Kernel Size Tuning Guide - Revision history

Tim Bird: /* Appendix C - Things to research */ add to category System Size

2011-02-05T00:52:51Z

‎Appendix C - Things to research: add to category System Size

2010-06-25T20:31:42Z

‎Linux-tiny patches: convert reference to CelfPubWiki to local page

2010-06-25T20:11:53Z

‎Measuring the kernel: convert Data Read In Place to reference to local page (from CELFPubWiki)

2008-11-26T21:19:37Z

‎Appendix B - Configuration Option Details: fixed link

2008-11-26T21:17:48Z

‎References: fixed link

2008-11-14T16:05:33Z

‎How to use CONFIG_PRINTK

2008-07-23T18:06:07Z

2007-10-03T16:29:34Z

2007-09-19T18:40:58Z

‎Linux-tiny patches

2007-09-19T18:29:55Z

‎Comparing kernel symbols between two kernel images: fix sample output

← Older revision		Revision as of 00:52, 5 February 2011
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	[[Category:Kernel Size Tuning Guide]]		[[Category:Kernel Size Tuning Guide]]
		+	[[Category:System Size]]

← Older revision		Revision as of 20:31, 25 June 2010
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−	Please note that the last patch in this list ("do-printk") is available separately from the main Linux-tiny patch set. Please find this patch at: [[~~http://tree.celinuxforum.org/CelfPubWiki/DoPrintk~~ Do Printk]]	+	Please note that the last patch in this list ("do-printk") is available separately from the main Linux-tiny patch set. Please find this patch at: [[Do Printk]]

	The patches listed in this table represent patches that can be applied to a 2.6.16 Linux kernel. However, as of version 2.6.16, many options for reducing the kernel were already		The patches listed in this table represent patches that can be applied to a 2.6.16 Linux kernel. However, as of version 2.6.16, many options for reducing the kernel were already

@@ Line 15: / Line 15: @@
 For now, this document ignores Execute-In-Place (XIP) and Data-Read-In-Place (DRIP) techniques, the use of which have an impact on the amount of flash and RAM used by the kernel. See the following online resources for more information about these techniques:
-[[Kernel XIP]]
+[[Kernel XIP]] and [[Data Read In Place]]
 and
-[[http://tree.celinuxforum.org/CelfPubWiki/DataReadInPlace Data Read In Place]]
 ==== Measuring the kernel image size ====

@@ Line 408: / Line 408: @@
 For each option, would like to document:
 *what is size affect for different option values
-:*This page & [[Config Option Impact]] describe kernel size and RAM usage impact affected by each configuration option listed in "Kernel Configuration Options" above, on i386.
+:*This page & [[Kernel Size Tuning Guide Config Option Impact]] describe kernel size and RAM usage impact affected by each configuration option listed in "Kernel Configuration Options" above, on i386.
 *what is affect of performance, functionality, etc.

@@ Line 397: / Line 397: @@
 * eLinux wiki Linux-tiny page: [[Linux Tiny]]
 * Matt Mackall's {{pdf|linux tiny.pdf|Linux-tiny presentation}}
-* CE Linux Forum resources for reducing system size: [[System Size Resources]]
+* CE Linux Forum resources for reducing system size: [[System Size]]
 == Appendices ==

@@ Line 309: / Line 309: @@
 at the top of each file.  Now, the printk calls in those files will be compiled normally. Printk calls in other modules will be omitted.
-[[Image:Alert.gif]] - '''Important Note:''' The DO_PRINTK variable controls how the preprocessor will treat printk statements in the code.[[BR]]For this reason, this statement '''MUST''' appear at the top of the file, before any <pre>#include</pre> lines.
+[[Image:Alert.gif]] - '''Important Note:''' The DO_PRINTK variable controls how the preprocessor will treat printk statements in the code. For this reason, this statement '''MUST''' appear at the top of the file, before any <pre>#include</pre> lines.
 In order to change the set of printk messages preserved in the code, you will need to modify the <pre>DO_PRINTK</pre> lines, and recompile the kernel.  (There is no runtime control of the printk calls.) This is a simple mechanism, but it does provide a way to omit '''most''' of the printk messages from the kernel while still preserving some messages that may be useful during

@@ Line 395: / Line 395: @@
 == References ==
 * Linux-tiny project web site: [[http://www.selenic.com/linux-tiny/ linux-tiny]]
-* elinux wiki Linux-tiny page: [[Linux Tiny]]
+* eLinux wiki Linux-tiny page: [[Linux Tiny]]
 * Matt Mackall's {{pdf|linux tiny.pdf|Linux-tiny presentation}}
 * CE Linux Forum resources for reducing system size: [[System Size Resources]]

@@ Line 166: / Line 166: @@
 The Linux-tiny patch set is a set of patches maintained by Matt Mackall developed with the intent to help a developer reduce the size of the Linux kernel.
-The CELF wiki page describing these patches is at:
+These patches are described at: [[Linux Tiny]]
 [[Linux Tiny]]
 The Linux-tiny patch set includes a number of different patches to allow the kernel to be reduced in size.  Sometimes, the size reductions are accomplished by reducing the number of objects for a particular features (like the number of possible swap areas, or the number of tty discipline structures).  Sometimes, the size reductions are achieved by removing features or functions from the kernel.
-Here is a list of the individual Linux-tiny patches that are available for the 2.6.16 kernel:
+Here is a list of the individual Linux-tiny patches that are available for the 2.6.22 kernel at [[Linux Tiny Patch Details]]
 Please note that the last patch in this list ("do-printk") is available separately from the main Linux-tiny patch set.  Please find this patch at: [[http://tree.celinuxforum.org/CelfPubWiki/DoPrintk Do Printk]]

@@ Line 157: / Line 157: @@
 usb_get_configuration                       4001    1878   -2123
 proc_submiturb                              2294       -   -2294
-__log_buf                                 131072       -  -65536
+__log_buf                                 131072       - -131072
 </pre>