Hi Jason,<br>
<br>
Thanks for the information. About a year ago I spent some time
experimenting with some kernel compiling tweaks that reduced the size
of the kernel. They are being worked on by Matt Mackall, whose site is
here:<br>
<br>
<a href="http://www.selenic.com/linux-tiny/">http://www.selenic.com/linux-tiny/</a><br>
<br>
I hope to find time to investigate further in the near future.<br>
<br>
Regards,<br>
C David Rigby<br><br><div><span class="gmail_quote">On 1/5/06, <b class="gmail_sendername">Jason Bechtel</b> <<a href="mailto:jasonmbechtel@gmail.com">jasonmbechtel@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I thought this was important enough to resubscribe to the list in<br>order to post it. It's a recent tiny patch to the kernel that changes<br>the way it is compiled. If anyone on this list is experimenting with<br>creating smaller kernels, HEADS UP!
<br><br>>From LWN:<br>Drawing the line on inline<br><a href="http://lwn.net/SubscriberLink/166172/89e206e16d103a56/">http://lwn.net/SubscriberLink/166172/89e206e16d103a56/</a><br><br>"Ingo Molnar recently raised this issue with a set of patches changing
<br>how the kernel is built. By turning on unit-at-a-time compilation<br>(which causes gcc to consider an entire file in its optimization<br>decisions) and by turning off forced inlining, he was able to achieve<br>a 5.3% size reduction. Taking things to an extreme, and applying these
<br>patches to an "allyesconfig" kernel (one with all configuration<br>options turned on) results in a nearly 25% smaller kernel. That is, to<br>say the least, a significant size reduction to be achieved by such a
<br>small patch. Anybody interested in de-bloating the kernel should be<br>paying attention."<br><br><a href="http://lwn.net/Articles/166182/">http://lwn.net/Articles/166182/</a><br><a href="http://lwn.net/Articles/166184/">
http://lwn.net/Articles/166184/</a><br><br>"enabling CONFIG_CC_OPTIMIZE_FOR_SIZE gives a 20.4% size reduction,<br>and adding my latest debloating-queue gives an additional 4.5% of<br>reduction."<br><br><br><br>_______________________________________________
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<br></blockquote></div><br>