From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FROM,MAILING_LIST_MULTI, RCVD_IN_MSPIKE_H2,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 3220 invoked from network); 31 May 2022 18:28:18 -0000 Received: from tb-ob0.topicbox.com (64.147.108.117) by inbox.vuxu.org with ESMTPUTF8; 31 May 2022 18:28:18 -0000 Received: from tb-mx0.topicbox.com (tb-mx0.nyi.icgroup.com [10.90.30.73]) by tb-ob0.topicbox.com (Postfix) with ESMTP id 75FC620506 for ; Tue, 31 May 2022 14:28:09 -0400 (EDT) (envelope-from bounce.mM650fba778076835adf9ce8df.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx0.topicbox.com (Postfix, from userid 1132) id 6F4C425D0DF4; Tue, 31 May 2022 14:28:09 -0400 (EDT) ARC-Authentication-Results: i=2; topicbox.com; arc=pass; dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=hSMF2dQE header.a=rsa-sha256 header.s=20210112 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; spf=pass smtp.mailfrom=23hiro@gmail.com smtp.helo=mail-pf1-f181.google.com; x-internal-arc=fail (as.1.topicbox.com=pass, ams.1.topicbox.com=fail (message has been altered)) (Message modified while forwarding at Topicbox) ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d= topicbox.com; h=mime-version:in-reply-to:references:from:date :message-id:subject:to:content-type:list-help:list-id:list-post :list-subscribe:reply-to:content-transfer-encoding :list-unsubscribe; s=sysmsg-1; t=1654021689; bh=LA53NU9/G4LGe55/ c/kukA3QpaxOEvLLdLDAwFIvNbs=; b=h9a3DNgFUNKVDjPwBKWImqkjPgj0mX3+ I3ZxRqz3tLlKEjNMjnIc2jbH03/NHtF76/YdL2XLXggFU4HmEpkfU6BqVAoo+Gnf fym7URayp30yPAcu3WLvXQVh7toxxPXlKtRKSFJLh087wU62/A+fvpyCOt6BeeE1 9nq0q6yTGGw= ARC-Seal: i=2; a=rsa-sha256; cv=pass; d=topicbox.com; s=sysmsg-1; t= 1654021689; b=KlDoapv1RQOw2cw+tWwLwo2IdZsV4TkNaKI+jYVlNuOSgikLaw rKwJyODTVBObWZ2qZwG/WFTh5LvGhuXm9ffeiFyPoK2rvypX/o+yV85SjePoJN2q 6GbJo7sGdfxK6N0Ehpa36bobcgVfqLbJBQ9uVSnDtDQ7q3WVXCGQMmA+Y= Authentication-Results: topicbox.com; arc=pass; dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=hSMF2dQE header.a=rsa-sha256 header.s=20210112 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; spf=pass smtp.mailfrom=23hiro@gmail.com smtp.helo=mail-pf1-f181.google.com; x-internal-arc=fail (as.1.topicbox.com=pass, ams.1.topicbox.com=fail (message has been altered)) (Message modified while forwarding at Topicbox) X-Received-Authentication-Results: tb-mx1.topicbox.com; arc=none (no signatures found); bimi=skipped (DMARC Policy is not at enforcement); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=hSMF2dQE header.a=rsa-sha256 header.s=20210112 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; iprev=pass smtp.remote-ip=209.85.210.181 (mail-pf1-f181.google.com); spf=pass smtp.mailfrom=23hiro@gmail.com smtp.helo=mail-pf1-f181.google.com; x-aligned-from=pass (Address match); x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=MNAmDdhR; x-me-sender=none; x-ptr=pass smtp.helo=mail-pf1-f181.google.com policy.ptr=mail-pf1-f181.google.com; x-return-mx=pass header.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com); x-return-mx=pass smtp.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com); x-tls=pass smtp.version=TLSv1.2 smtp.cipher=ECDHE-RSA-AES256-GCM-SHA384 smtp.bits=256/256; x-vs=clean score=0 state=0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h= mime-version:in-reply-to:references:from:date:message-id:subject :to:content-type:list-help:list-id:list-post:list-subscribe :reply-to:content-transfer-encoding:list-unsubscribe; s=dkim-1; t=1654021689; x=1654108089; bh=LA53NU9/G4LGe55/c/kukA3QpaxOEvLL dLDAwFIvNbs=; b=dCb4XrnwK2c37dVyY99iao/LR3d5qfnU0TsVaSKAbaFI/2Zy