On Fri, Sep 20, 2013 at 07:40:38AM -0700, Andi Kleen wrote: > [This has kernel and user parts, so will need > review/ack/merges from both perf kernel and user land maintainers] > [v2: Address Peter's feedback for the kernel parts] > > 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
I checked and tried (with no actuall data.. have no Haswell server) and it seems ok for the perf tool part: Acked-by: Jiri Olsa <jo...@redhat.com> thanks, jirka -- 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/
