From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FORGED_GMAIL_RCVD,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=no autolearn_force=no version=3.4.4 Received: from tb-ob1.topicbox.com (tb-ob1.topicbox.com [64.147.108.173]) by inbox.vuxu.org (Postfix) with ESMTP id 50499290F8 for ; Sun, 26 May 2024 21:39:51 +0200 (CEST) Received: from tb-mx0.topicbox.com (tb-mx0.nyi.icgroup.com [10.90.30.73]) by tb-ob1.topicbox.com (Postfix) with ESMTP id 4F3DC1E4C2 for ; Sun, 26 May 2024 15:39:50 -0400 (EDT) (envelope-from bounce.mM45995ae775e5ed31efd6cdb6.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx0.topicbox.com (Postfix, from userid 1132) id 4D60A1A11819; Sun, 26 May 2024 15:39:50 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h=from:to :subject:message-id:references:in-reply-to:date:mime-version :content-type:content-transfer-encoding:list-help:list-id :list-post:list-subscribe:reply-to:list-unsubscribe; s=dkim-1; t=1716752390; x=1716838790; bh=JcqYtm/p+9ISVUTnvuqlVtgu05QxJIN0 mX8K+zCFxQY=; b=DM31vVjHxigca29Y2Llnb24/xHTp+h5JmhQkhmvshRhyKAae kSbStnpZzWdrKmFWQCBqNTm4B+mkjNICNYLiJ3eyLUi02Q7IrPy1n7i9IH0bkGvH 7YPJWkbdyHysG15oXPNbUaYt3O180hAHBiqwMHhznfNbG+87NVSE8ChmoKw= From: wb.kloke@gmail.com To: 9fans <9fans@9fans.net> Subject: Re: [9fans] Throwing in the Towel Message-Id: <17167523800.5BBf3dBb0.7751@composer.9fans.topicbox.com> References: <276B80FA-ECE2-44F1-BD53-F1A3D0E264BE@ecloud.org> <17148550650.4B5DfD4.836038@composer.9fans.topicbox.com> In-Reply-To: <17148550650.4B5DfD4.836038@composer.9fans.topicbox.com> Date: Sun, 26 May 2024 15:39:40 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=17167523801.4a4931cD.7751 Content-Transfer-Encoding: 7bit Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: b1cbb7b8-1b97-11ef-a1f6-b81740decc0b Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMmNhNjc0ODZjN2ExM2E3Ny1NNDU5OTVhZTc3NWU1ZWQzMWVmZDZj?= =?UTF-8?B?ZGI2Pg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M45995ae775e5ed31efd6cdb6:1:GQ2137hBWLFaDV0Mr2cxXYziGGHmujwqYx8btA5zUI0 --17167523801.4a4931cD.7751 Date: Sun, 26 May 2024 15:39:40 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I would like to refresh my questions from may 4th. Can it be the case that the venti index file exhibits a desastrous write pa= ttern for SSDs? I presume that each new block written to venti=C2=A0 causes a random block = to be rewritten in the index file, until the bucket is full (after 215 writ= es). Given, that the erasure blocks in the SSD may be of size 1MB or even 1= 28MB, each such write may be a big strain on the device.=C2=A0 Any opinions? ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T2ca67486c7a13a77-M45995= ae775e5ed31efd6cdb6 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --17167523801.4a4931cD.7751 Date: Sun, 26 May 2024 15:39:40 -0400 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I would like to refresh my questions from may = 4th.

Can it be the case that the venti ind= ex file exhibits a desastrous write pattern for SSDs?

I presume that each new block written to venti  causes a r= andom block to be rewritten in the index file, until the bucket is full (af= ter 215 writes). Given, that the erasure blocks in the SSD may be of size 1= MB or even 128MB, each such write may be a big strain on the device. <= br />

Any opinions?
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