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=0.0 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FORGED_GMAIL_RCVD,FREEMAIL_FROM,HTML_MESSAGE, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 20097 invoked from network); 4 Oct 2023 11:18:29 -0000 Received: from tb-ob1.topicbox.com (64.147.108.173) by inbox.vuxu.org with ESMTPUTF8; 4 Oct 2023 11:18:29 -0000 Received: from tb-mx1.topicbox.com (tb-mx1.nyi.icgroup.com [10.90.30.61]) by tb-ob1.topicbox.com (Postfix) with ESMTP id 220252AAF9 for ; Wed, 4 Oct 2023 07:18:28 -0400 (EDT) (envelope-from bounce.mMa028dd0e821a763795e71625.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx1.topicbox.com (Postfix, from userid 1132) id 2405F2685644; Wed, 4 Oct 2023 07:18:28 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h=from:to :message-id:date:mime-version:content-type :content-transfer-encoding:list-help:list-id:list-post :list-subscribe:reply-to:subject:list-unsubscribe; s=dkim-1; t= 1696418308; x=1696504708; bh=jfpeGe05G/GAGHLZoZ20MlecR4ksBz7aKY5 LFpqDWWc=; b=UCM0hYXN8X3J/w8N/1dlx93W9rLel6JDxC6HkZn9lJ730VqSIXt rcGMgePLMnWu92hQbrakzMhmezm8MNpXxbGV9tWhhtEs1VYjN9ppeCr47gynczEZ ysxRCqka2W1dR/niG1gdFj3LQhBL+Oxj8bZCqSeVmiQykPtLS4ebzlUs= From: dusan3sic@gmail.com To: 9fans <9fans@9fans.net> Message-Id: <16964183030.24ffCe99.58412@composer.9fans.topicbox.com> Date: Wed, 4 Oct 2023 07:18:23 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=16964183031.74F7.58412 Content-Transfer-Encoding: 7bit Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: bb27ebc8-62a7-11ee-b1ab-70e640decc0b Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMzFkYjA0ZWY4OTczN2QyNS1NYTAyOGRkMGU4MjFhNzYzNzk1ZTcx?= =?UTF-8?B?NjI1Pg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Subject: [9fans] Problem with outputing from kernel List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:Ma028dd0e821a763795e71625:1:7YGdDWve1r0NJ5lsUGYCZdZ7cdOLrZGhkNW_QUNZ2D0 --16964183031.74F7.58412 Date: Wed, 4 Oct 2023 07:18:23 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I added some logs in /sys/src/9/port/proc.c for some tests of the scheduler= , I want to see at what moments do real time processes take the cpu. I did = that with simple prints with the intention of doing cat /dev/kmesg > someFi= le because all the prints are stored there.=C2=A0=20 The problem is that the flow of output just randomly stops at times and con= tinues(only once by test) and i lose some of the output=C2=A0 which is real= ly important. Any ideas why? Also I was doing with tail -f /dev/kmesg in the background and without that= /dev/kmesg loses the start of output up to some random moment where it sho= ws it. Could the problem be that i have too many outputs? ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T31db04ef89737d25-Ma028d= d0e821a763795e71625 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --16964183031.74F7.58412 Date: Wed, 4 Oct 2023 07:18:23 -0400 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

I added some logs in /sys/src/9/port/proc.c fo= r some tests of the scheduler, I want to see at what moments do real time p= rocesses take the cpu. I did that with simple prints with the intention of = doing cat /dev/kmesg > someFile because all the prints are stored there.=

The problem is that the flow of ou= tput just randomly stops at times and continues(only once by test) and i lo= se some of the output which is really important. Any ideas why?
=

Also I was doing with tail -f /dev/kmesg in the= background and without that /dev/kmesg loses the start of output up to som= e random moment where it shows it. Could the problem be that i have too man= y outputs?