IQaw59U2TKTTD9XuACYHwCaBtGlSEhFTurT0qoyFmy5+Hc203rQm41LQOzCVgIBn PwQ+ElVTyFxC+LAMvHZTvxPU05LchmILr7F7A5wyS68FICjTKmyGZ5Vl/7E= Received: from tb-mx1.topicbox.com (localhost.local [127.0.0.1]) by tb-mx1.topicbox.com (Postfix) with ESMTP id DA4C21508080 for <9fans@9fans.net>; Tue, 31 May 2022 14:27:54 -0400 (EDT) (envelope-from 23hiro@gmail.com) Received: from tb-mx1.topicbox.com (localhost [127.0.0.1]) by tb-mx1.topicbox.com (Authentication Milter) with ESMTP id D6C10C790A1; Tue, 31 May 2022 14:27:54 -0400 ARC-Seal: i=1; a=rsa-sha256; cv=none; d=topicbox.com; s=arcseal; t= 1654021674; b=h4srWgT/jRrl/hHIMcDPONFRJj8gZsSFR7HPCyb8xf0M1vdR18 zmfghsqNKJn8FaxQMeZvSa8+kNLpSStS6b04MxXfnvazzqXjFVnKxgTme+8GGI+l MYnGyZRcqnSp66CxrZ3oC+VH61PUG1LdOj+Dh1qgOiUX1hzV2EVKMWYVszrVn0Pq KtyQVkVRhLBgr+T+WFWm7yoG1tuROVl/ldaWbw+JoGx+BYewQ8a+cJCuEHhF4/hm 4NIH7cSsm8vr2BJSzRIHZuUj5RkK7SogRC1D0oP5G4DLp0JXSQIiwz1aP6t7leER Tf7tsugYLf/1rLswRdx2pLDyGhUBeCC09tIg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= topicbox.com; h=mime-version:in-reply-to:references:from:date :message-id:subject:to:content-type; s=arcseal; t=1654021674; bh=4cVm6nFkS2P42EboWLh1W2GKIuxzJngdtqCRTYR133k=; b=lXbTGotuCBoX UIgKhtM+TZUnuVBl8mlaIHxGpQsvr/qVSCnoI8CxrqilVFSGl+4946dxrWRnxq5R FVPmDPf86THis6y6tsEq+lqHbOt08nGI6gUq6pE9clgZwzD+ab/efcfmjTTmfVOw 0t56ik0cZoiE3meYyL9PxK8Xn5JIHUZ9dZgmTNgQI7o30/ANDq5O6I3qWLvc18te MVDXcmHGytJc/eznVsqNxasNbrScsLjO2cUMVzTSsuCkxXdVHij8OlFdnYGGhxGF /ApCm1ALoddFk0p8VMUr78WhtjPY5mkDuM9Z06BMhzAwTN6MxjE9nKHt7+G54AJS YHHRPChJnw== ARC-Authentication-Results: i=1; tb-mx1.topicbox.com; arc=none (no signatures found); bimi=skipped (DMARC Policy is not at enforcement); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=hSMF2dQE header.a=rsa-sha256 header.s=20210112 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; iprev=pass smtp.remote-ip=209.85.210.181 (mail-pf1-f181.google.com); spf=pass smtp.mailfrom=23hiro@gmail.com smtp.helo=mail-pf1-f181.google.com; x-aligned-from=pass (Address match); x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=MNAmDdhR; x-me-sender=none; x-ptr=pass smtp.helo=mail-pf1-f181.google.com policy.ptr=mail-pf1-f181.google.com; x-return-mx=pass header.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com); x-return-mx=pass smtp.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com); x-tls=pass smtp.version=TLSv1.2 smtp.cipher=ECDHE-RSA-AES256-GCM-SHA384 smtp.bits=256/256; x-vs=clean score=0 state=0 X-ME-VSCause: gggruggvucftvghtrhhoucdtuddrgedvfedrkeekgdduvdehucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggvpdfu rfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucenucfjughrpegjfhfhff fkuffvtgesthdtredttddtjeenucfhrhhomhephhhirhhouceovdefhhhirhhosehgmhgr ihhlrdgtohhmqeenucggtffrrghtthgvrhhnpedvveegfefgveeigfdthfegveehvddvle eiteeuleejheekjeekjeekgeevgfefgfenucffohhmrghinhepghhithhhuhgsrdgtohhm pdhtohhpihgtsghogidrtghomhenucfkphepvddtledrkeehrddvuddtrddukedunecuve hluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepvddtledrkeehrddvuddt rddukedupdhhvghlohepmhgrihhlqdhpfhduqdhfudekuddrghhoohhglhgvrdgtohhmpd hmrghilhhfrhhomhepoedvfehhihhrohesghhmrghilhdrtghomheq X-ME-VSScore: 0 X-ME-VSCategory: clean Received-SPF: pass (gmail.com ... _spf.google.com: Sender is authorized to use '23hiro@gmail.com' in 'mfrom' identity (mechanism 'include:_netblocks.google.com' matched)) receiver=tb-mx1.topicbox.com; identity=mailfrom; envelope-from="23hiro@gmail.com"; helo=mail-pf1-f181.google.com; client-ip=209.85.210.181 Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx1.