On 12/08/2014 12:23 PM, Darac Marjal wrote: > On Mon, Dec 08, 2014 at 07:26:41AM +0000, Shio Gai Quek wrote: >> Dear All >> >> My name is Quek from Malaysia. I am now downloading Debian 7.7.0 >> amd64. >> >> Right now my workstation uses w****** 7 ultimate 64bit, with >> one(1) CPU (Core i7-4770K), and 32GB of RAM. >> >> I need your help! Before I decide to install it for my upcoming >> "compute-server" and possibly even my current workstation, I need >> to confirm with ALL the following: >> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- >> >> 1. According to: https://www.debian.org/ports/amd64/ >> It appears to me that Debian 7.7.0 amd64 supports up to 64TB of >> RAM, which is much more than even the 192GB limit for w******. >> -------- Kindly confirm. > > This appears to be the case. At the moment, amd64 processors only > have 48-bit address busses. 2^46 is ~256TiB. However, due to the > memory architecture, 64TiB is the limit of physical RAM supported > by linux (you can add to that a further ~64TiB of swap, as the > kernel can address 128TiB of virtual memory). > >> >> 2. According to: >> https://www.gnu.org/philosophy/ubuntu-spyware.html It appears to >> me that some GNU OS has this annoying problem, how about Debian >> 7.7.0 amd64? > > Ubuntu (or rather, Canonical) are a commercial entity. It is in > their interests to make money from their users. Debian is a loose > organisation committed to the "Social Contract" and the DFSG > (https://www.debian.org/social_contract) which, among other things, > states "Our priorities are our users and free software". > >> >> 3. According to: https://www.gnu.org/distros/common-distros.html >> >> It appears to me than some of the features in the >> firmware/repository are not free. Therefore, during installation >> of Debian 7.7.0 amd64, a. "the installer in some cases recommends >> these nonfree firmware files for the peripherals on the >> machine." Will I be given the choice not to install those >> nonfree features? > > That's true. There is a screen in the installer where you are asked > if you'd like to include non-free software. Note, however, that > Debian is sometimes viewed as "not free enough" in some quarters; > you can install free software which requires non-free services to > operate, you can install free software which depends on non-free > software (for example, there are "downloader" packages whose sole > purpose is to install non-free software such as Adobe Flash). You > are, of course, free to *not* install these and, in many cases, > functional alternatives are available. > >> b. If I do so, i. Will it affect the performance of the OS? > > It depends on the hardware. Some graphics cards will not fully > accelerate without proprietary firmware. Some network cards, too, > have issues when running without firmware. > >> >> ii. Will the maximum supporting RAM remains 64TB? > > Yes. > >> >> iii. Will I still benefit from ALL advantages amd64 offers, as >> stated in "A complete 64bit userland" of site >> https://www.debian.org/ports/amd64/? > > Yes. All these points are features of the CPU which won't need > non-free firmware to work. > >> >> 4. According to >> http://cdimage.debian.org/debian-cd/7.7.0/amd64/iso-dvd/ , There >> are 5 isos (which I am downloading) "Debian-7.7.0-amd64-DVD-1.iso >> 2014-10-18 15:39 3.7G " "Debian-7.7.0-amd64-DVD-2.iso >> 2014-10-18 15:39 4.4G " "Debian-7.7.0-amd64-DVD-3.iso >> 2014-10-18 15:39 4.4G " "Debian-update-7.7.0-amd64-DVD-1.iso >> 2014-10-19 02:16 4.2G " "Debian-update-7.7.0-amd64-DVD-2.iso >> 2014-10-19 02:19 1.6G " Which of them is/are mandatory for >> installation of Debian 7.7.0 amd64? (Note: Please do NOT direct >> me to the net-installer! I need a robust DVD file than enables me >> to install it offline! Moreover, this compute-server may not be >> connected to the internet) > > DVD-1 will be enough to install a desktop system. The packages on > the DVDs are sorted by popularity, so DVD-1 should give you all you > need in most cases, DVD-2 may well be more useful to you for > installing your compute-server tasks. If in doubt, though, take a > look at the list files > (http://cdimage.debian.org/debian-cd/7.7.0/amd64/list-dvd/) for > contents of each disc. The update DVDs should not be needed, as > they are for updating from Debian 7.6 to Debian 7.7. > >> >> 5. Some Server OS (such as w****** server standard), supports >> only few (e.g. less than 4) CPUs. Some others (such as w****** >> server datacenter), supports "infinite" CPUs. So how about Debian >> 7.7.0 amd64? > > I believe Debian limits this to 8 with a default kernel. However, > you can recompile the kernel to raise the limit to 4096 (or 8192 > with a newer kernel). >
Is not the Debian 7 kernel (3.2.x) CPU limit up to 512 CPUs/cores ? Kind regards Georgi -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: https://lists.debian.org/[email protected]
