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swift 13/12/17 09:10:19 |
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Modified: hb-install-x86+amd64-disk.xml |
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Log: |
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Fix bug #445626 - Add info on swap space and possible sizing |
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|
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Revision Changes Path |
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1.24 xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml?rev=1.24&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml?rev=1.24&content-type=text/plain |
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diff : http://sources.gentoo.org/viewvc.cgi/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml?r1=1.23&r2=1.24 |
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Index: hb-install-x86+amd64-disk.xml |
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=================================================================== |
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RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml,v |
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retrieving revision 1.23 |
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retrieving revision 1.24 |
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diff -u -r1.23 -r1.24 |
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--- hb-install-x86+amd64-disk.xml 11 Apr 2013 18:25:12 -0000 1.23 |
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+++ hb-install-x86+amd64-disk.xml 17 Dec 2013 09:10:19 -0000 1.24 |
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@@ -4,7 +4,7 @@ |
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<!-- The content of this document is licensed under the CC-BY-SA license --> |
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<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> |
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|
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-<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml,v 1.23 2013/04/11 18:25:12 swift Exp $ --> |
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+<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-disk.xml,v 1.24 2013/12/17 09:10:19 swift Exp $ --> |
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<sections> |
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|
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@@ -13,8 +13,8 @@ |
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This chapter describes how to partition a disk for future usage. |
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</abstract> |
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|
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-<version>16</version> |
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-<date>2013-04-11</date> |
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+<version>17</version> |
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+<date>2013-12-17</date> |
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|
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<section> |
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<title>Introduction to Block Devices</title> |
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@@ -103,7 +103,7 @@ |
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<tr> |
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<ti><path>/dev/sda2</path></ti> |
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<ti>(swap)</ti> |
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- <ti>512M</ti> |
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+ <ti>512M or higher</ti> |
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<ti>Swap partition</ti> |
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</tr> |
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<tr> |
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@@ -197,8 +197,8 @@ |
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/dev/sda8 ext4 1011M 483M 477M 51% /opt |
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/dev/sda9 ext4 2.0G 607M 1.3G 32% /var |
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/dev/sda1 ext2 51M 17M 31M 36% /boot |
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-/dev/sda6 swap 516M 12M 504M 2% <not mounted> |
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-<comment>(Unpartitioned space for future usage: 2 GB)</comment> |
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+/dev/sda6 swap 1516M 12M 1.4G 1% <not mounted> |
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+<comment>(Unpartitioned space for future usage: 1 GB)</comment> |
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</pre> |
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|
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<p> |
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@@ -414,8 +414,29 @@ |
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partition, then <c>p</c> to tell fdisk that you want a primary partition. Then |
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type <c>2</c> to create the second primary partition, <path>/dev/sda2</path> in |
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our case. When prompted for the first cylinder, hit enter. When prompted for |
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-the last cylinder, type <c>+512M</c> to create a partition 512MB in size. After |
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-you've done this, type <c>t</c> to set the partition type, <c>2</c> to select |
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+the last cylinder, type <c>+512M</c> to create a partition 512MB in size. |
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+</p> |
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+ |
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+<p> |
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+There is no perfect value for the swap partition. The purpose of swap space is |
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+to provide disk storage to the kernel when internal memory (RAM) is under |
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+pressure. A swap space allows for the kernel to move memory pages that are |
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+not likely to be accessed soon to disk (swap or page-out), freeing memory. Of |
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+course, if that memory is suddenly needed, these pages need to be put back in |
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+memory (page-in) which will take a while (as disks are very slow compared to |
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+internal memory). |
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+</p> |
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+ |
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+<p> |
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+If you are not going to run memory intensive applications or you have lots of |
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+memory available, then you probably do not need much swap space. However, swap |
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+space is also used to store the entire memory in case of hibernation. If you |
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+plan on using hibernation, you will need a bigger swap space, often at least |
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+the amount of memory you have in your system. |
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+</p> |
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+ |
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+<p> |
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+After you've done this, type <c>t</c> to set the partition type, <c>2</c> to select |
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the partition you just created and then type in <c>82</c> to set the partition |
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type to "Linux Swap". After completing these steps, typing <c>p</c> should |
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display a partition table that looks similar to this: |
Archives