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=0.2 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,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.4 Received: from tb-ob0.topicbox.com (tb-ob0.topicbox.com [64.147.108.117]) by inbox.vuxu.org (Postfix) with ESMTP id 934F82735B for ; Thu, 13 Jun 2024 21:41:52 +0200 (CEST) Received: from tb-mx0.topicbox.com (tb-mx0.nyi.icgroup.com [10.90.30.73]) by tb-ob0.topicbox.com (Postfix) with ESMTP id 8439A1FBAB for ; Thu, 13 Jun 2024 15:41:51 -0400 (EDT) (envelope-from bounce.mM019008e416672a06797b66a8.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx0.topicbox.com (Postfix, from userid 1132) id 7FE8D1BE8749; Thu, 13 Jun 2024 15:41:51 -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=1718307711; x=1718394111; bh=rFUiz3csOy6gwLZAt0PYbS1sN19Xhr6s rkcbjojmabc=; b=XDpq+LCDT77L9MqlDW3uz5yKQiQfw3JuvW0GXTlCp5n1Ey9o /mH4KhSqlGph8BIP4af0x6/X4v/RSaHnZhEQdiqo2XR5qzXXSt7n58wfB3CfzqBV Y0Q4E3XbRvhcRz37OsL6ADc9kyeUzQPqmJfGEML3WfTxBP5jFJWIkUbgBoQ= From: wb.kloke@gmail.com To: 9fans <9fans@9fans.net> Subject: Re: [9fans] yet another try to fixup venti Message-Id: <17183077050.0a7ea132.3713@composer.9fans.topicbox.com> References: <9C832F275135C5830776F4656A698D43@eigenstate.org> <17182939550.C8ecf.211654@composer.9fans.topicbox.com> In-Reply-To: <17182939550.C8ecf.211654@composer.9fans.topicbox.com> Date: Thu, 13 Jun 2024 15:41:45 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=17183077051.E8cd.3713 Content-Transfer-Encoding: 7bit Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: f7e66198-29bc-11ef-abcf-b81740decc0b Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMjE4NzhhYTUzODg0OTExYi1NMDE5MDA4ZTQxNjY3MmEwNjc5N2I2?= =?UTF-8?B?NmE4Pg==?= 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:M019008e416672a06797b66a8:1:1Xj0WJcD5QKnTtEzTnvboHVk83xqP78Ebwx6lt-1apk --17183077051.E8cd.3713 Date: Thu, 13 Jun 2024 15:41:45 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I updated=C2=A0http://pkeus.de/~wb/mventi, adding a file mventi.c which is = venti.c + parts of index.c (to avoid linking the real index.o). I have some performance data now. I had to add a 4th arenapartition, which sealed the old partitions, so read= only acces is sufficient for them,. I served the partitions on the original venti system via nfs. On my AMD A10 workstation (32MB, 4 cores)=C2=A0 it took=C2=A0 12min real ti= me to vcat a 50GB ffs partiition to /dev/null. On the WD Mycloud system ( on which the arena partitions are local, ithe sa= me task took 33min. mventi: > time vcat ffs:ef6c183eabb7caafed7f85a3447a12accfbbeb8b > /dev/null > 1540096 blocks total > 1214607 blocks in use, 2754705 file reads >=20 > real 12m11,573s > user 2m33,463s > sys 0m34,604s original venti: > ime vcat ffs:ef6c183eabb7caafed7f85a3447a12accfbbeb8b > /dev/null > 1540096 blocks total > 1214607 blocks in use, 2754705 file reads > 504.283u 94.546s 2000.095r vcat ffs:ef6c183eabb7caafed7f85a3447a12acc= fbbeb8b >=20 I should add the remark, that I=C2=A0 was quite content with the performanc= e of=C2=A0 the same=C2=A0 file served as a dump file system ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T21878aa53884911b-M01900= 8e416672a06797b66a8 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --17183077051.E8cd.3713 Date: Thu, 13 Jun 2024 15:41:45 -0400 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I updated http://pkeus.de/~wb/mventi, adding a file mventi.c which is ven= ti.c + parts of index.c (to avoid linking the real index.o).

I have some performance data now.

=
I had to add a 4th arenapartition, which sealed the old partitio= ns, so readonly acces is sufficient for them,.
I served the= partitions on the original venti system via nfs.

On my AMD A10 workstation (32MB, 4 cores)  it took  12min= real time to vcat a 50GB ffs partiition to /dev/null.
On t= he WD Mycloud system ( on which the arena partitions are local, ithe same t= ask took 33min.

mventi:
time vcat ffs:ef6c183eabb7caafed7f85a3447a12accfbbeb8b &g= t; /dev/null
1540096 blocks total
1214607 b= locks in use, 2754705 file reads

real 12m1= 1,573s
user 2m33,463s
sys 0m34,604s

original venti:
ime vcat ffs:ef6c183eabb7caafed7f85a3447a12accfbbeb8b= > /dev/null
1540096 blocks total
121460= 7 blocks in use, 2754705 file reads
504.283u 94.546s 2000.0= 95r vcat ffs:ef6c183eabb7caafed7f85a3447a12accfbbeb8b
I should add the remark, that I  was quite = content with the performance of  the same  file served as a dump = file system

= --17183077051.E8cd.3713--