Commit d731e184 authored by Yang Jihong's avatar Yang Jihong Committed by Zheng Zengkai
Browse files

perf c2c: Add dimensions for load hit 

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 hit 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 d2cdcdaf

tools/perf/builtin-c2c.c

+71 −0
Original line number Diff line number Diff line
@@ -1052,6 +1052,58 @@ percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 
	return per_left - per_right;

}



static double percent_ld_hit(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_HIT(&c2c_he->stats);

	tot = TOT_LD_HIT(&hists->stats);



	return percent(st, tot);

}



static int

percent_ld_hit_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_hit(c2c_he);

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

}



static int

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

		     struct hist_entry *he)

{

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

}



static int64_t

percent_ld_hit_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_hit(c2c_left);

	per_right = percent_ld_hit(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)
@@ -1424,6 +1476,14 @@ static struct c2c_dimension dim_cl_rmt_hitm = { 
	.width		= 7,

};



static struct c2c_dimension dim_cl_tot_ld_hit = {

	.header		= HEADER_SPAN("--- Load ---", "Hit", 1),

	.name		= "cl_tot_ld_hit",

	.cmp		= tot_ld_hit_cmp,

	.entry		= tot_ld_hit_entry,

	.width		= 7,

};



static struct c2c_dimension dim_cl_lcl_hitm = {

	.header		= HEADER_SPAN_LOW("Lcl"),

	.name		= "cl_lcl_hitm",
@@ -1577,6 +1637,15 @@ static struct c2c_dimension dim_percent_tot_ld_hit = { 
	.width		= 8,

};



static struct c2c_dimension dim_percent_ld_hit = {

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

	.name		= "percent_ld_hit",

	.cmp		= percent_ld_hit_cmp,

	.entry		= percent_ld_hit_entry,

	.color		= percent_ld_hit_color,

	.width		= 7,

};



static struct c2c_dimension dim_percent_stores_l1hit = {

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

	.name		= "percent_stores_l1hit",
@@ -1722,6 +1791,7 @@ static struct c2c_dimension *dimensions[] = { 
	&dim_rmt_hitm,

	&dim_cl_lcl_hitm,

	&dim_cl_rmt_hitm,

	&dim_cl_tot_ld_hit,

	&dim_tot_stores,

	&dim_stores_l1hit,

	&dim_stores_l1miss,
@@ -1738,6 +1808,7 @@ static struct c2c_dimension *dimensions[] = { 
	&dim_percent_hitm,

	&dim_percent_rmt_hitm,

	&dim_percent_lcl_hitm,

	&dim_percent_ld_hit,

	&dim_percent_tot_ld_hit,

	&dim_percent_stores_l1hit,

	&dim_percent_stores_l1miss,