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Wed, 4 Oct 2023 11:23:35 -0400 (EDT) (envelope-from ori@eigenstate.org) Received: from abbatoir (pool-108-6-24-2.nycmny.fios.verizon.net [108.6.24.2]) by mimir.eigenstate.org (OpenSMTPD) with ESMTPSA id bb9d24e2 (TLSv1.2:ECDHE-RSA-AES256-SHA:256:NO) for <9fans@9fans.net>; Wed, 4 Oct 2023 08:23:33 -0700 (PDT) Message-ID: <8F4E7F800F7C886A9633672C3DC68E95@eigenstate.org> To: 9fans@9fans.net Subject: Re: [9fans] Problem with outputing from kernel Date: Wed, 04 Oct 2023 11:23:32 -0400 From: ori@eigenstate.org In-Reply-To: <16964183030.24ffCe99.58412@composer.9fans.topicbox.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 0066465e-62ca-11ee-9876-f2257bb33ddb Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMzFkYjA0ZWY4OTczN2QyNS1NNWY5OWFjZWU1ODEzYjc5OWNlODZh?= =?UTF-8?B?ZmU2Pg==?= 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:M5f99acee5813b799ce86afe6:1:sPBxqUADNi0pIgaO5GpKkxN8bYjWPIIV3lbYxDwZcv0 Quoth dusan3sic@gmail.com: > I added some logs in /sys/src/9/port/proc.c for some tests of the schedul= er, I want to see at what moments do real time processes take the cpu. I di= d that with simple prints with the intention of doing cat /dev/kmesg > some= File because all the prints are stored there.=C2=A0=20 >=20 > The problem is that the flow of output just randomly stops at times and c= ontinues(only once by test) and i lose some of the output=C2=A0 which is re= ally important. Any ideas why? are you printing from an interrupt context? use iprint for that. also, are you looking for trace(1)? we ship with a tool for showing scheduler decisions. >=20 > Also I was doing with tail -f /dev/kmesg in the background and without th= at /dev/kmesg loses the start of output up to some random moment where it s= hows it. Could the problem be that i have too many outputs? that's what tail *does*. It shows the tail (by default, last 10 lines) of t= he file. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T31db04ef89737d25-M5f99a= cee5813b799ce86afe6 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription 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=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 2626 invoked from network); 4 Oct 2023 17:23:33 -0000 Received: from tb-ob0.topicbox.com (64.147.108.117) by inbox.vuxu.org with ESMTPUTF8; 4 Oct 2023 17:23:33 -0000 Received: from tb-mx1.topicbox.com (tb-mx1.nyi.icgroup.com [10.90.30.61]) by tb-ob0.topicbox.com (Postfix) with ESMTP id 38C77343E2 for ; Wed, 4 Oct 2023 13:23:32 -0400 (EDT) (envelope-from bounce.mM0e9be2ef226b9b14bee99193.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx1.topicbox.com (Postfix, from userid 1132) id 9496F2631312; 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identity=mailfrom; envelope-from="khm@sciops.net"; helo=wopr.sciops.net; client-ip=216.126.196.60 Received: from wopr.sciops.net (wopr.sciops.net [216.126.196.60]) by tb-mx0.topicbox.com (Postfix) with ESMTP for <9fans@9fans.net>; Wed, 4 Oct 2023 13:23:21 -0400 (EDT) (envelope-from khm@sciops.net) Received: from localhost (wopr.sciops.net [local]) by wopr.sciops.net (OpenSMTPD) with ESMTPA id 9c9503ea for <9fans@9fans.net>; Wed, 4 Oct 2023 09:56:15 -0700 (PDT) Date: Wed, 4 Oct 2023 09:56:15 -0700 To: 9fans <9fans@9fans.net> Subject: Re: [9fans] Problem with outputing from kernel Message-ID: Mail-Followup-To: 9fans <9fans@9fans.net> References: <16964183030.24ffCe99.58412@composer.9fans.topicbox.