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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F39C0C83F11 for ; Sat, 26 Aug 2023 16:43:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=run78isH9wzuv4qEeW4mY8FxhoAXSLzkLolztccpSzM=; b=ubYXcAFPtVnHBUX1SYC1WwOCFk hEKKYeBRfTLHACvab+sWgiH4hiiBEfdPILx0cm2jdbR63AmsmjAlEata8txyNTQz++AZdXZNsS1HI g7msLhezD5atv2u7WrofI8WFYAjWNi3m6a41WtpK4zxla90vP1vykJh4HfXE0nwJ08hVxy5UISYl/ eRt+5hsJCNuSoN5SwIUxaD0tMJ12o2KzVd4fX7s9XQd1na8QH0AHt3cGhtD9gLutj3HajTC0jXdkU 7jaC0fH84G7UXmRPfa0I8SeR6vPWkiLVdLABFkiagvoG/QIac8Y9QOzG8X/EKkuFWlVbtNvYzToP5 yN9QaS5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZwNw-0073s1-2a; Sat, 26 Aug 2023 16:43:40 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qZwNu-0073ra-0r; Sat, 26 Aug 2023 16:43:39 +0000 X-UUID: b08b55ba442f11ee912e1518a6540028-20230826 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=run78isH9wzuv4qEeW4mY8FxhoAXSLzkLolztccpSzM=; b=PwjqMvbrBO/ZU7p57J5iqNeMWApmC5ERFmMRQbiFU0j57V1ghXhHEJ5LNZ7eUuEJat8Z93KfKbHbUUWMPY0goa0bLZ7DNntkleegp9xriEGptqvXUJyZDhf90Hk6N2/JYF9QcwqV0U4bRvNqfeZoRSKHFnXb7+LkLgzH4zm9X/g=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.31,REQID:27f0d25a-54d0-4ffb-b55e-fceada216411,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:51,FILE:0,BULK:28,RULE:Release_Ham,ACTIO N:release,TS:79 X-CID-INFO: VERSION:1.1.31,REQID:27f0d25a-54d0-4ffb-b55e-fceada216411,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:51,FILE:0,BULK:28,RULE:Spam_GS981B3D,ACTIO N:quarantine,TS:79 X-CID-META: VersionHash:0ad78a4,CLOUDID:38b44dc2-1e57-4345-9d31-31ad9818b39f,B ulkID:230824185604G6OMGZAT,BulkQuantity:49,Recheck:0,SF:29|28|17|19|48|64| 102,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:40|20,QS:nil,BEC:ni l,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_FCD,TF_CID_SPAM_SNR,TF_CID_SPAM_SDM,TF_CID_SPAM_ASC, TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_OBB X-UUID: b08b55ba442f11ee912e1518a6540028-20230826 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1953981753; Sat, 26 Aug 2023 09:43:31 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 27 Aug 2023 00:43:28 +0800 Received: from mbjsdccf07.mediatek.inc (10.15.20.246) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sun, 27 Aug 2023 00:43:27 +0800 From: To: CC: , , , , , , , , Subject: Re: [PATCH 1/1] mmc: Set optimal I/O size when mmc_setip_queue Date: Sun, 27 Aug 2023 00:26:35 +0800 Message-ID: <20230826162635.617-1-Sharp.Xia@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <769a67cb-1b32-fd4f-b37e-e3ec4dab5eb9@rock-chips.com> References: <769a67cb-1b32-fd4f-b37e-e3ec4dab5eb9@rock-chips.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230826_094338_317902_33323592 X-CRM114-Status: GOOD ( 14.01 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Fri, 2023-08-25 at 17:17 +0800, Shawn Lin wrote: > > > On 2023/8/25 16:39, Sharp.Xia@mediatek.com wrote: > > On Fri, 2023-08-25 at 16:11 +0800, Shawn Lin wrote: > >> > >> Hi Sharp, > > ... > > >>> 1024 > >>> > > Hi Shawn, > > > > What is your readahead value before and after applying this patch? > > > > The original readahead is 128, and after applying the patch is 1024 > > > cat /d/mmc0/ios > clock: 200000000 Hz > actual clock: 200000000 Hz > vdd: 18 (3.0 ~ 3.1 V) > bus mode: 2 (push-pull) > chip select: 0 (don't care) > power mode: 2 (on) > bus width: 3 (8 bits) > timing spec: 10 (mmc HS400 enhanced strobe) > signal voltage: 1 (1.80 V) > driver type: 0 (driver type B) > > The driver I used is sdhci-of-dwcmshc.c with a KLMBG2JETDB041 eMMC > chip. I tested with RK3568 and sdhci-of-dwcmshc.c driver, the performance improved by 2~3%. Before: root@OpenWrt:/mnt/mmcblk0p3# time dd if=test.img of=/dev/null 2097152+0 records in 2097152+0 records out real 0m 6.01s user 0m 0.84s sys 0m 2.89s root@OpenWrt:/mnt/mmcblk0p3# cat /sys/block/mmcblk0/queue/read_ahead_kb 128 After: root@OpenWrt:/mnt/mmcblk0p3# echo 3 > /proc/sys/vm/drop_caches root@OpenWrt:/mnt/mmcblk0p3# time dd if=test.img of=/dev/null 2097152+0 records in 2097152+0 records out real 0m 5.86s user 0m 1.04s sys 0m 3.18s root@OpenWrt:/mnt/mmcblk0p3# cat /sys/block/mmcblk0/queue/read_ahead_kb 1024 root@OpenWrt:/sys/kernel/debug/mmc0# cat ios clock: 200000000 Hz actual clock: 200000000 Hz vdd: 18 (3.0 ~ 3.1 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 3 (8 bits) timing spec: 9 (mmc HS200) signal voltage: 1 (1.80 V) driver type: 0 (driver type B)