Re: [PATCH v3 1/4] perf pmu: Support more complex PMU event aliasing

From: John Garry
Date: Fri Jun 28 2019 - 13:06:12 EST


On 28/06/2019 16:33, Andi Kleen wrote:
+ /*
+ * Match more complex aliases where the alias name is a comma-delimited
+ * list of tokens, orderly contained in the matching PMU name.
+ *
+ * Example: For alias "socket,pmuname" and PMU "socketX_pmunameY", we
+ * match "socket" in "socketX_pmunameY" and then "pmuname" in
+ * "pmunameY".

This needs to be documented in some manpage.

Hi Andi,

As I see, today the man page does not mention the matching from the alias events declared in the jsons.

The perf list command shows these aliases, so I am not sure how useful that info is adding to the man page.

What the man page does mention is the glob matching on the PMU device name - like how "imc" can match PMU device "uncore_imc_0", but I'm not changing around this.

Thanks,
John


-Andi


.