On Wed, Jan 03, 2018 at 02:46:07PM +1100, Christopher Samuel wrote: > There appears to be no microcode fix possible and the kernel fix will > incur a significant performance penalty, people are talking about in the > range of 5%-30% depending on the generation of the CPU. :-(
The performance hit (at least for the current patches) is related to system calls, which HPC programs using networking gear like OmniPath or Infiniband don't do much of. -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
