[This has kernel and user parts. Both sides have been reviewed now, so hopefully it's good to merge.] [v2: Address Peter's feedback for the kernel parts] [v3: Rebased to current tip. Added Ack/Reviewed-by for user tools code]
Note this also needs the separately posted 64bit comparison fix to correctly report abort codes. This is currently the last part of the TSX PMU code, just adding the left over bits: This adds some changes to the user interfaces. I'll send patches for the manpage separately. - Report the transaction abort flags to user space using a new field, and add the code to display them. This is used to classify abort types, also fairly important for tuning as it guides the tuning process, together with the abort weight that was added earleir. [3 patches, generic, x86, user tools] - Add support for reporting the two new TSX LBR flags: in_tx and abort_tx. The code to handle the LBRs was already added earlier, this just adds the code to report, filter and display them. - Add a workaround for a Haswell issue that it reports an extra LBR record for every abort. We just filter those out in the kernel. Open perf TSX issues left: - Revisit automatic enabling of precise for tx/el-abort - Need to fix the sort handling in the user tools to actually sort on other fields - The aggregated LBR display in the user tools is not very useful for transactions, need a way to report them in a histogram like backtraces. - May want some shortcut options for record --transaction --weight / report --sort symbol,transaction,weight -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
