Heiner,
Jens-Heiner Rechtien wrote:
Hi,
I did some measurements with a copy of SRC680 m164 and one of the more
pathological calc documents, and found that the "lock" prefix indeed
imposes a significant overhead of about 8% on a non HT 1.8 GHz Pentium IV.
8% would really be a great improvement, especially compared to the
amount of work we need to invest. I expect this relative number to even
be higher after the integration of Maltes perform07 CWS.
So, we should find a way to integrate this change in a compatible (SMP,
ABI) way, in particular because of performance improvements are even be
more interesting for people with older machines.
Heiner
Kay
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