 |
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. I haven’t used Xen HVM until recently. When I was at Amazon and
hanging with the Xen provisioning folks, I recall complaints about the
performance of network drivers on HVM instances. I’ve recently
discovered that this was due to the use of the ioemu virtual interface
(vif) system. In paravirtualized environments, Xen vif devices are
more efficient because the guest kernel can talk to the hypervisor to
schedule I/O. In hardware virtualized environments, the hypervisor
emulates the back end of a common network driver and the guest uses it
as if it is the real thing.
The Xen team (or was it RedHat?) patched the 2.6.18 kernel such that
HVM guests got the best of both worlds. The guest ran in a HVM
environment, but also had a way of talking with the hypervisor by way
of the xen-vnif kernel driver
(kernel/drivers/xenpv_hvm/netfront/xen-vnif.ko).
I may not be looking in the right places, but I can’t seem to find
such a paravirtualized network driver for any kernels more recent than
2.6.18. This has recently become a bit of an issue, since karmic (and probably sid)
depends on udev 145, which depends on signalfd, and thus won’t run on
kernels before (something like) 2.6.25.
Unless I miss my guess (which is quite possible =]), this means one of
the following needs to happen:
- signalfd needs to be back-ported to the 2.6.18 xen kernel
- xen-vnif needs to be forward-ported to >= 2.6.25
Has this already happened? Am I missing something? Tags: debian, hardware, linux, virtualization, xen
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. Hey all!
I’m sorry I haven’t been very active with my packages recently. I all-of-a-sudden started grad school and have been swamped with studying. I also started a contract and have been busy trying to learn a new codebase while contributing something other than snark.
I promise I’ll get back to packaging IronRuby and IronPython on Mono for Debian as soon as things start settling down. Getting an A in the class is higher priority, though, sorry…
Don’t worry. I haven’t forgotten about you ;)
Cheers,
C.J.
PS, I am implementing a Perl library to exercise my understanding of the class. You can follow along at the search.cpan.org page for Lingua::HPSG or by cloning the git repo:
$ git clone git://karma.colliertech.org/colliertech/langparser Tags: c.j. insider, debian, free software, git, ironpython, ironruby, language, mono, perl, software
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. *whew* I did a bunch of things yesterday. We took our kindergärtner to her first Friday at her new school (and were about 10 minutes tardy. oops). We then took our toddler to a nearby playground with swings and slides and let her expend some energy. After she had been sufficiently exercised, we walked back home, stopping at a coffee shop on the way. The baristo (you call male baristas “baristos,” right? :) ) recognized my MC Frontalot shirt and asked whether I had caught him the previous weekend at PAX. Unfortunately, I have not attended PAX since 2006, but I *did* purchase the tee directly from The Front himself ;)
When we got home, I worked a bit on an English Language parser implementation and then went to the University of Washington to meet with Emily Bender about getting in to the Professional Master’s program in Computational Linguistics. It all looks good, and I even got the good news that the GRE is no longer required!
After the meeting, I headed home and poked at the parser for a little while longer. I then picked Scarlet up from after-school care and brought her home. I then hopped in the car and drove toward Bellevue to meet up with Monty while he’s in town. I over-estimated the amount of time traffic would steal on my way to Bellevue, and had an extra hour to blow. So I dropped by building 41 and shot the IronPython bull with Dino. It turns out he’s got an android phone, too. I told him it was possible to put a debian chroot on it and that he should even be able to ‘apt-get install ironpython’ to his phone soon ;) We talked briefly about the CodePlex Foundation and Sam Ramji’s departure from The Evil Empire. Dino seems skeptical about the project. I don’t have enough information to have much of an opinion. However, it sounds like some folks I trust are involved, so I’m hopeful.
I left MS just in time to make it to the wrong address at the specified time. My phone had just enough juice to call Monty to get the right address and then use the navigation system to find my way there. I wasn’t able to make reservations at the place we intended to go for dinner until 8:15, so we went to the Barnes & Noble for a bit. They only had one NLP book in stock and the examples are all in Python. I should learn that language one of these days… As we were leaving the Pacific Place, Monty mentioned to me that he is on the advisory board for the CodePlex Foundation, and that they have been responsive enough to his input that they changed the Mission statement, at his recommendation, just one day before the Foundation was publicized. He feels that this is a very good direction for Microsoft to be heading.
My brother Chris was kind enough to watch the kids while we went out to dinner. Quick note: he recently graduated from UW with a BA in Electrical Engineering and is looking for work using his acquired knowledge, in case anyone needs one of those ;)
We met up with my wife, Hannah and our friends, Mike & Cynthia at our place. Monty graciously avoided mentioning the terrible state in which our apartment has recently found itself. The kids were super cute and polite and said hi/bye.
Over dinner we discussed building an android app (Monty has one, too ;) ) to automate the process of creating bounties for apps and getting folks to implement them. We also talked about MySQL and MariaDB, of course. Hannah and I recalled my time working for MySQL, Inc. on the MaxDB project and some subtle cultural differences we noticed while traveling. It was interesting getting the inside scoop about the Sun acquisition and some of the recent goings-on in the MySQL/Sun/Oracle world. I wasn’t aware, for instance, that the EU is balking on the merger because of monopoly concerns. Tags: android, autotools, c.j. insider, dlr, family, free software, friends, frontalot, git, ironpython, language, mariadb, maxdb, microsoft, mono, mysql, politics, python, social networking, sun, telephony
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. It looks like the upload of the Iron* languages to Debian is imminent. We’ve gotten the debian/watch file downloading a tarball of the git tag we’ve chosen for this release. This was the last bit meebey needed in order to present it to the maintainer of ironpython in lenny. He has agreed to let the Debian CLI Libraries Team adopt ironpython under the conditions that our packaging doesn’t suck and that he remains in the uploaders list.
Now that we have a package suitable for review, we have now presented it for said review.
Let me take a moment to mention how excited I am to be involved in packaging for Debian one of the first pieces of DFSG-compliant software sponsored by Microsoft. This is a true community effort with great work done by a lot of hard-working contributors. I believe that Microsoft has put its money where its mouth is with this project.
I have spent a fair amount of time criticising Microsoft for its “embrace and extend” sort of monopolistic actions. Having the somewhat unique experience of being a Debian GNU/Linux early-adopter and growing up in Microsoft’s back yard has given me the opportunity to bring up the concerns that the Free Software community has with the development practices of the 800-pound gorilla. To my surprise, the blue badger engineers with whom I have spoken have been responsive and even proactive in addressing the issues that have made Microsoft so combative toward the F/OSS development community. I see this as a very important step toward reconciling some poignant differences in the community. Tags: cli, colliertech, debian, dlr, free software, git, ironpython, ironruby, journalism, linux, microsoft, mono, software
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. https://www.redhat.com/archives/fedora-legal-list/2009-August/msg00017.html
In addition, IronRuby/IronPython/DLR may make it in to FC 13, thanks to Brett. Tags: c#, debian, dlr, free software, ironpython, ironruby, linux, mono, software
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Originally published at The Pædantic Programmer. Please leave any comments there. The FLOSS Weekly folks (including my homie, Randal) just published this week’s interview. It is with Michael Foord, who I just met a couple weeks ago. He published a book about IronPython. He mentions Mono, the DLR and IronRuby, too ;) Tags: c#, cli, compiler, dlr, free software, friends, ironpython, ironruby, linux, microsoft, mono, perl, podcast, python, software
|
|
|
|
|
|
|
|
|
|
|
|
![[info]](http://l-stat.livejournal.com/img/userinfo.gif){kind=small}
cjcollier's journal
Previous
