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ralul
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Post subject: linux-3.4 better with bfs - a little
 Posted: 14.06.2012, 00:30
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Joined: 12.09.2010
Posts: 1500
Location: Hamburg
Status: Offline
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I am just testing the new recently bug fixed BrainFuckScheduler:
http://ck-hack.blogspot.de/2012/06/bfs-0423-34-ck2.html
This runs a little better than mainline unpatched Linux-3.4 kernels. In the past patching linux-3.2 with BFS was clearly a lot better for the desktop. Towo did this for siduction.
But this has narrowed now, because mainline CFScheduler has been improved a lot recently. But still I feel "a little" better using BFS patches for my Desktop system! Though I would not use it if my machine ran many server tasks, because I know throughput could be "a little" less... |
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ralul
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Post subject: Chen developes RIFS
Posted: 18.06.2012, 19:43
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Joined: 12.09.2010
Posts: 1500
Location: Hamburg
Status: Offline
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If this benchmark is truly measuring differences, this shines! Perhaps we will end up having a better scheduler in mainline Linux! The author, Chen, claims to keep his coding in the frames the modular design of mainline CFS provides (edit: looking at his source this doesnt seem to be true).
My try to compile fails missing an include stats.h  |
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ralul
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Post subject: Chen developes RIFS
Posted: 19.06.2012, 18:05
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Joined: 12.09.2010
Posts: 1500
Location: Hamburg
Status: Offline
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I testet Linux-3.4.3-with-RIFSv1 and had 3 audio interrupts watching an avi file. This was medium load: a parallel kernle compile and another interruption when ktorrent in action. Perhaps above ultra latency statistic of RIFS is significant with high load having 8 cpus in action.
But I only have core2 and medium load.
I am back using BFS-423 as my scheduler... |
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ralul
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Post subject: Chen developes RIFS
Posted: 21.06.2012, 12:36
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Joined: 12.09.2010
Posts: 1500
Location: Hamburg
Status: Offline
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I am just running a new version of the RIFS Scheduler:
http://rifs-scheduler.googlecode.com/fi ... ernel3.4.x
This is a version running smoothly for my system!
As Chen said, it is not punishing sleepy threads as much as before.
I think with his statistics Chen wants to show some developer specifics. LogN efficient algo to create or insert new processes or something like that. |
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dibl
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Post subject: RE: Chen developes RIFS
Posted: 21.06.2012, 14:51
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Moderator
Joined: 22.12.2011
Posts: 558
Location: Dayton, Ohio, USA
Status: Offline
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| @ralul thanks for doing this. I for one am very interested to learn whether this will give a more responsive desktop experience. |
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jaegermeister
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Post subject: RE: Chen developes RIFS
Posted: 23.06.2012, 13:04
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Joined: 18.03.2012
Posts: 36
Location: Cyberspace
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This is a project which was already suggested at sidux times, really really interesting. A desktop-oriented system like siduction ought to have a desktop-oriented kernel, way more than vanilla debian, which has instead to remain a one-good4all system.
Is the patched kernel you're running already long in production? Any glitches? If it runs smooth it could be a great candidate for inclusion in next kernels... |
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ralul
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Post subject: RE: Chen developes RIFS
Posted: 23.06.2012, 13:54
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Joined: 12.09.2010
Posts: 1500
Location: Hamburg
Status: Offline
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jaegermeister
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Post subject: RE: Chen developes RIFS
Posted: 23.06.2012, 14:44
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Joined: 18.03.2012
Posts: 36
Location: Cyberspace
Status: Offline
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It was due to Greece's temporary 1-1  |
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