From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from [87.239.111.99] (localhost [127.0.0.1]) by dev.tarantool.org (Postfix) with ESMTP id A267F15F7CD4; Fri, 24 Oct 2025 13:51:45 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 dev.tarantool.org A267F15F7CD4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tarantool.org; s=dev; t=1761303105; bh=+EqM/2EI8NtibkfOhM9jTPUJqU13e+Jia/BTeXZ6Y0w=; h=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=chGuVNs3mgoRnCTswFPD9MYBQ0M2lKxw4b0JuZ+Qgbw3qq8Xa/m8864K+3GUvB+Wv KYa9K1LUeczdVO83NsO0Dl8klMdTp2ZjToYrqdTu/n5cs5PpiEsruDbfvykVzczHqU ETfO2PREAmWsPZ4TV/TFIu08sx6dpcF/VD8V0EQ4= Received: from send265.i.mail.ru (send265.i.mail.ru [95.163.59.104]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by dev.tarantool.org (Postfix) with ESMTPS id 3252015B1F79 for ; Fri, 24 Oct 2025 13:50:47 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 dev.tarantool.org 3252015B1F79 Received: by exim-smtp-855f5997bb-88mr2 with esmtpa (envelope-from ) id 1vCFNe-000000006vv-0T0L; Fri, 24 Oct 2025 13:50:46 +0300 To: Sergey Bronnikov Date: Fri, 24 Oct 2025 13:50:06 +0300 Message-ID: <9c378a741df0ebcd8e56ec738436ff450c167d72.1761301736.git.skaplun@tarantool.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailru-Src: smtp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eAau8CL7WIMRKs4sN3D3tLDjz0dLbV79QFUyzQ2Ujvy7cMT6pYYqY16iZVKkSc3dCLJ7zSJH7+u4VD18S7Vl4ZUrpaVfd2+vE6kuoey4m4VkSEu53w8ahmwBjZKM/YPHZyZHvz5uv+WouB9+ObcCpyrx6l7KImUglyhkEat/+ysWwi0gdhEs0JGjl6ggRWTy1haxBpVdbIX1nthFXMZebaIdHP2ghjoIc/363UZI6Kf1ptIMVRN2q9QiacRuC9j17BVVhmo= X-DA7885C5: BF1CAEB8E9295B4FF255D290C0D534F9CBA80022D8E4EE02D929D2C98B2AD8F942357FF5336B74455B1A4C17EAA7BC4BEF2421ABFA55128DAF83EF9164C44C7E X-Mailru-Sender: 689FA8AB762F7393DDD5FD59B456EAD28714D3EB4F31650811988E4495A63B6E45ED9CA589034378E49D44BB4BD9522A059A1ED8796F048DB274557F927329BE89D5A3BC2B10C37545BD1C3CC395C826B4A721A3011E896F X-Mras: Ok Subject: [Tarantool-patches] [PATCH v1 luajit 02/41] perf: introduce clock module X-BeenThere: tarantool-patches@dev.tarantool.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Tarantool development patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Sergey Kaplun via Tarantool-patches Reply-To: Sergey Kaplun Cc: tarantool-patches@dev.tarantool.org Errors-To: tarantool-patches-bounces@dev.tarantool.org Sender: "Tarantool-patches" This module contains 2 functions: - `realtime()` -- returns the time represented by the wall clock. - `process_cputime()` -- returns the time consumed by all threads of the process. Both functions are implemented via FFI call to the `clock_gettime()`. --- perf/utils/clock.lua | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 perf/utils/clock.lua diff --git a/perf/utils/clock.lua b/perf/utils/clock.lua new file mode 100644 index 00000000..57385967 --- /dev/null +++ b/perf/utils/clock.lua @@ -0,0 +1,35 @@ +local ffi = require('ffi') + +ffi.cdef[[ +struct timespec { + long tv_sec; /* Seconds. */ + long tv_nsec; /* Nanoseconds. */ +}; + +int clock_gettime(int clockid, struct timespec *tp); +]] + +local C = ffi.C + +-- Wall clock. +local CLOCK_REALTIME = 0 +-- CPU time consumed by the process. +local CLOCK_PROCESS_CPUTIME_ID = 2 + +-- All functions below returns the corresponding `clock_gettime()` +-- in seconds. +local M = {} + +local timespec = ffi.new('struct timespec[1]') + +function M.realtime() + C.clock_gettime(CLOCK_REALTIME, timespec) + return tonumber(timespec[0].tv_sec) + tonumber(timespec[0].tv_nsec) / 1e9 +end + +function M.process_cputime() + C.clock_gettime(CLOCK_PROCESS_CPUTIME_ID, timespec) + return tonumber(timespec[0].tv_sec) + tonumber(timespec[0].tv_nsec) / 1e9 +end + +return M -- 2.51.0