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    SubjectRe: [patch] entry.S asm improvement (removed some ugly jmp)
       Date: 	Sat, 28 Nov 1998 15:07:15 +0100 (CET)
    From: Andrea Arcangeli <andrea@e-mind.com>

    I think that my simulation was bogus. This because I guess that
    return_all will invalidate any kind of return prediction... So the
    patch could improve things even if the simulation didn' t
    agreed. Is there any volunteers that could do a benchmark of
    2.1.130 and 2.1.130 + my asm patch? To benchmark you should
    generate a signal flood to run many times a signal handler or
    something similar... I am not going to benchmark myself since my
    hardware seems to not care too much about the return prediction ;)

    I believe lat_sig from lmbench would be a good way to generate such a
    sequence of events.

    Later,
    David S. Miller
    davem@dm.cobaltmicro.com

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