Re: Announcement: Release Candidate 1 for OProfile 1.0.0

On Fri, Sep 05, 2014 at 06:28:24PM +0100, William Cohen wrote:
> On 08/29/2014 12:12 PM, Will Deacon wrote:
> I noticed that the kernel was reporting instruction counts for ARM cortex
> a9. It looks like it is using the following INS_RENAME, 0x68 instead.
> "perf stat" reports cpu cycles on cortex a9, but operf on cortex a9
> returns the following (it work fine on a cortex a15):
> 
> 
> [root@dhcp129-63 testsuite]# operf stat ls
> perf_event_open failed with Operation not supported
> Caught runtime_error: Internal Error.  Perf event setup failed.
> Error running profiler

Looking back at my reply to you, the command you're running here is a bit
weird. You're giving `stat ls' as the program to profile, so if there's
nothing in the current directory called `ls' then stat will fail.

Not sure if it's related to the operf failure, but it's still odd.

Will

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