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-rw-r--r--tools/perf/util/stat-shadow.c434
1 files changed, 434 insertions, 0 deletions
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
new file mode 100644
index 000000000000..53e8bb7bc852
--- /dev/null
+++ b/tools/perf/util/stat-shadow.c
@@ -0,0 +1,434 @@
+#include <stdio.h>
+#include "evsel.h"
+#include "stat.h"
+#include "color.h"
+
+enum {
+ CTX_BIT_USER = 1 << 0,
+ CTX_BIT_KERNEL = 1 << 1,
+ CTX_BIT_HV = 1 << 2,
+ CTX_BIT_HOST = 1 << 3,
+ CTX_BIT_IDLE = 1 << 4,
+ CTX_BIT_MAX = 1 << 5,
+};
+
+#define NUM_CTX CTX_BIT_MAX
+
+static struct stats runtime_nsecs_stats[MAX_NR_CPUS];
+static struct stats runtime_cycles_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_stalled_cycles_front_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_stalled_cycles_back_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_branches_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_cacherefs_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_l1_dcache_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_l1_icache_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_ll_cache_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_itlb_cache_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_dtlb_cache_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_cycles_in_tx_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_transaction_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_elision_stats[NUM_CTX][MAX_NR_CPUS];
+
+struct stats walltime_nsecs_stats;
+
+static int evsel_context(struct perf_evsel *evsel)
+{
+ int ctx = 0;
+
+ if (evsel->attr.exclude_kernel)
+ ctx |= CTX_BIT_KERNEL;
+ if (evsel->attr.exclude_user)
+ ctx |= CTX_BIT_USER;
+ if (evsel->attr.exclude_hv)
+ ctx |= CTX_BIT_HV;
+ if (evsel->attr.exclude_host)
+ ctx |= CTX_BIT_HOST;
+ if (evsel->attr.exclude_idle)
+ ctx |= CTX_BIT_IDLE;
+
+ return ctx;
+}
+
+void perf_stat__reset_shadow_stats(void)
+{
+ memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));
+ memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));
+ memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));
+ memset(runtime_stalled_cycles_back_stats, 0, sizeof(runtime_stalled_cycles_back_stats));
+ memset(runtime_branches_stats, 0, sizeof(runtime_branches_stats));
+ memset(runtime_cacherefs_stats, 0, sizeof(runtime_cacherefs_stats));
+ memset(runtime_l1_dcache_stats, 0, sizeof(runtime_l1_dcache_stats));
+ memset(runtime_l1_icache_stats, 0, sizeof(runtime_l1_icache_stats));
+ memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats));
+ memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats));
+ memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats));
+ memset(runtime_cycles_in_tx_stats, 0,
+ sizeof(runtime_cycles_in_tx_stats));
+ memset(runtime_transaction_stats, 0,
+ sizeof(runtime_transaction_stats));
+ memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));
+ memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
+}
+
+/*
+ * Update various tracking values we maintain to print
+ * more semantic information such as miss/hit ratios,
+ * instruction rates, etc:
+ */
+void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
+ int cpu)
+{
+ int ctx = evsel_context(counter);
+
+ if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK))
+ update_stats(&runtime_nsecs_stats[cpu], count[0]);
+ else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
+ update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);
+ else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
+ update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
+ else if (perf_stat_evsel__is(counter, TRANSACTION_START))
+ update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
+ else if (perf_stat_evsel__is(counter, ELISION_START))
+ update_stats(&runtime_elision_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
+ update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
+ update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
+ update_stats(&runtime_branches_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
+ update_stats(&runtime_cacherefs_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
+ update_stats(&runtime_l1_dcache_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
+ update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
+ update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
+ update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
+ else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
+ update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
+}
+
+/* used for get_ratio_color() */
+enum grc_type {
+ GRC_STALLED_CYCLES_FE,
+ GRC_STALLED_CYCLES_BE,
+ GRC_CACHE_MISSES,
+ GRC_MAX_NR
+};
+
+static const char *get_ratio_color(enum grc_type type, double ratio)
+{
+ static const double grc_table[GRC_MAX_NR][3] = {
+ [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },
+ [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },
+ [GRC_CACHE_MISSES] = { 20.0, 10.0, 5.0 },
+ };
+ const char *color = PERF_COLOR_NORMAL;
+
+ if (ratio > grc_table[type][0])
+ color = PERF_COLOR_RED;
+ else if (ratio > grc_table[type][1])
+ color = PERF_COLOR_MAGENTA;
+ else if (ratio > grc_table[type][2])
+ color = PERF_COLOR_YELLOW;
+
+ return color;
+}
+
+static void print_stalled_cycles_frontend(FILE *out, int cpu,
+ struct perf_evsel *evsel
+ __maybe_unused, double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " frontend cycles idle ");
+}
+
+static void print_stalled_cycles_backend(FILE *out, int cpu,
+ struct perf_evsel *evsel
+ __maybe_unused, double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " backend cycles idle ");
+}
+
+static void print_branch_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_branches_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all branches ");
+}
+
