Commit 6d9ee5b3 authored by Yang Jihong's avatar Yang Jihong Committed by Zheng Zengkai
Browse files

perf c2c: Add dimensions for load miss 

maillist inclusion
category: Feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I53L83
CVE: NA

Reference: https://lore.kernel.org/all/20210104020930.GA4897@leoy-ThinkPad-X240s/



-------------------

Add dimensions for load miss and its percentage calculation, which is to
be displayed in the single cache line output.

Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
Signed-off-by: default avatarYang Jihong <yangjihong1@huawei.com>
Reviewed-by: default avatarWei Li <liwei391@huawei.com>
Reviewed-by: default avatarHanjun Guo <guohanjun@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent d731e184

tools/perf/builtin-c2c.c

+107 −0
Original line number Diff line number Diff line
@@ -624,6 +624,10 @@ tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 
	 (stats)->rmt_hitm +		\

	 (stats)->rmt_hit)



#define TOT_LD_MISS(stats)		\

	((stats)->lcl_dram +		\

	 (stats)->rmt_dram)



static int tot_ld_hit_entry(struct perf_hpp_fmt *fmt,

			    struct perf_hpp *hpp,

			    struct hist_entry *he)
@@ -656,6 +660,38 @@ static int64_t tot_ld_hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 
	return tot_hit_left - tot_hit_right;

}



static int tot_ld_miss_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);

	unsigned int tot_miss;



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

	tot_miss = TOT_LD_MISS(&c2c_he->stats);



	return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_miss);

}



static int64_t tot_ld_miss_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_miss_left;

	uint64_t tot_miss_right;



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

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



	tot_miss_left  = TOT_LD_MISS(&c2c_left->stats);

	tot_miss_right = TOT_LD_MISS(&c2c_right->stats);



	return tot_miss_left - tot_miss_right;

}



#define STAT_FN_ENTRY(__f)					\

static int							\

__f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,	\
@@ -1104,6 +1140,58 @@ percent_ld_hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 
	return per_left - per_right;

}



static double percent_ld_miss(struct c2c_hist_entry *c2c_he)

{

	struct c2c_hists *hists;

	int tot, st;



	hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);



	st  = TOT_LD_MISS(&c2c_he->stats);

	tot = TOT_LD_MISS(&hists->stats);



	return percent(st, tot);

}



static int

percent_ld_miss_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);

	char buf[10];

	double per;



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

	per = percent_ld_miss(c2c_he);

	return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));

}



static int

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

		      struct hist_entry *he)

{

	return percent_color(fmt, hpp, he, percent_ld_miss);

}



static int64_t

percent_ld_miss_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;

	double per_left;

	double per_right;



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

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



	per_left  = percent_ld_miss(c2c_left);

	per_right = percent_ld_miss(c2c_right);



	return per_left - per_right;

}



static int

percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,

			   struct hist_entry *he)
@@ -1484,6 +1572,14 @@ static struct c2c_dimension dim_cl_tot_ld_hit = { 
	.width		= 7,

};



static struct c2c_dimension dim_cl_tot_ld_miss = {

	.header		= HEADER_SPAN_LOW("Miss"),

	.name		= "cl_tot_ld_miss",

	.cmp		= tot_ld_miss_cmp,

	.entry		= tot_ld_miss_entry,

	.width		= 7,

};



static struct c2c_dimension dim_cl_lcl_hitm = {

	.header		= HEADER_SPAN_LOW("Lcl"),

	.name		= "cl_lcl_hitm",
@@ -1646,6 +1742,15 @@ static struct c2c_dimension dim_percent_ld_hit = { 
	.width		= 7,

};



static struct c2c_dimension dim_percent_ld_miss = {

	.header		= HEADER_SPAN_LOW("Miss"),

	.name		= "percent_ld_miss",

	.cmp		= percent_ld_miss_cmp,

	.entry		= percent_ld_miss_entry,

	.color		= percent_ld_miss_color,

	.width		= 7,

};



static struct c2c_dimension dim_percent_stores_l1hit = {

	.header		= HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),

	.name		= "percent_stores_l1hit",
@@ -1792,6 +1897,7 @@ static struct c2c_dimension *dimensions[] = { 
	&dim_cl_lcl_hitm,

	&dim_cl_rmt_hitm,

	&dim_cl_tot_ld_hit,

	&dim_cl_tot_ld_miss,

	&dim_tot_stores,

	&dim_stores_l1hit,

	&dim_stores_l1miss,
@@ -1809,6 +1915,7 @@ static struct c2c_dimension *dimensions[] = { 
	&dim_percent_rmt_hitm,

	&dim_percent_lcl_hitm,

	&dim_percent_ld_hit,

	&dim_percent_ld_miss,

	&dim_percent_tot_ld_hit,

	&dim_percent_stores_l1hit,

	&dim_percent_stores_l1miss,