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diff --git a/chapter02/aboutsbus.xml b/chapter02/aboutsbus.xml deleted file mode 100644 index 0c3e93995..000000000 --- a/chapter02/aboutsbus.xml +++ /dev/null @@ -1,39 +0,0 @@ -<sect1 id="prepare-aboutsbus"> -<title>About SBUs</title> -<?dbhtml filename="aboutsbus.html" dir="chapter02"?> - -<para>Most people would like to know beforehand how long it approximately -takes to compile and install each package. But "Linux from Scratch" is built -on so many different systems, it is not possible to give actual times that are -anywhere near accurate: the biggest package (Glibc) won't take more than -twenty minutes on the fastest systems, but will take something like three days -on the slowest -- no kidding. So instead of giving actual times, we've come up -with the idea of using the <emphasis>Static Binutils Unit</emphasis> -(abbreviated to <emphasis>SBU</emphasis>).</para> - -<para>It works like this: the first package you compile in this book is the -statically linked Binutils in <xref linkend="chapter-temporary-tools"/>, and the time it -takes to compile this package is what we call the "Static Binutils Unit" or -"SBU". All other compile times will be expressed relative to this time.</para> - -<para>For example, the time it takes to build the static version of GCC is -&gcc-time-tools-pass1;s. This means that if on your system it took 10 minutes -to compile and install the static Binutils, then you know it will take -approximately 45 minutes to build the static GCC. Fortunately, most build times -are much shorter than the one of Binutils.</para> - -<para>Note that if the system compiler on your host is GCC-2 based, the SBUs -listed may end up being somewhat understated. This is because the SBU is based -on the very first package, compiled with the old GCC, while the rest of the -system is compiled with the newer GCC-&gcc-version; which is known to be -approximately 30% slower.</para> - -<para>Also note that SBUs don't work well for SMP-based machines. But if you're -so lucky as to have multiple processors, chances are that your system is so fast -that you won't mind.</para> - -<para>If you wish to see actual timings for specific machines, have a look at -<ulink url="&lfs-root;~bdubbs/"/>.</para> - -</sect1> - |