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Tue, 31 May 2022 14:27:54 -0400 (EDT) (envelope-from 23hiro@gmail.com) Received: by mail-pf1-f181.google.com with SMTP id u2so3027845pfc.2 for <9fans@9fans.net>; Tue, 31 May 2022 11:27:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=4cVm6nFkS2P42EboWLh1W2GKIuxzJngdtqCRTYR133k=; b=MNAmDdhRUyWT3xrxflHr6ghVa83Iwlkd0wdW/3kf9G8UMFttImX8Vh7Bog3abVQKyy mmvUeM2XpKW23wSSrHAOrXN+5CZJwtDhc8Do/kJrGjKTjI71YiBQPIOXUoAiyT7QEE2L Gqj2rEFYCZ11epkjaIrYrcohMOl10v0BMtbrykTfHQhP4qlmyvoM9LR0eXy/NmERtCJt KxJJsS6Q5SEbEiJ96fhe1lnfX1muRLvqdZdiR7mtdN2bBmE5ZDSCOSOHpoYLDbNXOe+T Y7Dz+o3F1PuerSxYMkJJU04nUgEL8JOjMjROraHt9N0sDwtUIq1zProI42yvpJfvN5Ju ecaA== X-Gm-Message-State: AOAM530t89LKwESLPfF+UAyP94RGnWUsaX2dK4fv/61zI/Wgo0MtkuF9 zfQP/hFu9RgdFOQzcBBHKY4hx1SQvwmEox4gV7vsqiqz X-Google-Smtp-Source: ABdhPJwG2e1s6n74ISRTEsiWGj9lxOuLad7xKNgDq53/YfAxAnkpGoL2aaPLigs0Lssh0SNb1KSPyle7602SPpJUocY= X-Received: by 2002:a62:1758:0:b0:51b:35d3:c9c8 with SMTP id 85-20020a621758000000b0051b35d3c9c8mr862990pfx.29.1654021673376; Tue, 31 May 2022 11:27:53 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a05:7300:64cc:b0:60:be3a:16c2 with HTTP; Tue, 31 May 2022 11:27:52 -0700 (PDT) In-Reply-To: References: <548D3C1F-DFCC-4DCE-AB37-3CA48997AE69@iitbombay.org> From: hiro <23hiro@gmail.com> Date: Tue, 31 May 2022 20:27:52 +0200 Message-ID: Subject: Re: [9fans] 9p server to multiply 9p messages? To: 9fans <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 65bdb9b2-e10f-11ec-a1e3-c9bc156d9ffe Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UNzY5ODU0ZmFmZDJiN2QzNS1NNjUwZmJhNzc4MDc2ODM1YWRmOWNl?= =?UTF-8?B?OGRmPg==?= 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-Transfer-Encoding: quoted-printable List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M650fba778076835adf9ce8df:1:jY0YU_t7GAvZC5ni4xfIhG_dh6QtlcIpYLTzTNRbwS8 so virtiofs is not using 9p any more? and with 10 million parallel requests, why shouldn't 9p be able to deliver 10GB/s ?! On 5/31/22, ron minnich wrote: > On Mon, May 30, 2022 at 12:21 AM Bakul Shah wrote: >> 9p itself is low performance but that is a separate issue. >=20 > Bakul, what are the units? It might be helpful to quantify this > statement. Are you possibly conflating Plan 9 file systems being slow > and 9p being slow? >=20 > As Rob pointed out in 2013, "If go install is slow on Plan 9, it's > because Plan 9's file system is > slow (which it is and always has been)", so slowness in Plan 9 file > systems is to be expected. >=20 > 9p itself does have its limits, which is why Bell Labs Antwerp started > an effort in 2011 to replace it, but the new work never went very far. >=20 > I also know of a number of efforts in the virtualization world where > 9p was discarded for performance reasons. It's hard to argue with the > 100x performance improvement that comes with virtiofs, for example. >=20 > Gvisor is replacing 9p: https://github.com/google/gvisor/milestone/6. > Although, in the latter case, I would argue the problem is more with > Linux limitations than 9p limitations -- linux can't seem to walk more > than one pathname component at a time, for example, since it has the > old school namei loop. >=20 > But I'm wondering if you have a measurement with numbers. >=20 > For rough order of magnitude, HPC file systems can deliver 10 Gbytes/ > second for file reads nowadays, but getting there took 20 years of > work. When we ran Plan 9 on Blue Gene, with the 6 Gbyte/second > toroidal mesh connect for each node, we never came remotely close to > that figure. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T769854fafd2b7d35-M650fb= a778076835adf9ce8df Delivery options: https://9fans.topicbox.com/groups/9fans/subscription