Extremely poor performance crunching random numbers under PIV-FC5

[Andy Green]

BankHacker wrote:

> It is surprising that when the program is compiled with the static
> flag enabled, it runs very fast, doing 10 million calculations in only
> 0.4 seconds. Nevertheless, when it is compiled without the static flag
> (that is dynamic binary), the performance becomes very poor, consuming
> 40 seconds in doing it.

Nice problem!  What libraries are being linked in to your executable 
when linked dynamically?

ldd dynamic-test-cpu-2

Do you see any serious difference in the output files if you run

strace -o /tmp/dump-dynamic dynamic-test-cpu-2

vs

strace -o /tmp/dump-static static-test-cpu-2

Anything in /var/log/messages?

Any possibility that the dynamic one goes to swap for some reason?

-Andy
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