On Sat, Sep 28, 2013 at 4:47 PM, Graham Whaley <[email protected]> wrote: > Thanks Steve, David > > > On 28 September 2013 03:04, David Kuehling <[email protected]> wrote: >> >> > I've wondered if SMP Loongson systems are anywhere to be found: >> > http://bbs.lemote.com/viewthread.php?tid=43118 >> >> There seem to be Loongson-3A motherboards available, according to: >> >> >> https://groups.google.com/forum/#!searchin/loongson-dev/loongson$20mini-itx/loongson-dev/twzd5TBz_1k/U6MXpHrEbKAJ >> > 3A is available, in the laptops at least (there is one sat on my desk), but > the rack mount or mini-PC would be far nicer options. > I've started enquiring already after the reality of the 3A non-laptop > solutions. Let me chase some internal avenues as well. loongson said that there are several vendors of servers, such as sugon: http://www.sugon.com/ and powerleader: http://www.powerleader.com.cn/cn/index.aspx > >> > But I don't see Loongson 3A being an option until at the very least >> > jessie kernels support it and are stable with all cores in use. This >> > is just my opinion though and I can't speak for DSA. >> >> I don't see why the kernel being available with Debian should be >> important WRT porterboxes. Stability: didn't know that the 3A have >> stability problems. >> > If this turns out to be an issue then we'll see if we can work on that... There is a radiating problem which may make the 3A laptop down, while when put it in a data center with good air condition, they work well with months uptime to build the whole debian archive. > >> >> > On mipsel at least, I recall that libreoffice, openjdk-7, webkit >> > seemed to have some difficulty building. Each source package is built >> > on a single machine only, and the current machines are limited to <= 1 >> > GiB RAM I think so I expect heavy swapping takes place. >> >> I wonder whether it's <= or < 1 GB? Do the 1 GB machines really have >> swapping problems? More than 2 GB userspace virtual memory per process >> aren't (currently) possible on mips32 AFAIR. If some packages hit that >> limit during compilation, we're doomed. >> > That is an interesting observation... there are mips64 boxes with much more > RAM available, and we should be able to build mips32 binaries on the mips64 > systems - but, technically, I guess that is still a cross-compile :-/ > >> >> >> [..] >> > Maybe the existing boxes were not affected, but it was a concern about >> > acquiring newer Loongson 2F hardware? >> >> Just a single data point: I'm running a Fuloong 6004 with 1GB RAM >> (upgraded) and 750 GB disk (also upgraded) 24/7 and don't experience >> more than about 1 deadlock/year. This system is quite busy although I >> assume a build server will take much more load. The system currently >> runs Debian Squeeze with a self-compiled kernel, though the kernel from >> backports should perform comparably. >> > > I intend to get the 3A laptop (quad-core, 2Gbytes RAM I think) run up and > checked out asap. It runs Debian by default, but I think it is running > Squeeze and an oldish kernel - so we'll try wheezy and a kernel update and > see how it goes for a start. My 3A laptop is running squeeze with a 3.6 kernel. I build sid in a mips64el chroot by sbuild. I tried to upgrade this system to wheezy, but it failed to start. DMA is also failed to be enabled. > >> cheers, >> >> David >> -- >> GnuPG public key: http://dvdkhlng.users.sourceforge.net/dk2.gpg >> Fingerprint: B63B 6AF2 4EEB F033 46F7 7F1D 935E 6F08 E457 205F >> > thanks guys. I'm drawing up a table of 32/64bit big/little endian > larger/smaller-than-1Gbyte RAM systems so I can see the options we have. > > Oh, note, as well as Cavium, Broadcom and Loongson, Ingenic have their > JZ47xx series that may also fit for 'small/cheap mipsel' boxes - one of my > guys is building distro packages on a set of Android tablets right now. Not > the solution for the big buildd and porter boxes, but another cheap > available one to fling in the pot. > > Graham
-- YunQiang Su -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/CAKcpw6WiLuhvdRd0fJF3y0xQQR7SOAAzq0f6kZaQTLZtsY4=x...@mail.gmail.com
