55\u79d2\u3068\u3044\u3046\u76f8\u5bfe\u6307\u5b9a\u3068\u3001\u9078\u3093\u3060\u6642\u8a08\u306e\u5024\u304c\u3069\u3053\u3078\u9054\u3059\u308b\u307e\u3067\u3068\u3044\u3046\u7d76\u5bfe\u6307\u5b9a\u304c\u3042\u308a\u307e\u3059\u3002\u5f8c\u8005\u306f<code>TIMER_ABSTIME<\/code>\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u300c\u7d76\u5bfe\u300d\u3068\u3044\u3046\u8a9e\u304c\u4ed8\u3044\u3066\u3044\u3066\u3082\u3001CLOCK_MONOTONIC\u3092\u9078\u3079\u3070\u3001\u305d\u306e\u6642\u8a08\u306e\u8d77\u70b9\u306b\u57fa\u3065\u304f\u671f\u9650\u3067\u3059\u3002\u30ab\u30ec\u30f3\u30c0\u30fc\u4e0a\u306e\u65e5\u6642\u3092\u6307\u5b9a\u3057\u305f\u3053\u3068\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002[2\u3001DESCRIPTION]<\/p>\n<p>\u5468\u671f\u51e6\u7406\u3067\u3082\u3001\u3053\u306e\u9055\u3044\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002\u51e6\u7406\u81ea\u4f53\u304c\u6bce\u56de0.2\u79d2\u304b\u304b\u308a\u3001\u305d\u306e\u7d42\u4e86\u5f8c\u306b\u76f8\u5bfe\u7684\u306b1\u79d2\u7720\u308b\u30e2\u30c7\u30eb\u3067\u306f\u3001\u958b\u59cb\u6642\u523b\u306f0\u30011.2\u30012.4\u30013.6\u79d2\u3068\u305a\u308c\u3066\u3044\u304d\u307e\u3059\u3002\u4e00\u65b9\u3001\u57fa\u6e96\u6642\u523b\u304b\u30891\u30012\u30013\u79d2\u3068\u3044\u3046\u671f\u9650\u3092\u5148\u306b\u5b9a\u3081\u3001\u5404\u56de\u306e\u51e6\u7406\u304c\u6b21\u306e\u671f\u9650\u306b\u9593\u306b\u5408\u3046\u306a\u3089\u3001\u3053\u306e\u51e6\u7406\u6642\u9593\u3092\u6bce\u56de\u5468\u671f\u3078\u8db3\u3055\u305a\u306b\u6e08\u307f\u307e\u3059\u3002\u3053\u308c\u306f\u72ec\u81ea\u306e\u6642\u9593\u8db3\u3057\u7b97\u306e\u4f8b\u3067\u3001\u5b9f\u6a5f\u3067\u305d\u306e\u6642\u523b\u306b\u5fc5\u305a\u5b9f\u884c\u3067\u304d\u308b\u3068\u3044\u3046\u4fdd\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30de\u30cb\u30e5\u30a2\u30eb\u306f\u3001\u7d76\u5bfe\u671f\u9650\u304c\u76f8\u5bfe\u5f85\u6a5f\u306e\u7e70\u8fd4\u3057\u306b\u3088\u308b\u305a\u308c\u3092\u907f\u3051\u308b\u306e\u306b\u5f79\u7acb\u3064\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30b7\u30b0\u30ca\u30eb\u3067\u4e2d\u65ad\u3055\u308c\u305f\u7d76\u5bfe\u5f85\u6a5f\u306f\u3001\u540c\u3058\u671f\u9650\u3092\u4f7f\u3063\u3066\u518d\u5ea6\u547c\u3073\u51fa\u305b\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u623b\u308a\u5024\u3092\u78ba\u8a8d\u3057\u3001\u4e2d\u65ad\u3068\u6b63\u5e38\u7d42\u4e86\u3092\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5f85\u6a5f\u6642\u9593\u306e\u4e38\u3081\u3084\u3001\u5f85\u6a5f\u304c\u7d42\u308f\u3063\u3066\u3082CPU\u3067\u518d\u5b9f\u884c\u3055\u308c\u308b\u307e\u3067\u306e\u9045\u308c\u3082\u3042\u308b\u305f\u3081\u3001\u30ca\u30ce\u79d2\u5358\u4f4d\u3067\u6307\u5b9a\u3067\u304d\u308b\u3053\u3068\u3068\u3001\u305d\u306e\u7cbe\u5ea6\u3067\u51e6\u7406\u3092\u958b\u59cb\u3067\u304d\u308b\u3053\u3068\u306f\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002[2\u3001NOTES]<\/p>\n<h2>\u8a55\u4fa1\u3059\u308b\u3068\u304d\u306f\u3001\u6642\u8a08\u30fb\u5f85\u3061\u65b9\u30fb\u5b9f\u884c\u9045\u308c\u3092\u5206\u3051\u308b<\/h2>\n<p>\u8ca0\u306e\u6240\u8981\u6642\u9593\u3084\u3001\u5468\u671f\u306e\u305a\u308c\u3092\u898b\u3064\u3051\u305f\u3089\u3001\u307e\u305a\u8a18\u9332\u3057\u305f\u6642\u8a08\u306e\u7a2e\u985e\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u5dee\u5206\u3092\u8a08\u7b97\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u76f8\u5bfe\u5f85\u6a5f\u306a\u306e\u304b\u3001\u7d76\u5bfe\u671f\u9650\u306a\u306e\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u30b5\u30b9