QPI will abort TSX transactions?

Intel® ISA Extensions

Use hardware-based isolation and memory encryption to provide more code protection in your solutions.

QPI will abort TSX transactions?

297 Views

On a system with at least two NUMA nodes - will an accessing cache-lines from another NUMA node (through QPI) abort a RTM/HLE transaction?

I can't find a hint in the Intel documentation.

AFAIK, TSX uses the cc-snoop protocols so I would assume that the snoop protocol messages are not passed through the QPI.

With which error is the transaction aborted? With capacity error or memory confilct ...?

best regards,

Oliver

Link Copied

0 Replies

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.