lkml.org 
[lkml]   [2023]   [Jan]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v7 0/9] Add metrics for neoverse-n2-v2
From


在 2023/1/13 下午5:59, John Garry 写道:
> On 13/01/2023 09:22, Jing Zhang wrote:
>> Changes since v6:
>> - Split patch #1 into 3 smaller patches as suggested by Ian.
>> - Change perf_pmu__get_slots into perf_pmu__cpu_slots_per_cycle,
>>    per John's suggestion;
>> - Return NAN instead of 0 in perf_pmu__cpu_slots_per_cycle weak
>>    function, per John's suggestion;
>> - Factor out pmu_core__find_same function, per John's suggestion.
>> - Link:https://urldefense.com/v3/__https://lore.kernel.org/all/1673017529-1429208-1-git-send-email-renyu.zj@linux.alibaba.com/__;!!ACWV5N9M2RV99hQ!LhBq67uDCOsz1k7ZF4aQPHF0Bp8FsMr-ZNgCnBSUKF4qJTFODfnkId7lw_NXqB4qZUCpu-jbY8z8LTckoqFGz2Q8bA$ 
>
> This looks fine. But for this code:
>
> On 13/01/2023 09:22, Jing Zhang wrote:
>> +double perf_pmu__cpu_slots_per_cycle(void)
>> +{
>> +    char path[PATH_MAX];
>> +    unsigned long long slots = 0;
>
> I would prefer if this returned NAN (and not 0) for when we can't find a pmu or the value from ./caps/slots is zero, but I am not going to get too hung up on that.
>

Ok, I like this way too.

> For series:
>
> Reviewed-by: John Garry <john.g.garry@oracle.com>

Thank you very much indeed!

\
 
 \ /
  Last update: 2023-03-26 23:39    [W:0.136 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site