Messages in this thread |  | | Date | Wed, 05 Feb 2003 07:30:08 -0800 | From | "Martin J. Bligh" <> | Subject | Re: gcc 2.95 vs 3.21 performance |
| |
> GCC already went this way, i.e. it aligns functions and loops by > ridiculous (IMHO) amounts like 16 bytes. That's 7,5 bytes per alignment > on average. Now count lk functions and loops and mourn for lost icache. > Or just disassemble any .o module and read the damn code. > > This is the primary reason why people report larger kernels for GCC 3.x > > I am damn sure that if you compile with less sadistic alignment > you will get smaller *and* faster kernel.
There's only one real way to know that. Do it, test it.
M.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |