#include "iostat.h"
#include "util/hashmap.h"
-/*
- * AGGR_GLOBAL: Use CPU 0
- * AGGR_SOCKET: Use first CPU of socket
- * AGGR_DIE: Use first CPU of die
- * AGGR_CORE: Use first CPU of core
- * AGGR_NONE: Use matching CPU
- * AGGR_THREAD: Not supported?
- */
-
struct stats walltime_nsecs_stats;
struct rusage_stats ru_stats;
-static struct runtime_stat {
- struct rblist value_list;
-} rt_stat;
-
enum {
CTX_BIT_USER = 1 << 0,
CTX_BIT_KERNEL = 1 << 1,
STAT_MAX
};
-struct saved_value {
- struct rb_node rb_node;
- struct evsel *evsel;
- enum stat_type type;
- int ctx;
- int map_idx; /* cpu or thread map index */
- struct cgroup *cgrp;
- struct stats stats;
- u64 metric_total;
- int metric_other;
-};
-
-static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
-{
- struct saved_value *a = container_of(rb_node,
- struct saved_value,
- rb_node);
- const struct saved_value *b = entry;
-
- if (a->map_idx != b->map_idx)
- return a->map_idx - b->map_idx;
-
- /*
- * Previously the rbtree was used to link generic metrics.
- * The keys were evsel/cpu. Now the rbtree is extended to support
- * per-thread shadow stats. For shadow stats case, the keys
- * are cpu/type/ctx/stat (evsel is NULL). For generic metrics
- * case, the keys are still evsel/cpu (type/ctx/stat are 0 or NULL).
- */
- if (a->type != b->type)
- return a->type - b->type;
-
- if (a->ctx != b->ctx)
- return a->ctx - b->ctx;
-
- if (a->cgrp != b->cgrp)
- return (char *)a->cgrp < (char *)b->cgrp ? -1 : +1;
-
- if (a->evsel == b->evsel)
- return 0;
- if ((char *)a->evsel < (char *)b->evsel)
- return -1;
- return +1;
-}
-
-static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
- const void *entry)
-{
- struct saved_value *nd = malloc(sizeof(struct saved_value));
-
- if (!nd)
- return NULL;
- memcpy(nd, entry, sizeof(struct saved_value));
- return &nd->rb_node;
-}
-
-static void saved_value_delete(struct rblist *rblist __maybe_unused,
- struct rb_node *rb_node)
-{
- struct saved_value *v;
-
- BUG_ON(!rb_node);
- v = container_of(rb_node, struct saved_value, rb_node);
- free(v);
-}
-
-static struct saved_value *saved_value_lookup(struct evsel *evsel,
- int map_idx,
- bool create,
- enum stat_type type,
- int ctx,
- struct cgroup *cgrp)
-{
- struct rblist *rblist;
- struct rb_node *nd;
- struct saved_value dm = {
- .map_idx = map_idx,
- .evsel = evsel,
- .type = type,
- .ctx = ctx,
- .cgrp = cgrp,
- };
-
- rblist = &rt_stat.value_list;
-
- /* don't use context info for clock events */
- if (type == STAT_NSECS)
- dm.ctx = 0;
-
- nd = rblist__find(rblist, &dm);
- if (nd)
- return container_of(nd, struct saved_value, rb_node);
- if (create) {
- rblist__add_node(rblist, &dm);
- nd = rblist__find(rblist, &dm);
- if (nd)
- return container_of(nd, struct saved_value, rb_node);
- }
- return NULL;
-}
-
-void perf_stat__init_shadow_stats(void)
-{
- struct rblist *rblist = &rt_stat.value_list;
-
- rblist__init(rblist);
- rblist->node_cmp = saved_value_cmp;
- rblist->node_new = saved_value_new;
- rblist->node_delete = saved_value_delete;
-}
-
static int evsel_context(const struct evsel *evsel)
{
int ctx = 0;
return ctx;
}
-void perf_stat__reset_shadow_per_stat(void)
-{
- struct rblist *rblist;
- struct rb_node *pos, *next;
-
- rblist = &rt_stat.value_list;
- next = rb_first_cached(&rblist->entries);
- while (next) {
- pos = next;
- next = rb_next(pos);
- memset(&container_of(pos, struct saved_value, rb_node)->stats,
- 0,
- sizeof(struct stats));
- }
-}
-
void perf_stat__reset_shadow_stats(void)
{
- perf_stat__reset_shadow_per_stat();
memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
memset(&ru_stats, 0, sizeof(ru_stats));
}
-struct runtime_stat_data {
- int ctx;
- struct cgroup *cgrp;
-};
-
-static void update_runtime_stat(enum stat_type type,
- int map_idx, u64 count,
- struct runtime_stat_data *rsd)
-{
- struct saved_value *v = saved_value_lookup(NULL, map_idx, true, type,
- rsd->ctx, rsd->cgrp);
-
- if (v)
- update_stats(&v->stats, count);
-}
-
-/*
- * 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 evsel *counter, u64 count,
- int aggr_idx)
-{
- u64 count_ns = count;
- struct runtime_stat_data rsd = {
- .ctx = evsel_context(counter),
- .cgrp = counter->cgrp,
- };
- count *= counter->scale;
-
- if (evsel__is_clock(counter))
- update_runtime_stat(STAT_NSECS, aggr_idx, count_ns, &rsd);
- else if (evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
- update_runtime_stat(STAT_CYCLES, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
- update_runtime_stat(STAT_STALLED_CYCLES_FRONT,
- aggr_idx, count, &rsd);
- else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
- update_runtime_stat(STAT_STALLED_CYCLES_BACK,
- aggr_idx, count, &rsd);
- else if (evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
- update_runtime_stat(STAT_BRANCHES, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
- update_runtime_stat(STAT_CACHE_REFS, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
- update_runtime_stat(STAT_L1_DCACHE, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
- update_runtime_stat(STAT_L1_ICACHE, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HW_CACHE, HW_CACHE_LL))
- update_runtime_stat(STAT_LL_CACHE, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
- update_runtime_stat(STAT_DTLB_CACHE, aggr_idx, count, &rsd);
- else if (evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
- update_runtime_stat(STAT_ITLB_CACHE, aggr_idx, count, &rsd);
-}
-
static enum stat_type evsel__stat_type(const struct evsel *evsel)
{
/* Fake perf_hw_cache_op_id values for use with evsel__match. */
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