Re: Question regarding swap partition when installing Linux Mint Debian.
Le 03/02/2014 12:50, Chen Wei a écrit : On Mon, Feb 03, 2014 at 02:38:16AM -0800, Rick Thomas wrote: For example, if you decide to put /tmp in a ramdisk, you may want to allocate a swap partition that's much larger than your RAM as backup in case somebody needs *lots* of space in /tmp. +1 for the /tmp example. My personal rule of thumb is, "Start with twice your RAM and adjust from there depending on experience." How about use a swapfile? Given the large RAM today, allocate dozens gigabytes of swap partition that rarely used seems a waste. Besides, it is easier to change the size of a swapfile than size of a swap partition. You can automate the management of a swap file with swapspace : Description : dynamic swap space manager Small, stable system add-on that continuously and automatically adapts available virtual memory space to your actual memory needs. Claims disk space for use as swap space when needed; frees it up for use by the filesystem when not needed. Site : http://pqxx.org/development/swapspace With 8 or even now 16GB of RAM, I reallly don't need swap. Most of the time. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/52ef9443.4040...@nuagelibre.org
Re: Question regarding swap partition when installing Linux Mint Debian.
On 03/02/14 23:48, Chen Wei wrote: > On Mon, Feb 03, 2014 at 11:03:19PM +1100, Scott Ferguson wrote: >> As long as the swap file is not sparse. >> > > Tried *fallocate* to create swapfile then swapon report error, something > like: > > swapon: /path2swapfile : swapon failed: Invalid argument > fallocate -l 512M /swapfile > Only figured it out several cups of tea and google-fu later that it was > indeed a sparse problem. Strangely enough the partition is newly created, > formated as xfs, and has over 300G free space on it. > dd is the solution. fallocate is faster. e.g.:- xfs_fsr followed by fallocate -l 1G /pathwswapfile (don't take that as gospel, I rarely use xfs). don't forget to chmod 600 Kind regards -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/52ef93a5.7030...@gmail.com
Re: Question regarding swap partition when installing Linux Mint Debian.
On Mon, Feb 03, 2014 at 11:03:19PM +1100, Scott Ferguson wrote: > As long as the swap file is not sparse. > Tried *fallocate* to create swapfile then swapon report error, something like: swapon: /path2swapfile : swapon failed: Invalid argument Only figured it out several cups of tea and google-fu later that it was indeed a sparse problem. Strangely enough the partition is newly created, formated as xfs, and has over 300G free space on it. dd is the solution. -- Chen Wei -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20140203124839.GP25217@localhost
Re: Question regarding swap partition when installing Linux Mint Debian.
On Mon, Feb 3, 2014 at 11:50 AM, Chen Wei wrote: > Besides, it > is easier to change the size of a swapfile than size of a swap > partition. How about with LVM? -- "On the internet, nobody knows you're a dog." -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CADqA9uZxdpa_=kp_CYKdfgbp1EzJ+VUV_i1npo0=Rs0O=+k...@mail.gmail.com
Re: Question regarding swap partition when installing Linux Mint Debian.
On 03/02/14 22:50, Chen Wei wrote: > On Mon, Feb 03, 2014 at 02:38:16AM -0800, Rick Thomas wrote: >> For example, if you decide to put /tmp in a ramdisk, you may want to >> allocate a swap partition that's much larger than your RAM as backup >> in case somebody needs *lots* of space in /tmp. > > +1 for the /tmp example. > >> My personal rule of thumb is, "Start with twice your RAM and adjust >> from there depending on experience." > > How about use a swapfile? Good idea. As long as the swap file is not sparse. Kind regards -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/52ef8587.9080...@gmail.com
Re: Question regarding swap partition when installing Linux Mint Debian.
On Mon, Feb 03, 2014 at 02:38:16AM -0800, Rick Thomas wrote: > For example, if you decide to put /tmp in a ramdisk, you may want to > allocate a swap partition that's much larger than your RAM as backup > in case somebody needs *lots* of space in /tmp. +1 for the /tmp example. > My personal rule of thumb is, "Start with twice your RAM and adjust > from there depending on experience." How about use a swapfile? Given the large RAM today, allocate dozens gigabytes of swap partition that rarely used seems a waste. Besides, it is easier to change the size of a swapfile than size of a swap partition. -- Chen Wei -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20140203115044.GN25217@localhost
Re: Question regarding swap partition when installing Linux Mint Debian.
On Mon, Feb 3, 2014 at 10:38 AM, Rick Thomas wrote: > There is logic for having at least as much swap as you have RAM (in other > words, a multiplier of 1.0) because, when the system panics, it may want to > make a copy of RAM to the swap space for later analysis. Or if the system is a laptop and you want to hibernate. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CADqA9uZQT+rSTedG=ea3e5covpjfg-yqbwwi+5+j5dngq-e...@mail.gmail.com
Re: Question regarding swap partition when installing Linux Mint Debian.
