Re: Odd JIT timings

[Dan Sugalski]

At 11:55 AM -0300 1/24/03, Daniel Grunblatt wrote:

On Friday 24 January 2003 04:43, Dan Sugalski wrote:

 I just gave a run of examples/assembly/mops_p.pasm, getting some
 performance numbers. Here's an interesting timing.

    no jit:   24.9 seconds
    with jit: 33.6 seconds

 This is... odd. And on PPC, FWIW, and I'm not sure if it happens on x86.

 Someone care to check it out and poke around a bit?

CG vs JIT (running with non jitted opcdes) wins CG, always.

Ah, OK. No function preambles/postambles in the CG case. Hrm, time to go learn PPC assembly, I guess... :)
--
Dan

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