From: Yang Jihong yangjihong1@huawei.com
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: Leo Yan leo.yan@linaro.org Signed-off-by: Yang Jihong yangjihong1@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Reviewed-by: Hanjun Guo guohanjun@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- tools/perf/builtin-c2c.c | 71 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 570f523b6e1d..399cc080bd32 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -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,