Re: [PATCH 1/2] perf tools: Add reference timestamp to perf header

From: David S. Ahern
Date: Mon Dec 13 2010 - 09:39:30 EST




On 12/12/10 13:16, Frederic Weisbecker wrote:

>> int perf_session__create_kernel_maps(struct perf_session *self)
>> {
>> int ret = machine__create_kernel_maps(&self->host_machine);
>> @@ -167,6 +190,9 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
>> */
>> if (perf_session__create_kernel_maps(self) < 0)
>> goto out_delete;
>> +
>> + if (perf_session__create_ref_time(self) < 0)
>> + goto out_delete;
>
> So, it does record it anytime?

Simplest to always add it the header as it does no harm if not used. To
make it conditional means adding an input parameter to
perf_session__new() and then updating all the callers.

Is the preference to make it conditional?

David


>
>> }
>>
>> perf_session__update_sample_type(self);
>
>
> Other than that, looks good!
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