+static void print_l1_dcache_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_l1_dcache_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all L1-dcache hits ");
+}
+
+static void print_l1_icache_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_l1_icache_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all L1-icache hits ");
+}
+
+static void print_dtlb_cache_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_dtlb_cache_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all dTLB cache hits ");
+}
+
+static void print_itlb_cache_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_itlb_cache_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all iTLB cache hits ");
+}
+
+static void print_ll_cache_misses(FILE *out, int cpu,
+ struct perf_evsel *evsel __maybe_unused,
+ double avg)
+{
+ double total, ratio = 0.0;
+ const char *color;
+ int ctx = evsel_context(evsel);
+
+ total = avg_stats(&runtime_ll_cache_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg / total * 100.0;
+
+ color = get_ratio_color(GRC_CACHE_MISSES, ratio);
+
+ fprintf(out, " # ");
+ color_fprintf(out, color, "%6.2f%%", ratio);
+ fprintf(out, " of all LL-cache hits ");
+}
+
+void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
+ double avg, int cpu, enum aggr_mode aggr)
+{
+ double total, ratio = 0.0, total2;
+ int ctx = evsel_context(evsel);
+
+ if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
+ total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+ if (total) {
+ ratio = avg / total;
+ fprintf(out, " # %5.2f insns per cycle ", ratio);
+ } else {
+ fprintf(out, " ");
+ }
+ total = avg_stats(&runtime_stalled_cycles_front_stats[ctx][cpu]);
+ total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[ctx][cpu]));
+
+ if (total && avg) {
+ ratio = total / avg;
+ fprintf(out, "\n");
+ if (aggr == AGGR_NONE)
+ fprintf(out, " ");
+ fprintf(out, " # %5.2f stalled cycles per insn", ratio);
+ }
+
+ } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) &&
+ runtime_branches_stats[ctx][cpu].n != 0) {
+ print_branch_misses(out, cpu, evsel, avg);
+ } else if (
+ evsel->attr.type == PERF_TYPE_HW_CACHE &&
+ evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D |
+ ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+ ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
+ runtime_l1_dcache_stats[ctx][cpu].n != 0) {
+ print_l1_dcache_misses(out, cpu, evsel, avg);
+ } else if (
+ evsel->attr.type == PERF_TYPE_HW_CACHE &&
+ evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1I |
+ ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+ ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
+ runtime_l1_icache_stats[ctx][cpu].n != 0) {
+ print_l1_icache_misses(out, cpu, evsel, avg);
+ } else if (
+ evsel->attr.type == PERF_TYPE_HW_CACHE &&
+ evsel->attr.config == ( PERF_COUNT_HW_CACHE_DTLB |
+ ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+ ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
+ runtime_dtlb_cache_stats[ctx][cpu].n != 0) {
+ print_dtlb_cache_misses(out, cpu, evsel, avg);
+ } else if (
+ evsel->attr.type == PERF_TYPE_HW_CACHE &&
+ evsel->attr.config == ( PERF_COUNT_HW_CACHE_ITLB |
+ ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+ ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
+ runtime_itlb_cache_stats[ctx][cpu].n != 0) {
+ print_itlb_cache_misses(out, cpu, evsel, avg);
+ } else if (
+ evsel->attr.type == PERF_TYPE_HW_CACHE &&
+ evsel->attr.config == ( PERF_COUNT_HW_CACHE_LL |
+ ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+ ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
+ runtime_ll_cache_stats[ctx][cpu].n != 0) {
+ print_ll_cache_misses(out, cpu, evsel, avg);
+ } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) &&
+ runtime_cacherefs_stats[ctx][cpu].n != 0) {
+ total = avg_stats(&runtime_cacherefs_stats[ctx][cpu]);
+
+ if (total)
+ ratio = avg * 100 / total;
+
+ fprintf(out, " # %8.3f %% of all cache refs ", ratio);
+
+ } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
+ print_stalled_cycles_frontend(out, cpu, evsel, avg);
+ } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
+ print_stalled_cycles_backend(out, cpu, evsel, avg);
+ } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
+ total = avg_stats(&runtime_nsecs_stats[cpu]);
+
+ if (total) {
+ ratio = avg / total;
+ fprintf(out, " # %8.3f GHz ", ratio);
+ } else {
+ fprintf(out, " ");
+ }
+ } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) {
+ total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+ if (total)
+ fprintf(out,
+ " # %5.2f%% transactional cycles ",
+ 100.0 * (avg / total));
+ } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) {
+ total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+ total2 = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
+ if (total2 < avg)
+ total2 = avg;
+ if (total)
+ fprintf(out,
+ " # %5.2f%% aborted cycles ",
+ 100.0 * ((total2-avg) / total));
+ } else if (perf_stat_evsel__is(evsel, TRANSACTION_START) &&
+ avg > 0 &&
+ runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
+ total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
+
+ if (total)
+ ratio = total / avg;
+
+ fprintf(out, " # %8.0f cycles / transaction ", ratio);
+ } else if (perf_stat_evsel__is(evsel, ELISION_START) &&
+ avg > 0 &&
+ runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
+ total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
+
+ if (total)
+ ratio = total / avg;
+
+ fprintf(out, " # %8.0f cycles / elision ", ratio);
+ } else if (runtime_nsecs_stats[cpu].n != 0) {
+ char unit = 'M';
+
+ total = avg_stats(&runtime_nsecs_stats[cpu]);
+
+ if (total)
+ ratio = 1000.0 * avg / total;
+ if (ratio < 0.001) {
+ ratio *= 1000;
+ unit = 'K';
+ }
+
+ fprintf(out, " # %8.3f %c/sec ", ratio, unit);
+ } else {
+ fprintf(out, " ");
+ }
+}
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