Re: [PATCH 15/15] perf, tools: Add perf stat --transaction v3
From: Andi Kleen
Date: Wed Jun 19 2013 - 10:46:26 EST
> 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.
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/