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9aba0adae8
Events like uncore_imc/cas_count_read/ on Skylake open multiple events and then aggregate in the metric leader. To determine the average value per event the number of these events is needed. Add a source_count function that returns this value by counting the number of events with the given metric leader. For most events the value is 1 but for uncore_imc/cas_count_read/ it can yield values like 6. Add a generic test, but manually tested with a test metric that uses the function. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul A . Clarke <pc@us.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <song@kernel.org> Cc: Wan Jiabing <wanjiabing@vivo.com> Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/r/20211111002109.194172-9-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
63 lines
2 KiB
C
63 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef PARSE_CTX_H
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#define PARSE_CTX_H 1
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// There are fixes that need to land upstream before we can use libbpf's headers,
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// for now use our copy unconditionally, since the data structures at this point
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// are exactly the same, no problem.
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//#ifdef HAVE_LIBBPF_SUPPORT
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//#include <bpf/hashmap.h>
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//#else
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#include "util/hashmap.h"
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//#endif
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struct metric_ref;
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struct expr_parse_ctx {
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struct hashmap *ids;
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int runtime;
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};
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struct expr_id_data;
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struct expr_scanner_ctx {
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int runtime;
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};
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struct hashmap *ids__new(void);
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void ids__free(struct hashmap *ids);
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int ids__insert(struct hashmap *ids, const char *id);
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/*
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* Union two sets of ids (hashmaps) and construct a third, freeing ids1 and
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* ids2.
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*/
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struct hashmap *ids__union(struct hashmap *ids1, struct hashmap *ids2);
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struct expr_parse_ctx *expr__ctx_new(void);
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void expr__ctx_clear(struct expr_parse_ctx *ctx);
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void expr__ctx_free(struct expr_parse_ctx *ctx);
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void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
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int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id,
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double val, int source_count);
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int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
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int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **data);
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bool expr__subset_of_ids(struct expr_parse_ctx *haystack,
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struct expr_parse_ctx *needles);
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int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **datap);
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int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
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const char *expr);
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int expr__find_ids(const char *expr, const char *one,
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struct expr_parse_ctx *ids);
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double expr_id_data__value(const struct expr_id_data *data);
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double expr_id_data__source_count(const struct expr_id_data *data);
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double expr__get_literal(const char *literal);
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#endif
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