On Feb 1, 2014, at 12:42 PM, Lauge Andersen wrote: > Hi. > I intend to install Linux Mint Debian and give up on the Ubuntu based > distros. However when I go through the installer, I get to the point where > I'm supposed to choose the size of the different partitions, but can anyone > tell me how big should the swap partition be? > > I've read online that the size of the swap partition should be determined by > the memory. > I've therefore copypasted from my terminal below: > > free -m > total used free sharedbuffers cached > Mem: 7871 1546 6325 0 38491 > -/+ buffers/cache: 1015 6855 > Swap:12011 0 12011 > > I'm currently using Lubuntu, it got an applicantion in the menu called > "discs" and it shows that I currently got a swap partition on 8,5 GB. Will it > therefore be correct just to choose to make the swap partition in Linux Mint > Debian 8,5 GB as well? > Can I assume that the swap partition size the installer of an Ubuntu based > distro automatically chose is the best size for a partition for Debian based > distro as well? (I just chose the default installation when installing > Lubuntu as well as other Ubuntu based distros, and therefore didn't have to > chose the size of the partition manually) > > I guess this probably is a really stupid question, but since I'm fairly new > to Linux, and some of the info I found online regarding this question was > fairly confusing, I hope you can bear with me. And in case you notice quite > some misspellings, I might as well add that English is not my native tongue :) > > Any way thanks a lot for the help in advance, > Cheers. There are lots of theories about how big to make your swap partition (or partitions -- you can have more than one) Some people say two times the size of RAM but most don't give any reason why that particular multiplier. There is logic for having at least as much swap as you have RAM (in other words, a multiplier of 1.0) because, when the system panics, it may want to make a copy of RAM to the swap space for later analysis. This logic makes most sense if you're in a development shop where analyzing core dumps is a common practice; most folks aren't in that situation. For modern machines, it's possible (and even common) to have enough RAM that you never need to swap at all, so a multiplier of zero is reasonable. But there are uses for swap space that have nothing to do with swapping programs in and out of memory: For example, if you decide to put /tmp in a ramdisk, you may want to allocate a swap partition that's much larger than your RAM as backup in case somebody needs *lots* of space in /tmp. This will allow the system to use RAM for /tmp when the demand is light, and back-up to swap disk when demand is heavy. So the definitive answer is, "It depends". Your expected usage will determine how much swap space you need. My personal rule of thumb is, "Start with twice your RAM and adjust from there depending on experience." Does that help? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/049fb195-672e-408d-9621-23067ed91...@pobox.com
Re: Question regarding swap partition when installing Linux Mint Debian.
On 02/01/2014 03:42 PM, Lauge Andersen wrote: Hi. I intend to install Linux Mint Debian and give up on the Ubuntu based distros. However when I go through the installer, I get to the point where I'm supposed to choose the size of the different partitions, but can anyone tell me how big should the swap partition be? I've read online that the size of the swap partition should be determined by the memory. I've therefore copypasted from my terminal below: free -m total used free shared buffers cached Mem: 7871 1546 6325 0 38491 -/+ buffers/cache: 1015 6855 Swap:12011 0 12011 I'm currently using Lubuntu, it got an applicantion in the menu called "discs" and it shows that I currently got a swap partition on 8,5 GB. Will it therefore be correct just to choose to make the swap partition in Linux Mint Debian 8,5 GB as well? Can I assume that the swap partition size the installer of an Ubuntu based distro automatically chose is the best size for a partition for Debian based distro as well? (I just chose the default installation when installing Lubuntu as well as other Ubuntu based distros, and therefore didn't have to chose the size of the partition manually) I guess this probably is a really stupid question, but since I'm fairly new to Linux, and some of the info I found online regarding this question was fairly confusing, I hope you can bear with me. And in case you notice quite some misspellings, I might as well add that English is not my native tongue :) Any way thanks a lot for the help in advance, Cheers. If you already have that swap partition, just leave it there and your new distro will use it. You can have one swap for as many distros as you have on the machine! (Since you only use it with one distro at a time, you don't need more than one.) However, there seems to be some discrepancy in the measurements, unless you already have 2 swap partitions. Free says 12 GB, discs (with which I'm not familiar) says 8.5 GB. If you have two swap partitions, you can delete one and make it part of your usable disk space. I think you could safely delete the larger one. Parenthetically, I sort of liked Mint, but I thought it was somewhat limited. You might try Korora. But that's up to you, of course. --doug
Question regarding swap partition when installing Linux Mint Debian.
Hi. I intend to install Linux Mint Debian and give up on the Ubuntu based distros. However when I go through the installer, I get to the point where I'm supposed to choose the size of the different partitions, but can anyone tell me how big should the swap partition be? I've read online that the size of the swap partition should be determined by the memory. I've therefore copypasted from my terminal below: free -m total used free shared buffers cached Mem: 7871 1546 6325 0 38 491 -/+ buffers/cache: 1015 6855 Swap: 12011 0 12011 I'm currently using Lubuntu, it got an applicantion in the menu called "discs" and it shows that I currently got a swap partition on 8,5 GB. Will it therefore be correct just to choose to make the swap partition in Linux Mint Debian 8,5 GB as well? Can I assume that the swap partition size the installer of an Ubuntu based distro automatically chose is the best size for a partition for Debian based distro as well? (I just chose the default installation when installing Lubuntu as well as other Ubuntu based distros, and therefore didn't have to chose the size of the partition manually) I guess this probably is a really stupid question, but since I'm fairly new to Linux, and some of the info I found online regarding this question was fairly confusing, I hope you can bear with me. And in case you notice quite some misspellings, I might as well add that English is not my native tongue :) Any way thanks a lot for the help in advance, Cheers.
