linux-kernel - Re: [PATCH v5 3/4] perf, tools: Add support for printing new mem

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Date:   Wed, 23 Aug 2017 08:59:00 -0700
From:   Andi Kleen <andi@...stfloor.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Andi Kleen <ak@...ux.intel.com>, Andi Kleen <andi@...stfloor.org>,
        peterz@...radead.org, acme@...nel.org, jolsa@...nel.org,
        linux-kernel@...r.kernel.org, Joe Mario <jmario@...hat.com>
Subject: Re: [PATCH v5 3/4] perf, tools: Add support for printing new
 mem_info encodings

> so if I find HITM with this flag set I should count it
> as remote HITM then? something like attached.. untested

You mean for c2c? Yes looks reasonable.

-Andi

> 
> thanks,
> jirka
> 
> ---
> diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
> index 06f5a3a4295c..65e22b9e59f9 100644
> --- a/tools/perf/util/mem-events.c
> +++ b/tools/perf/util/mem-events.c
> @@ -279,6 +279,7 @@ int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi)
>  	u64 lvl    = data_src->mem_lvl;
>  	u64 snoop  = data_src->mem_snoop;
>  	u64 lock   = data_src->mem_lock;
> +	bool mr    = data_src->mem_remote;
>  	int err = 0;
>  
>  #define HITM_INC(__f)		\
> @@ -324,7 +325,7 @@ do {				\
>  			}
>  
>  			if ((lvl & P(LVL, REM_RAM1)) ||
> -			    (lvl & P(LVL, REM_RAM2))) {
> +			    (lvl & P(LVL, REM_RAM2)) || mr) {
>  				stats->rmt_dram++;
>  				if (snoop & P(SNOOP, HIT))
>  					stats->ld_shared++;
> @@ -334,7 +335,7 @@ do {				\
>  		}
>  
>  		if ((lvl & P(LVL, REM_CCE1)) ||
> -		    (lvl & P(LVL, REM_CCE2))) {
> +		    (lvl & P(LVL, REM_CCE2)) || mr) {
>  			if (snoop & P(SNOOP, HIT))
>  				stats->rmt_hit++;
>  			else if (snoop & P(SNOOP, HITM))
>