Messages in this thread | | | Date | Wed, 19 Jun 2013 16:46:21 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH 15/15] perf, tools: Add perf stat --transaction v3 |
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> This hard coded list isn't going to work for us on powerpc. > > We don't have HLE, so we won't ever have an event for el-start. > > I don't quite grok what the cycles-ct is about, checkpointed cycles?
The counter is check pointed on a transaction start, and set back to the checkpoint when an abort happens. This allows to count the cycles wasted in aborts, when you subtract from cycles-t.
> But I don't think we have anything equivalent.
But you have cycles-t and tx-start?
I can make el-start, cycles-ct optional
> I guess the simplest option is to make it a per-arch list inside the > perf tool?
I'm not sure that would be acceptable to the perf maintainers. Although I'm just guessing, I haven't heard any comments on this patch recently.
-Andi
-- ak@linux.intel.com -- Speaking for myself only.
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