Hi Listers,
again a nice finding about Oracle 12.2 - this time in combination with SLES12
and a cheap E5 CPU. Somehow (I still can't explain why) I can't use Intel's TSX
(Transactional Synchronization Extensions) there, and thus, the Oracle Binaries
using libpthread will fail.
What I did about it, is in this blog:
http://www.usn-it.de/index.php/2017/07/10/oracle-rac-12r2-on-sles12-how-to-disable-hardware-lock-elision-support/
But I still don't know why this happens - seems to be a bad thing and might
degrade performance, but I had no time for benchmarks yet.
Is it simply the chip, or the distribution? I was never able to reproduce that
im my virtual environment, but I have entirely different chips (older E7's).
Any background info is highly appreciated!
Thank you in advance!
--
Martin Klier | Performing Databases GmbH
Managing Partner | Senior DB Consultant
Oracle ACE
martin.klier@xxxxxxxxxxxxxxxxx | https://www.performing-databases.com ;
