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identity=mailfrom; envelope-from="ak@triklod.rs"; helo=mx.triklod.rs; client-ip=185.119.89.11 Received: from mx.triklod.rs (mx.triklod.rs [185.119.89.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx0.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Fri, 1 Mar 2024 04:35:18 -0500 (EST) (envelope-from ak@triklod.rs) Received: from ikilid (unknown [192.168.1.222]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.triklod.rs (Postfix) with ESMTPSA id 936E359681 for <9fans@9fans.net>; Fri, 1 Mar 2024 10:32:20 +0100 (CET) Date: Fri, 1 Mar 2024 10:35:01 +0100 From: Aleksandar Kuktin To: 9fans@9fans.net Subject: Re: [9fans] dd(1) takes very long Message-ID: <20240301103501.762d6606@ikilid> In-Reply-To: References: <6141BAD3-1BE6-40F5-B9BA-4BE94EAF752F@germteig.com> <20240301095358.268edad4@ikilid> Mime-Version: 1.0 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 07d1c79c-d7af-11ee-a833-0f8d028c7b06 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMGZkNjQ0NGFjYjljNzgxMS1NYWFhN2UxN2IwMmQ4ZWE0ZGE2NWE0?= =?UTF-8?B?NTdlPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Content-type: multipart/mixed; boundary="----------=_1709285727-865776-0" Content-Transfer-Encoding: 7bit List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:Maaa7e17b02d8ea4da65a457e:1:fMqQcrXnv8QjIg0l6sgxiHVZsrnznCJbbef5YU49DnM ------------=_1709285727-865776-0 Content-Type: multipart/signed; boundary="Sig_/zU94d9jN9I1adephRfNZYK="; micalg=PGP-SHA1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit --Sig_/zU94d9jN9I1adephRfNZYK= Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable >On Fri, 1 Mar 2024 10:08:25 +0100 >Marco Feichtinger wrote: > > > and the computer isn't a SBC bitty box, the transfer rate is weirdly > > low. >=20 > Well, both disk are on the same machine. > It's a Supermicro X7SPA-H-D525 board. >=20 > -marco Well, that's not a bitty box. Wish I bought something like that instead of my BananaPi. Anyway, someone more knowledgeable on Plan 9 than me is needed. I can only speculate that the OS and hardware fight. I have something similar happening on my desktop with modern hardware running old software. I run GNU/Linux on it. For some reason I can't figure out, transfers start off normal but then degrade to 10 Mbps or less after a few GiB are transferred. If I try it with CentOS 7, it runs fine. But when I use my own homegrown distro it's pathologic. Kernel version 3.16.85, vanilla. --=20 Svi moji e-mailovi su kriptografski potpisani. Proverite ih. All of my e-mails are cryptographically signed. Verify them. -- You don't need an AI for a robot uprising. 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