From c6b5ddb7a6bd11d84c183cd3c3fd3c507f797978 Mon Sep 17 00:00:00 2001 From: Alex Gronenwoud Date: Sun, 7 Mar 2004 12:09:31 +0000 Subject: Shifting chapter contents, and moving preparational sections of chapter 5 to a separate chapter. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3284 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689 --- chapter02/aboutsbus.xml | 39 --------------------------------------- 1 file changed, 39 deletions(-) delete mode 100644 chapter02/aboutsbus.xml (limited to 'chapter02/aboutsbus.xml') 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 @@ - -About SBUs - - -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 Static Binutils Unit -(abbreviated to SBU). - -It works like this: the first package you compile in this book is the -statically linked Binutils in , 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. - -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. - -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. - -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. - -If you wish to see actual timings for specific machines, have a look at -. - - - -- cgit v1.2.3-54-g00ecf