devel March 2011

devel@lists.fedoraproject.org

247 participants
259 discussions

[ANNOUNCE] bfq disk I/O scheduler
by Paolo Valente 18 Apr '11

18 Apr '11

Hi, I have been working for a few years (with Fabio Checconi) on a disk scheduler providing definitely lower latencies than cfq, as well as a higher throughput with most of the test workloads we used (or the same throughput as cfq with the other workloads). We named this scheduler bfq (budget fair queueing). I hope this is the right list for announcing this work. One of the things we measured in our tests is the cold-cache execution time of a command as, e.g., "bash -c exit", "xterm /bin/true" or "konsole -e /bin/true", while the disk was also accessed by different combinations of sequential, or random, readers and/or writers. Depending on which of these background workloads was used, these execution times were five to nine times lower with bfq under 2.6.32. Under 2.6.35 they were instead from six to fourteen times lower. The highest price paid for these lower latencies was a 20% loss of aggregated disk throughput for konsole in case of background workloads made only of sequential requests (due to the fact that bfq of course privileges, more than cfq, the seeky IO needed to load konsole and its dependencies). In contrast, with shorter commands, as bash or xterm, bfq also provided up to 30% higher aggregated throughput. We saw from 15% to 30% higher aggregated throughput also in our only-aggregated-throughput tests. You can find in [1] all the details on our tests and on other nice features of bfq, such as the fact that it perfectly distributes the disk throughput as desired, independently of disk physical parameters like, e.g., ZBR. in [1] you can also find a detailed description of bfq and a short report on the maturity level of the code (TODO list), plus all the scripts used for the tests. The results I mentioned so far have been achieved with the last version of bfq, released about two months ago as patchsets for 2.6.33 or 2.6.34. From a few days a patchset for 2.6.35 is available too, as well as a backport to 2.6.32. The latter has been prepared by Mauro Andreolini, who also helped me a lot with debugging. All these patches can be found here [2]. Mauro also built a binary kernel package for current lucid, and hosted it into a PPA, which can be found here [3]. A few days after being released, this version of bfq has been introduced as the default disk scheduler in the Zen Kernel. It has been adopted as the default disk scheduler in Gentoo Linux too. I also recorded downloads from users with other distributions, as, e.g., Ubuntu and ArchLinux. As of now we received only positive feedbacks from the users. Paolo [1] http://algo.ing.unimo.it/people/paolo/disk_sched/ [2] http://algo.ing.unimo.it/people/paolo/disk_sched/sources.php [3] Ubuntu PPA: ppa:mauro-andreolini/ubuntu-kernel-bfq

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f15 libchamplain bump
by Brian Pepple 16 Apr '11

16 Apr '11

Hi, Just giving a heads up about an update to libchamplain to the latest stable version. The apps affected are: * empathy * claws-mail-plugins-geolocation * emerillon * meego-panel-status I'll be working on rebuilding this apps later today, unless the package owners themselves want to handle this. Thanks, /B -- Brian Pepple <bpepple(a)fedoraproject.org> https://fedoraproject.org/wiki/User:Bpepple gpg --keyserver pgp.mit.edu --recv-keys 810CC15E BD5E 6F9E 8688 E668 8F5B CBDE 326A E936 810C C15E

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Re: Non-responsive maintainer - Chris Ricker
by Jaroslav Skarvada 11 Apr '11

11 Apr '11

> > I have to second someone taking over rrdtool. I handed it off to > > Chris > > a while back, but have still done far more work on it since then > than > > he has, and I've not seen him touch an rrdtool bz in ages. :( > > > > (And no, I don't want maintainership back.) > > I am ready to take it (I already own it in RHEL). I think all steps in > non-responsive maintainer process have been fulfilled Please could any FESCo member approve the takeover of rrdtool (according to nonresponsive package maintainers policy)? Or should I open ticket for this? Thanks Jaroslav

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Proven testers for Lua update
by Tim Niemueller 08 Apr '11

