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Commit 55177c4e authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf c2c report: Add total loads sort key 



It is to be displayed in the main cachelines overall output:

  tot_loads

It displays sum of all load accesses for cacheline.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 01b84d76

tools/perf/builtin-c2c.c

+60 −0
Original line number Diff line number Diff line
@@ -514,6 +514,57 @@ tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 
	return tot_recs_left - tot_recs_right;

}



static uint64_t total_loads(struct c2c_stats *stats)

{

	uint64_t lclmiss, ldcnt;



	lclmiss  = stats->lcl_dram +

		   stats->rmt_dram +

		   stats->rmt_hitm +

		   stats->rmt_hit;



	ldcnt    = lclmiss +

		   stats->ld_fbhit +

		   stats->ld_l1hit +

		   stats->ld_l2hit +

		   stats->ld_llchit +

		   stats->lcl_hitm;



	return ldcnt;

}



static int

tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,

		struct hist_entry *he)

{

	struct c2c_hist_entry *c2c_he;

	int width = c2c_width(fmt, hpp, he->hists);

	uint64_t tot_recs;



	c2c_he = container_of(he, struct c2c_hist_entry, he);

	tot_recs = total_loads(&c2c_he->stats);



	return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);

}



static int64_t

tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,

	      struct hist_entry *left, struct hist_entry *right)

{

	struct c2c_hist_entry *c2c_left;

	struct c2c_hist_entry *c2c_right;

	uint64_t tot_recs_left;

	uint64_t tot_recs_right;



	c2c_left  = container_of(left, struct c2c_hist_entry, he);

	c2c_right = container_of(right, struct c2c_hist_entry, he);



	tot_recs_left  = total_loads(&c2c_left->stats);

	tot_recs_right = total_loads(&c2c_right->stats);



	return tot_recs_left - tot_recs_right;

}



#define HEADER_LOW(__h)			\

	{				\

		.line[1] = {		\
@@ -709,6 +760,14 @@ static struct c2c_dimension dim_tot_recs = { 
	.width		= 7,

};



static struct c2c_dimension dim_tot_loads = {

	.header		= HEADER_BOTH("Total", "Loads"),

	.name		= "tot_loads",

	.cmp		= tot_loads_cmp,

	.entry		= tot_loads_entry,

	.width		= 7,

};



static struct c2c_dimension *dimensions[] = {

	&dim_dcacheline,

	&dim_offset,
@@ -730,6 +789,7 @@ static struct c2c_dimension *dimensions[] = { 
	&dim_ld_rmthit,

	&dim_ld_llcmiss,

	&dim_tot_recs,

	&dim_tot_loads,

	NULL,

};