Messages in this thread |  | | From | (Alan Cox) | Subject | Re: CONUNDRUM. | Date | Thu, 13 Feb 1997 08:43:31 +0000 (GMT) |
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> > First guess Alexey. Linux crt0.s doesnt align the stack on an eight byte > > boundary. > Any reason why it shouldn't? Could this simple thing case a >10% > performance drop for some applications? If so why wasn't this noticed and > fixed long ago?
Because its incredibly non obvious. Some of the folk doing big number crunches noticed that the size of your environment changed the performance. They have submitted both a fix to crt0.o and a mod to gcc to make it align doubles on 8 byte boundaries. Im hopeful that will make gcc2.8
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