08 Apr '11

Hi fellow Fedorans. I'd like to push a minor update of Lua, which incorporates a small bugfix patch, and some cosmetic fixes to the builds script. First testing by a proven tester has been done successfully, but I need more testing to be able to push it, please have a look, try it and comment: https://admin.fedoraproject.org/updates/lua-5.1.4-7.fc14 https://admin.fedoraproject.org/updates/lua-5.1.4-7.fc13 Thanks, Tim -- Tim Niemueller <tim(a)niemueller.de> www.niemueller.de ================================================================= Imagination is more important than knowledge. (Albert Einstein)

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Orphanings/dead packaging libnc-dap; octave releases and octave-forge future
by Orion Poplawski 07 Apr '11

07 Apr '11

I'm planning on dropping libnc-dap. It is no longer supported and functionality has moved into the netcdf 4 library. The only package currently requiring libnc-dap is: octave-forge-0:20090607-17.fc14.i686 Also, apparently octave is planning a 3.4 release this weekend which I would like to see get into F15. These two events I believe will drive the final stake into the heart of the octave-forge package at which point we will need to start packaging the components separately. Since this is how upstream distributes them anyway, I see no reason not to move in this direction in all possible haste. I will try to get back to my earlier efforts on creating a packaging template for octave packages as soon as I can. Any help would be greatly appreciated. - Orion

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Re: Testing zsh completion for fedpkg
by Ben Boeckel 07 Apr '11

07 Apr '11

Christopher Aillon <caillon(a)redhat.com> wrote: > I missed the first notice of this go by, but I use zsh so can play with > it in the next few days. Can you post the updates so I don't hit the > same bugs you did? Sure. Attached. The bugs were mainly with zsh conventions and getting the sed command for the branch selection corrected. --Ben

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libedit update needs karma
by Jerry James 05 Apr '11

05 Apr '11

Hi all, The latest libedit update is CRITPATH, so it needs some karma. The direct consumers of libedit, if my repoquery-fu is up to the task, are the following, with their maintainers listed first, followed by comaintainers: Io-language: limb asterisk: jcollie, fabbione, itamarjp ceph: josef, boodle, jdieter, steve, stingray, tremble, zaniyah chrony: mlichvar firebird (-class-common, -superserver): makowski ghc-editline: s4504kr kaya: s4504kr libedit: kdudka, jcollie, jjames libreadline-java: akurtakov link-grammar: uwog ntp: mlichvar, pertusus openssh: jfch2222, dwalsh, ellert, lkundrak, mgrepl, mitr, sgrubb, tmraz php (-cli): jorton, rdieter, remi, timj php-pecl-xdebug: remi, cdamian, hubbitus pure: salimma uim: tagoh, i18n-team I'm jjames, and kdudka has already provided karma. Will some of the rest of you please test the update and leave your feedback on the update page? https://admin.fedoraproject.org/updates/libedit-3.0-3.20110227cvs.fc15 Thank you very much, -- Jerry James http://www.jamezone.org/

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manually fixing IPs
by Jon Masters 05 Apr '11

05 Apr '11

Hello, So, back in the good old days, one could just type this: ifconfig eth0 some_temp_ip up Then it became necessary to: /etc/init.d/NetworkManager stop Then it became necessary to: systemctl disable NetworkManager.service Just to try to get the interface left alone. But when the link it's attached to drops, the settings are immediately being dropped and the interface unconfigured. So, what have I missed? What's the other thing that's trying to be all "helpful" but actually preventing me from running TFTP usefully? Sure, I could plug it into a switch and go all Windows 95 on this, but...I'd rather not. Thanks, Jon.

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What's up with thunderbird-lightning?
by Orion Poplawski 04 Apr '11

04 Apr '11

Could someone illuminate what is happening with thunderbird-lightning for F15? Looks like it was moved from the sunbird package to the thunderbird package, only to be dropped from that: * Wed Feb 9 2011 Christopher Aillon <caillon(a)redhat.com> - 3.1.7-6 - Drop the -lightning subpackage, it needs to be in its own SRPM I don't see a package up for review though. Thanks! -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion(a)cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com

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RFC : Fedora design suite comps patch
by Ankur Sinha 04 Apr '11

04 Apr '11

Hi folks, Could you please glance through this? I intend to commit it tomorrow. > http://ankursinha.fedorapeople.org/misc/comps-diff-design-suite.patch Thanks, Ankur

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devel March 2011