They are basically hints for the compiler, telling it whether a condition is likely or not. Based on this knowledge, the compiler can optimize the code better, by doing things such as improving cache locality for the code. Avishay Traeger http://www.fsl.cs.sunysb.edu/~avishay/ On Thu, 2006-01-05 at 12:21 +0530, charan raj wrote: > > I am new to this mailing list ..... > > i just came across this unlikely() and likely() function in kernel > code ( eg .. unlikely() is used in fork.c ) , i don;t have any idea > about what the above 2 functions does ...... > > can anybody plz explain what the two functions all about ..... > > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
