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Subject: Re: [QUESTION]perf stat: comment of miss ratio
To:     Andi Kleen <ak@linux.intel.com>,
        "liuqi (BA)" <liuqi115@hisilicon.com>
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 <20191109024754.GA573472@tassilo.jf.intel.com>
From:   John Garry <john.garry@huawei.com>
Message-ID: <71f30f49-d8b4-abff-9f75-674dcbb7fad0@huawei.com>
Date:   Wed, 13 Nov 2019 10:45:54 +0000
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On 09/11/2019 02:47, Andi Kleen wrote:
>>     Relevant code is checked to make sure that the ratio is calculated by
>>
>>     L1-dcache-load-misses/L1-dcache-loads, data "7.58%=30249/399189*100%" also
>>
>>     proves this conclusion.
>>
>>     So, I'm not sure why we use "of all L1-dcache hits" here to describe miss
>>     ratio,
> 
> Yes you're right it should be "of all L1-dcache accesses"
> 
> Please send a patch to fix the string and also check if this isn't wrong with some other
> ratio too.
> 

"    399,189      L1-dcache-loads           #  246.396 M/sec
      30,249      L1-dcache-load-misses     #    7.58% of all L1-dcache 
hits    (18.04%)"


If accesses and loads are equivalent, could we use consistent terminology?

Thanks,
John