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=-3.5 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 488BEC3A5A2 for ; Tue, 3 Sep 2019 16:05:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0D85122CF8 for ; Tue, 3 Sep 2019 16:05:30 +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="naBgiF0A" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0D85122CF8 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 8EBB56B0007; Tue, 3 Sep 2019 12:05:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8C3536B0008; Tue, 3 Sep 2019 12:05:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7FF106B000C; Tue, 3 Sep 2019 12:05:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0027.hostedemail.com [216.40.44.27]) by kanga.kvack.org (Postfix) with ESMTP id 5DF0C6B0007 for ; Tue, 3 Sep 2019 12:05:30 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id F3A90824CA3A for ; Tue, 3 Sep 2019 16:05:29 +0000 (UTC) X-FDA: 75894084420.16.ship56_6a0760a22c35d X-HE-Tag: ship56_6a0760a22c35d X-Filterd-Recvd-Size: 4091 Received: from mail-pl1-f193.google.com (mail-pl1-f193.google.com [209.85.214.193]) by imf43.hostedemail.com (Postfix) with ESMTP for ; Tue, 3 Sep 2019 16:05:28 +0000 (UTC) Received: by mail-pl1-f193.google.com with SMTP id k1so725452pls.11 for ; Tue, 03 Sep 2019 09:05:28 -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=tvXTRb5lTb+8B5XFSXnCmcD2ylzHPHyUlLmT6O6bjB8=; b=naBgiF0A8QgRy89rtmqoTZomowJ9uK/5AjCwiOZkdqSavGAgTEtHUEvi3BuU+ZsR1r Hk+/hBPe1mkmKr60NVAHnRmirg+F+2g+Kzua5FSmcqPhYpv/3jdJVV574ad54ITN73Rc cTYQMsE1N2FSJTVX5MTKW99AZnjgQlaS+vTsRl5fu1l4kykTT6PaT8J+1a6TJMHCDLIA JMj0TNF2mZ8XLf5nO/ABWSytNCpSpqefNx9kmcA5L2oAFj5jpP9ieWNMqzJxIxcCHUzE efpooqpVNE6l5QYc5zJMJQfBNTkEIMiuEPVCz9952cFkjaKFBkEJQTdUdPiSugr3iMA/ +jjA== 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=tvXTRb5lTb+8B5XFSXnCmcD2ylzHPHyUlLmT6O6bjB8=; b=MEGd0LKUDYN8L9AMpskHXq0NMwLY7EqVK2pKebxyk7tvI0Tblo6HZm5iTMHZFOKK35 ezdFdkB0leO9YR+NTBeEAIEsuPPb+E3g0prJiduxqrLX+GvIvpvNYXZMCEtEceM464wt 4ykGGnyEh0ZjVZNbisOW/uwU91jMkIhWHdkgtmHp1vjhofdQjJm1S6DXFD3RT4ObuTL0 EfuLkXuciLt6qS/bZ2+MTWuOI6YEqANM5CSZ6zcoASeoIK8vJrZ9lyiC/oOYGfSMsd58 A30RGPdTnpRhNHihCtvn2wQpJIMLWD8oOrtOnCkVOnlj3rSlGzni3StNxn4fKzC/R5oT Lf9A== X-Gm-Message-State: APjAAAXihe7RGjpFrFRHU7w5GntUu/A6R9P0HwbaiEtVA26loSdqlKJU fC0VfT0jTSodrbsafFXIkoY= X-Google-Smtp-Source: APXvYqyG6ZxmJJmQ0MptfKqojMuF0K9Hu8/u4HROKumd5y2lXA1oHOH6rCFG98Ani34IiiGqmlRU+w== X-Received: by 2002:a17:902:7792:: with SMTP id o18mr19221994pll.73.1567526726698; Tue, 03 Sep 2019 09:05:26 -0700 (PDT) Received: from localhost.localdomain.localdomain ([2408:823c:c11:160:b8c3:8577:bf2f:3]) by smtp.gmail.com with ESMTPSA id t11sm18501567pgb.33.2019.09.03.09.05.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Sep 2019 09:05:26 -0700 (PDT) From: Pengfei Li To: akpm@linux-foundation.org Cc: 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 0/5] mm, slab: Make kmalloc_info[] contain all types of names Date: Wed, 4 Sep 2019 00:04:25 +0800 Message-Id: <20190903160430.1368-1-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=0.000010, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 (5): mm, slab: Make kmalloc_info[] contain all types of names mm, slab_common: Remove unused kmalloc_cache_name() 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 | 101 +++++++++++++++++++++++-------------------- 4 files changed, 59 insertions(+), 71 deletions(-) --=20 2.21.0