On 02/17/2010 04:56 PM, Alexander Graf wrote:
So I changed to code according to your input by making all FPU calls explicit, getting rid of all binary patching.
On the PowerStation again I'm running this code (simplified to the important instructions) using kvmctl:
li r2, 0x1234
std r2, 0(r1)
lfd f3, 0(r1)
lfd f4, 0(r1)
do_mul:
fmul f0, f3, f4
b do_mul
With the following kvm_stat output:
dec 2236 53
exits 60797802 1171403
ext_intr 379 4
halt_wakeup 0 0
inst_emu 60795247 1171344
ld 60795132 1171348
So I'm getting 1171403 fmul operations per second. And that's even with non-optimized instruction fetching. Not bad.
It's a large number, but won't real hardware be three orders of
magnitude faster?
--
error compiling committee.c: too many arguments to function
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