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Child branches are branches that have a parent; a branch without a parent is referred to as the trunk or the mainline. [1] The trunk is also sometimes loosely referred to as HEAD, but properly head refers not to a branch, but to the most recent commit on a given branch, and both the trunk and each named branch has its own head.
It is a rough merging method, but widely applicable since it only requires one common ancestor to reconstruct the changes that are to be merged. Three way merge can be done on raw text (sequence of lines) or on structured trees. [2] The three-way merge looks for sections which are the same in only two of the three files.
Loop unrolling, also known as loop unwinding, is a loop transformation technique that attempts to optimize a program's execution speed at the expense of its binary size, which is an approach known as space–time tradeoff.
When a next-line predictor points to aligned groups of 2, 4, or 8 instructions, the branch target will usually not be the first instruction fetched, and so the initial instructions fetched are wasted. Assuming for simplicity, a uniform distribution of branch targets, 0.5, 1.5, and 3.5 instructions fetched are discarded, respectively.
5 years (main editions); ~3 years 2025-01-16 X Debian (LMDE), Ubuntu (main editions) desktop None Active Linux Lite: Jerry Bezencon Linux Lite Team 2012 7.2 [47] ? 2024-10-31 X Ubuntu: desktop None Active Mageia: Mageia Community mageia.org 2010 9 [48] 1 year 2023-09-04 X Mandriva Linux general None Active Mandriva Linux: Mandrakesoft S.A.
In source code management master may refer to the trunk branch. In disk imaging the gold master is the version which will be released to manufacturing for duplication. A Parallel ATA (aka IDE) hard drive interface supports two hard drives on a cable, which are designated master and slave. The distinction is required by the interface even though ...
The link register does not require the writes and reads of the memory containing the stack which can save a considerable percentage of execution time with repeated calls of small subroutines. The IBM POWER architecture , and its PowerPC and Power ISA successors, have a special-purpose link register, into which subroutine call instructions put ...
Run a first merge pass combining 25×100 MB chunks at a time, resulting in 20×2.5 GB sorted chunks. Run a second merge pass to merge the 20×2.5 GB sorted chunks into a single 50 GB sorted result; Although this requires an additional pass over the data, each read is now 4 MB long, so only 1/5 of the disk's time is spent seeking.