Standard Build Unit
A "standard build unit" ("SBU") is a term used during initial bootstrapping of the system, and represents the amount of time required to build the first package in LFS on a given computer. Its creation was prompted by the long time required to build a LFS system, and the desire of many users to know how long a source tarball will take to build ahead of time.
As of Linux From Scratch version 6.3, the first package built by the user is GNU binutils. When building it, users are encouraged to time that build process using shell constructs and dub that time that system's "standard build unit". Once this number is known, an estimate of the time required to build later packages is expressed relative to the known SBU.
Several packages built during compilation take much longer to build than binutils, including the GNU C library (rated at 9.5 SBUs). The unit is not a concrete description, and must be interpreted as an approximation; many various and unrelated factors influence the wall-clock time that a package requires to build.
Read more about this topic: Linux From Scratch
Famous quotes containing the words standard, build and/or unit:
“An indirect quotation we can usually expect to rate only as better or worse, more or less faithful, and we cannot even hope for a strict standard of more and less; what is involved is evaluation, relative to special purposes, of an essentially dramatic act.”
—Willard Van Orman Quine (b. 1908)
“You can’t build life the way you put blocks together, Toddy.... Did Knox teach you what makes the blood flow? Did he tell you how thoughts come and how they go, and why things are remembered and forgot?... What makes a thought start?... You don’t know and you’ll never know or understand.... Look, look at yourself. Could you be a doctor, a healing man, with the things those eyes have seen? There’s a lot of knowledge in those eyes, but no understanding.”
—Philip MacDonald, and Robert Wise. Gray (Boris Karloff)
“During the Suffragette revolt of 1913 I ... [urged] that what was needed was not the vote, but a constitutional amendment enacting that all representative bodies shall consist of women and men in equal numbers, whether elected or nominated or coopted or registered or picked up in the street like a coroner’s jury. In the case of elected bodies the only way of effecting this is by the Coupled Vote. The representative unit must not be a man or a woman but a man and a woman.”
—George Bernard Shaw (1856–1950)