[RndTbl] Zenbleed
Hartmut W Sager
hwsager at marityme.net
Wed Jul 26 01:52:45 CDT 2023
Yeah, I've always had misgivings and unease about speculative execution. For the few % of further gain in performance, the risks are just not worth it. Remember the Intel Pentium floating-point division bug? ("United we stand, divided we fall", "We are number 0.9999999997", etc.)
Hartmut
On Wed 26 Jul 2023 at 01:22:50 -05:00, Trevor Cordes <trevor at tecnopolis.ca> wrote:
> On 2023-07-25 Alberto Abrao wrote:
> > Here we go again...
>
> It is continuing to appear that speculative execution as a model is
> irretrievably broken. Maybe a new model is required. Or maybe NUMA
> was the correct solution, not SMP.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://muug.ca/pipermail/roundtable/attachments/20230726/bd2b0d78/attachment-0001.htm>
More information about the Roundtable
mailing list