Thu Nov 21 23:36:35 2024 EVENTS FREE SOFTWARE INSTITUTE POLITICS JOBS MEMBERS' CORNER MAILING LIST NYLXS Members have a lot to say and share but we don't keep many secrets. Join the Hangout Mailing List and say your peice. DATE 2015-03-01 LEARN 2024-11-21 | 2024-10-21 | 2024-09-21 | 2024-08-21 | 2024-07-21 | 2024-06-21 | 2024-05-21 | 2024-04-21 | 2024-03-21 | 2024-02-21 | 2024-01-21 | 2023-12-21 | 2023-11-21 | 2023-10-21 | 2023-09-21 | 2023-08-21 | 2023-07-21 | 2023-06-21 | 2023-05-21 | 2023-04-21 | 2023-03-21 | 2023-02-21 | 2023-01-21 | 2022-12-21 | 2022-11-21 | 2022-10-21 | 2022-09-21 | 2022-08-21 | 2022-07-21 | 2022-06-21 | 2022-05-21 | 2022-04-21 | 2022-03-21 | 2022-02-21 | 2022-01-21 | 2021-12-21 | 2021-11-21 | 2021-10-21 | 2021-09-21 | 2021-08-21 | 2021-07-21 | 2021-06-21 | 2021-05-21 | 2021-04-21 | 2021-03-21 | 2021-02-21 | 2021-01-21 | 2020-12-21 | 2020-11-21 | 2020-10-21 | 2020-09-21 | 2020-08-21 | 2020-07-21 | 2020-06-21 | 2020-05-21 | 2020-04-21 | 2020-03-21 | 2020-02-21 | 2020-01-21 | 2019-12-21 | 2019-11-21 | 2019-10-21 | 2019-09-21 | 2019-08-21 | 2019-07-21 | 2019-06-21 | 2019-05-21 | 2019-04-21 | 2019-03-21 | 2019-02-21 | 2019-01-21 | 2018-12-21 | 2018-11-21 | 2018-10-21 | 2018-09-21 | 2018-08-21 | 2018-07-21 | 2018-06-21 | 2018-05-21 | 2018-04-21 | 2018-03-21 | 2018-02-21 | 2018-01-21 | 2017-12-21 | 2017-11-21 | 2017-10-21 | 2017-09-21 | 2017-08-21 | 2017-07-21 | 2017-06-21 | 2017-05-21 | 2017-04-21 | 2017-03-21 | 2017-02-21 | 2017-01-21 | 2016-12-21 | 2016-11-21 | 2016-10-21 | 2016-09-21 | 2016-08-21 | 2016-07-21 | 2016-06-21 | 2016-05-21 | 2016-04-21 | 2016-03-21 | 2016-02-21 | 2016-01-21 | 2015-12-21 | 2015-11-21 | 2015-10-21 | 2015-09-21 | 2015-08-21 | 2015-07-21 | 2015-06-21 | 2015-05-21 | 2015-04-21 | 2015-03-21 | 2015-02-21 | 2015-01-21 | 2014-12-21 | 2014-11-21 | 2014-10-21 Key: Value: Key: Value: MESSAGE DATE 2015-03-22 FROM mrbrklyn@panix.com SUBJECT Subject: [LIU Comp Sci] [xerofoify@gmail.com: Re: Kernel thread scheduling] From owner-learn-outgoing-at-mrbrklyn.com Sun Mar 22 20:01:17 2015 Return-Path: X-Original-To: archive-at-mrbrklyn.com Delivered-To: archive-at-mrbrklyn.com Received: by mrbrklyn.com (Postfix) id 467591612EE; Sun, 22 Mar 2015 20:01:17 -0400 (EDT) Delivered-To: learn-outgoing-at-mrbrklyn.com Received: by mrbrklyn.com (Postfix, from userid 28) id 344671612F0; Sun, 22 Mar 2015 20:01:17 -0400 (EDT) Delivered-To: learn-at-nylxs.com Received: by mrbrklyn.com (Postfix, from userid 1000) id BCB171612EF; Sun, 22 Mar 2015 20:01:16 -0400 (EDT) Date: Sun, 22 Mar 2015 20:01:16 -0400 From: mrbrklyn-at-panix.com To: learn-at-nylxs.com Subject: [LIU Comp Sci] [xerofoify-at-gmail.com: Re: Kernel thread scheduling] Message-ID: <20150323000116.GA18290-at-www.mrbrklyn.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: owner-learn-at-mrbrklyn.com Precedence: bulk Reply-To: learn-at-mrbrklyn.com ----- Forwarded message from nick ----- Date: Sun, 22 Mar 2015 19:30:34 -0400 From: nick To: Vincenzo Scotti , Anand Moon Cc: Jeff Haran , "kernelnewbies-at-kernelnewbies.org" Subject: Re: Kernel thread scheduling User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 On 2015-03-22 07:14 PM, Vincenzo Scotti wrote: > Thank you for the example. > > I understand what are the scheduling mechanics depending on task->state. > But suppose another situation. > Let's say I change current state to TASK_INTERRUPTIBLE. If I start now some long > operation, then shouldn't the scheduler kick in as soon as he can and put my thread > asleep? Or should I call necessarily schedule()? And if so, why? > > > Greetings Vincenzo. I would recommend reading Chapters 3 and 4 of Linux Kernel Development by Robert Love as when I was learning the scheduler and process management for the kernel,I found these chapters to be very useful.Further more for user space you are correct to my knowledge schedule is called for internal tasks that are taking too long in kernel land or to reschedule to another task,not for user space based tasks are TASK_INTERRUPTIBLE works fine there. Hope this Helps, Nick _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies-at-kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > _______________________________________________ Kernelnewbies mailing list Kernelnewbies-at-kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ----- End forwarded message ----- -- So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world - RI Safir 1998 http://www.mrbrklyn.com DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 http://www.nylxs.com - Leadership Development in Free Software http://www2.mrbrklyn.com/resources - Unpublished Archive http://www.coinhangout.com - coins! http://www.brooklyn-living.com Being so tracked is for FARM ANIMALS and and extermination camps, but incompatible with living as a free human being. -RI Safir 2013 2015-03-01 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: Re: Linked List Test Question 2015-03-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: fork problem] 2015-03-03 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: fork problem 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Ruben Safir <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kanpsack problemi 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Mid term in Allorithms 2015-03-05 Kamran <kamran.mirzayev-at-my.liu.edu> Re: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow 2015-03-05 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow 2015-03-05 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Forks - Operating systems class 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] KDE Mentoring - 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] networking class 2015-03-07 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems class submition 2015-03-08 From: "keisha.sylvester" <keisha.sylvester-at-my.liu.edu> RE: [LIU Comp Sci] Operating Systems Supplement Text 2015-03-08 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Operating Systems Supplement Text 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating systems HW 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems Supplement Text 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Operating systems HW 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Operating Systems class submition 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] February Journal almost completed 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Operating Systems Chapter 3 HW complete 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: os hw] 2015-03-17 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: NYC local: UNIGROUP 19-MAR-2015 (Thu): Penguin Computing presents 2015-03-19 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] LIU Center for Entrepreneurship + Innovation 2015-03-20 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Optimum 2015-03-20 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: 2nd New York City Perl Hackathon: hold the 2015-03-22 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Kernel thread scheduling 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: New York City Perl Hackathon 2015: Registration 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [vinc94-at-gmail.com: Re: Kernel thread scheduling] 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [xerofoify-at-gmail.com: Re: Kernel thread scheduling] 2015-03-23 Keisha Sylvester <keisha.sylvester-at-my.liu.edu> Re: [LIU Comp Sci] Meeting Announcement II 2015-03-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Meeting Announcement II 2015-03-23 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [gabor-at-szabgab.com: [Perlweekly] #191 - Hackathon after Hackathon] 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1 2015-03-24 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] GNU/Linux 1 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1 2015-03-25 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] GNU/Linux 1 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] decent threading outline that fills in where our notes let off 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] I love this HW problem 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Java Crimes 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] jobs jobs 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threaded Programming example 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threads and Speed 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Cpt 4 HW from pr 13-18 2015-03-26 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: [NYLXS - HANGOUT] GNU/Linux 1 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kernel Learning Resource - #1 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] AVl Trees 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Cpt 4 HW Programming Project 4-20 (and 3-20) 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Jobs 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] JOUNAL MEETING AT 10AM TOMORROW 2015-03-29 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: usage of dma_common_mmap 2015-03-30 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] HW 4.18 Problem NYLXS are Do'ers and the first step of Doing is Joining! Join NYLXS and make a difference in your community today!