Re: Per Jail Memory Limits
Tom Judge wrote: So I have worked up some thing usable fore us based on the 7.0 code from the wiki. This patch is for 7.1 in implements both soft and hard memory limits. Details are here: http://www.tomjudge.com/index.php/FreeBSD/Jails/MemoryLimits Changes that add supporting infrastructure for cpu limiting are in the patch but changes to the schedulers have not been included. If you need the scheduling support you will need to patch sched_4bsd with the code from the original patch set here: http://lists.freebsd.org/pipermail/freebsd-jail/2008-June/000333.html Hope this is useful for some people. I added links to this thread and to your patch into wiki page http://wiki.freebsd.org/Jails. I hope it will help people to find your work. Do you plan to make it for 7.2 and other future releases? Miroslav Lachman ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to freebsd-jail-unsubscr...@freebsd.org
Re: Per Jail Memory Limits
Miroslav Lachman wrote: Tom Judge wrote: So I have worked up some thing usable fore us based on the 7.0 code from the wiki. This patch is for 7.1 in implements both soft and hard memory limits. Details are here: http://www.tomjudge.com/index.php/FreeBSD/Jails/MemoryLimits Changes that add supporting infrastructure for cpu limiting are in the patch but changes to the schedulers have not been included. If you need the scheduling support you will need to patch sched_4bsd with the code from the original patch set here: http://lists.freebsd.org/pipermail/freebsd-jail/2008-June/000333.html Hope this is useful for some people. I added links to this thread and to your patch into wiki page http://wiki.freebsd.org/Jails. I hope it will help people to find your work. Do you plan to make it for 7.2 and other future releases? Miroslav Lachman ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to freebsd-jail-unsubscr...@freebsd.org It is good that people work in this direction! At present there are some patches, however any of them is not finished. I suggest to discuss in details a problem. The most important questions. 1. It is necessary to limit what resources? 2. How resources should be limited? Soft and hard limits. 3. How to count memory occupied with group of processes? 4. How to limit memory use? Whether correctly to kill processes? 5. How to limit use of processor time at absence in ULE separate turns of performance for jails? 6. Whether limits should be inherited at creation jails? etc. -- Menshikov Konstantin ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to freebsd-jail-unsubscr...@freebsd.org
Re: Per Jail Memory Limits
Miroslav Lachman wrote: Tom Judge wrote: So I have worked up some thing usable fore us based on the 7.0 code from the wiki. This patch is for 7.1 in implements both soft and hard memory limits. Details are here: http://www.tomjudge.com/index.php/FreeBSD/Jails/MemoryLimits Changes that add supporting infrastructure for cpu limiting are in the patch but changes to the schedulers have not been included. If you need the scheduling support you will need to patch sched_4bsd with the code from the original patch set here: http://lists.freebsd.org/pipermail/freebsd-jail/2008-June/000333.html Hope this is useful for some people. I added links to this thread and to your patch into wiki page http://wiki.freebsd.org/Jails. I hope it will help people to find your work. Do you plan to make it for 7.2 and other future releases? Thanks for adding it to the wiki. It should be simple to apply to 7.2, I can try to knock out a patch in my spare time for this. However at this time I have no plans to take this any further, it seems plenty of people are working on this problem. Maybe one day there will be an in tree solution. Tom ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to freebsd-jail-unsubscr...@freebsd.org
Re: Per Jail Memory Limits
On Mon, 5 Oct 2009, Julian Elischer wrote: Tom Judge wrote: Adam Vande More wrote: On Mon, Oct 5, 2009 at 12:47 PM, Tom Judge t...@tomjudge.com mailto:t...@tomjudge.com wrote: Julian Elischer wrote: Tom Judge wrote: Hi, Does anyone know of a patch that will add per jail memory limits so that a jail can't swallow the resources of the entire box? Thanks Tom not yet.. I started to port this to 7.1 today: http://wiki.freebsd.org/JailResourceLimits What are the peoples opinions on this patch? Tom If you're soliciting opinions if this will be used and is needed, I would love to see this functionality. This is the main reason I've had to chose XEN over jails. If you need some help testing, let me know. -- Adam Vande More Hi Adam, I have a patch against 7.1 here: http://svn.tomjudge.com/freebsd/patches/jail-resource-limits/jail-limits.patch probably the person who should work with this in -current is james (CC'd) Probably the person who should be contacted is trasz who worked on hierachical resource limit per .., jail in p4. Though this is slightly different. I think it's ok if people need those things to update the pathes but I doubt any will probably ever make it into FreeBSD as those things are kind of contrary to the V_ plans. BTW, I think the patch referenced is not the latest I had seen and I thought that we also had one for 7.x or even for 8 already floating around. Maybe some investigation on list archives etc. might be helpful before starting to hack things. Maybe also check the links on http://wiki.freebsd.org/Jails I will try to bring the patch up to current when I get a chance but I have no real need to do this as we use 7.1 in production. Notes: * CPU limiting is not support is not supported unless you use shecd_4bsd. * I have not tested this on any system yet, just compile tested, I am putting it though its paces right now. Tom -- Bjoern A. Zeeb It will not break if you know what you are doing. ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to freebsd-jail-unsubscr...@freebsd.org
