Hi John,
Well, that does not sound utterly unbearable.
cheers,
Marco
On May 14, 2009, at 5:45 PM, John van Groningen wrote:
Hi Marko,
Just wondering: What is too slow to support a shared heap? Two
times slower? Ten times?
This depends on the processor and how many locks are necessary.
Using a
locked instruction only if a thunk has to be evaluated, will probably
increase the exection time about 30 to 50 percent on current Intel
Core ..
and AMD processors. On these processors a locked instructions takes
at least
about 20 clock cycles. On a Pentium 4 processor however this is
about a 100
clock cycles.
Kind regards,
John van Groningen
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