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline In-Reply-To: <16964183030.24ffCe99.58412@composer.9fans.topicbox.com> Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: ba4ef088-62da-11ee-9d30-5aaf018c7b06 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMzFkYjA0ZWY4OTczN2QyNS1NMGU5YmUyZWYyMjZiOWIxNGJlZTk5?= =?UTF-8?B?MTkzPg==?= 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 From: "Kurt H Maier via 9fans" <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M0e9be2ef226b9b14bee99193:1:6fmwR2OwTp7OG-I4mxbMUs7shnwNd2HNqkGUG4XHhS4 On Wed, Oct 04, 2023 at 07:18:23AM -0400, dusan3sic@gmail.com wrote: > Also I was doing with tail -f /dev/kmesg in the background and without th= at /dev/kmesg loses the start of output up to some random moment where it s= hows it. Could the problem be that i have too many outputs? try tail +0f /dev/kmesg ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T31db04ef89737d25-M0e9be= 2ef226b9b14bee99193 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription 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=0.0 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FORGED_GMAIL_RCVD,FREEMAIL_FROM,HTML_MESSAGE, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 23196 invoked from network); 9 Oct 2023 18:37:19 -0000 Received: from tb-ob0.topicbox.com (64.147.108.117) by inbox.vuxu.org with ESMTPUTF8; 9 Oct 2023 18:37:19 -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 3FEF82E757 for ; Mon, 9 Oct 2023 14:37:17 -0400 (EDT) (envelope-from bounce.mM6bbf54d0c44e0b1751ec3632.r522be890-2105-11eb-b15e-8d699134e1fa@9fans.bounce.topicbox.com) Received: by tb-mx0.topicbox.com (Postfix, from userid 1132) id 366534504CF; Mon, 9 Oct 2023 14:37:17 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h=from:to :subject:message-id:in-reply-to:references:date:mime-version :content-type:content-transfer-encoding:list-help:list-id :list-post:list-subscribe:reply-to:list-unsubscribe; s=dkim-1; t=1696876637; x=1696963037; bh=Y96ANfKzgMyYxLWEuDpfZlbU3kIaCN6n KugAdIOFcrY=; b=rIx/N1boMqW3JOv12akrhtLV0PZKUjVMHHr56zHiTuMnZCl5 xCR/SEeOqo881jnBELbiFzh7WYl4wAFSBTS+u316wQaYAs/4EA79v6pd3lOI4jTv MrmBJjAOUw5H9SzEVbXAjNABnEnOZ/xFLK1hB6tHXe4Ej08r7r7TPZLlDdg= From: dusan3sic@gmail.com To: 9fans <9fans@9fans.net> Subject: Re: [9fans] Problem with outputing from kernel Message-Id: <16968766270.8BBf.444643@composer.9fans.topicbox.com> In-Reply-To: References: <16964183030.24ffCe99.58412@composer.9fans.topicbox.com> Date: Mon, 9 Oct 2023 14:37:07 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=16968766271.e4Bfa.444643 Content-Transfer-Encoding: 7bit Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: d9e5d3ca-66d2-11ee-bf02-e19d232d11b0 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UMzFkYjA0ZWY4OTczN2QyNS1NNmJiZjU0ZDBjNDRlMGIxNzUxZWMz?= =?UTF-8?B?NjMyPg==?= 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:M6bbf54d0c44e0b1751ec3632:1:QhkRaL51HKuf1-YNFowghXYImOjJhO1R-UZLGFCgNEw --16968766271.e4Bfa.444643 Date: Mon, 9 Oct 2023 14:37:07 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable https://9p.io/wiki/plan9/avoiding_screen_pollution_from_kernel_messages/ind= ex.html this helped ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T31db04ef89737d25-M6bbf5= 4d0c44e0b1751ec3632 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --16968766271.e4Bfa.444643 Date: Mon, 9 Oct 2023 14:37:07 -0400 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

https://9p.io/wiki/plan9/a= voiding_screen_pollution_from_kernel_messages/index.html
this help= ed

= --16968766271.e4Bfa.444643--