From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05FD0C49ED6 for ; Mon, 9 Sep 2019 17:07:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BE32021924 for ; Mon, 9 Sep 2019 17:07:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="bfQesemg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE32021924 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 53D676B0007; Mon, 9 Sep 2019 13:07:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4EE276B0008; Mon, 9 Sep 2019 13:07:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4040A6B000A; Mon, 9 Sep 2019 13:07:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0234.hostedemail.com [216.40.44.234]) by kanga.kvack.org (Postfix) with ESMTP id 206AE6B0007 for ; Mon, 9 Sep 2019 13:07:53 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 854A4824376D for ; Mon, 9 Sep 2019 17:07:52 +0000 (UTC) X-FDA: 75916014384.04.fly06_7eead61fb512b X-HE-Tag: fly06_7eead61fb512b X-Filterd-Recvd-Size: 4172 Received: from mail-pf1-f196.google.com (mail-pf1-f196.google.com [209.85.210.196]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Mon, 9 Sep 2019 17:07:52 +0000 (UTC) Received: by mail-pf1-f196.google.com with SMTP id q5so9527192pfg.13 for ; Mon, 09 Sep 2019 10:07:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=ya4un5YA0owQideI/MnR/HmIg6HIggVszRA4CHgSJSk=; b=bfQesemgwud5nizYMr1grKMmyrd48AgVHvSmTFX3YLhGq0ftejWHsv0MINm76i5tkP ahjuoLde76YMxLrU1imGriyhbxPRckv3CgiLiKghA4Ow3ZSAKJ/SFNXK1A/Tn6JSxxd8 EL2G4o4aTG8clSIR2eJcmlyL0oTxrRNm+IkBFr4HgVPUEbNRhRqD7ThhU/2cywFytlKz R0FYTZ2ee5UrKVBHhtCWuB8RZlfZK4B6Jzq1RMpiy+nVfVTJ1Z62J9AEpxgzcfcQrA76 ZQGZvEqkfT64cI12flI8eZotZPdJaIuLl9y0HGAf/Xdkg+u82EyIkDTKT2eeHjrcOdtv UH4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=ya4un5YA0owQideI/MnR/HmIg6HIggVszRA4CHgSJSk=; b=K1kDNdunwYzX3jYJRFjWyKG2LAKgFb44J+mPF3sXp8Ym4hpTingb0GRjZsdPYn60fd jiJvxZi9lY9WfugkB06hmxGG+wzI99nSR9E/aFI5IL3+o5vIwO65Izl8XfM+YU7c+5PZ 1v7QeFiUk7opBvjQ/RHk9Wt/xRg0XXkgjeZoT7CSgWM6RA2+k2LUchzYA3JMDccgzT4N HtXKY6W8g6RSSDk+51pKSHDTgBXQ7KN9l9qbUJFVuownWOyxM/TX2DE0g+Dl+0BUyt5O povrY/71c/Fdikg+ncwfhIDa14ZIbvE5JJRFon0ny+OgjjC8W2nfyvmEkzJ7HrZfevP7 Wcrw== X-Gm-Message-State: APjAAAWlbhcYAZ29ZwTHNKNH7fxci2aYgnj8cGwhXl1ZD0WC3UXlt3wY BzI0TsXlBoH+IhojqO7Dfh0= X-Google-Smtp-Source: APXvYqz3vBlQUNXO/ZoZ7N3F3CgJYvVeA+Owe2P7RRBLPpKBiWdjqh2EzcIQTKhtuKJBDyw0X+BTtg== X-Received: by 2002:a62:1cd2:: with SMTP id c201mr29332690pfc.51.1568048870991; Mon, 09 Sep 2019 10:07:50 -0700 (PDT) Received: from localhost.localdomain.localdomain ([2408:823c:c11:160:b8c3:8577:bf2f:3]) by smtp.gmail.com with ESMTPSA id b18sm107015pju.16.2019.09.09.10.07.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Sep 2019 10:07:50 -0700 (PDT) From: Pengfei Li To: akpm@linux-foundation.org Cc: vbabka@suse.cz, cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Pengfei Li Subject: [PATCH v2 0/4] mm, slab: Make kmalloc_info[] contain all types of names Date: Tue, 10 Sep 2019 01:07:11 +0800 Message-Id: <20190909170715.32545-1-lpf.vector@gmail.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Changes in v2 -- 1. remove __initconst (patch 1/5) 2. squash patch 2/5 3. add ack tag from Vlastimil Babka There are three types of kmalloc, KMALLOC_NORMAL, KMALLOC_RECLAIM and KMALLOC_DMA. The name of KMALLOC_NORMAL is contained in kmalloc_info[].name, but the names of KMALLOC_RECLAIM and KMALLOC_DMA are dynamically generated by kmalloc_cache_name(). Patch1 predefines the names of all types of kmalloc to save the time spent dynamically generating names. The other 4 patches did some cleanup work. These changes make sense, and the time spent by new_kmalloc_cache() has been reduced by approximately 36.3%. Time spent by new_kmalloc_cache() 5.3-rc7 66264 5.3-rc7+patch 42188 Pengfei Li (4): mm, slab: Make kmalloc_info[] contain all types of names mm, slab: Remove unused kmalloc_size() mm, slab_common: Make 'type' is enum kmalloc_cache_type mm, slab_common: Make initializing KMALLOC_DMA start from 1 include/linux/slab.h | 20 --------- mm/slab.c | 7 +-- mm/slab.h | 2 +- mm/slab_common.c | 103 +++++++++++++++++++++++-------------------- 4 files changed, 60 insertions(+), 72 deletions(-) --=20 2.21.0