\u30da\u30f3\u30c9\u3092\u542b\u3081\u308b\u304b\u3001\u5468\u6ce2\u6570\u88dc\u6b63\u306e\u5f71\u97ff\u3092\u3069\u3046\u6271\u3046\u304b\u3001\u671f\u9650\u5f8c\u306e\u5b9f\u884c\u9045\u308c\u3092\u3069\u3046\u8a18\u9332\u3059\u308b\u304b\u3092\u63c3\u3048\u307e\u3059\u3002<\/p>\n<p>\u672c\u7a3f\u306e5\u79d2\u30fb20\u79d2\u306e\u5909\u66f4\u3001\u30b5\u30b9\u30da\u30f3\u30c9\u4f8b\u3001\u5468\u671f\u4f8b\u306f\u3059\u3079\u3066\u5408\u6210\u8a08\u7b97\u3067\u3059\u3002\u5229\u7528\u8005\u306e\u6a5f\u5668\u306e\u6642\u8a08\u3084\u96fb\u6e90\u8a2d\u5b9a\u306f\u5909\u66f4\u3057\u3066\u304a\u3089\u305a\u3001Linux\u5b9f\u6a5f\u3067\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u9045\u5ef6\u3082\u6e2c\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u30ed\u30b0\u306e\u65e5\u6642\u306f\u51fa\u6765\u4e8b\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u306b\u6b8b\u3057\u3001\u7d4c\u904e\u6642\u9593\u306f\u9069\u5207\u306a\u540c\u4e00\u6642\u8a08\u306e\u5dee\u3068\u3057\u3066\u6e2c\u308b\u3002\u3053\u306e\u4e8c\u3064\u3092\u533a\u5225\u3059\u308b\u3053\u3068\u3067\u3001\u6642\u523b\u540c\u671f\u306e\u8abf\u6574\u3068\u51e6\u7406\u305d\u306e\u3082\u306e\u306e\u9045\u3055\u3092\u6df7\u540c\u3057\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ol>\n<li>Linux man-pages 6.19\u3001clock_getres(2) \/ clock_gettime(2) \/ clock_settime(2)\u3001DESCRIPTION\u30fbVERSIONS\u3002<a href=\"https:\/\/man7.org\/linux\/man-pages\/man2\/clock_gettime.2.html\">\u516c\u958b\u30de\u30cb\u30e5\u30a2\u30eb<\/a>\uff082026\u5e7410\u670822\u65e5\u53d6\u5f97\uff09\u3002\u5404\u6642\u8a08\u306e\u610f\u5473\u3068Linux\u56fa\u6709\u306e\u6761\u4ef6\u3092\u53c2\u7167\u3002<\/li>\n<li>Linux man-pages 6.19\u3001clock_nanosleep(2)\u3001DESCRIPTION\u30fbNOTES\u3002<a href=\"https:\/\/man7.org\/linux\/man-pages\/man2\/clock_nanosleep.2.html\">\u516c\u958b\u30de\u30cb\u30e5\u30a2\u30eb<\/a>\uff08\u540c\u65e5\u53d6\u5f97\uff09\u3002\u76f8\u5bfe\u30fb\u7d76\u5bfe\u6307\u5b9a\u3001\u4e2d\u65ad\u3001\u4e38\u3081\u3001\u5b9f\u884c\u518d\u958b\u306e\u9045\u308c\u3092\u53c2\u7167\u3002\u6570\u5024\u4f8b\u30fb\u56f3\u306fQuantum Sea\u72ec\u81ea\u306e\u5408\u6210\u30e2\u30c7\u30eb\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u51e6\u7406\u306b\u4f55\u79d2\u304b\u304b\u3063\u305f\u304b\u3092\u8abf\u3079\u308b\u305f\u3081\u3001\u958b\u59cb\u3068\u7d42\u4e86\u306e\u6642\u523b\u3092\u5f15\u304d\u7b97\u3057\u305f\u3089\u3001\u8ca0\u306e\u5024\u306b\u306a\u3063\u305f\u3002\u3053\u308c\u306f\u8a08\u7b97\u306e\u8aa4\u308a\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u73fe\u5728\u306e\u65e5\u6642\u3092\u8868\u3059\u6642\u8a08\u306f\u3001\u9014\u4e2d\u3067\u5408\u308f\u305b\u76f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002Linux\u3067\u306f\u3001\u65e5\u6642\u3001\u7d4c\u904e\u6642\u9593\u3001\u30b5\u30b9\u30da\u30f3\u30c9 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1117,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[30],"tags":[244],"class_list":["post-1119","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computing","tag-linux"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-linux-monotonic-clock-deadline-20261022-featured-754ad1b2f264.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1119"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1119\/revisions"}],"predecessor-version":[{"id":1120,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1119\/revisions\/1120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1117"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}