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287f2649f7
Some metrics define the scale unit, such as
{
"BriefDescription": "Intel Optane DC persistent memory read latency (ns). Derived from unc_m_pmm_rpq_occupancy.all",
"Counter": "0,1,2,3",
"EventCode": "0xE0",
"EventName": "UNC_M_PMM_READ_LATENCY",
"MetricExpr": "UNC_M_PMM_RPQ_OCCUPANCY.ALL / UNC_M_PMM_RPQ_INSERTS / UNC_M_CLOCKTICKS",
"MetricName": "UNC_M_PMM_READ_LATENCY",
"PerPkg": "1",
"ScaleUnit": "6000000000ns",
"UMask": "0x1",
"Unit": "iMC"
},
For above example, the ratio should be,
ratio = (UNC_M_PMM_RPQ_OCCUPANCY.ALL / UNC_M_PMM_RPQ_INSERTS / UNC_M_CLOCKTICKS) * 6000000000
But in current code, the ratio is not scaled ( * 6000000000)
With this patch, the ratio is scaled and the unit (ns) is printed.
For example,
# 219.4 ns UNC_M_PMM_READ_LATENCY
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190828055932.8269-4-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
37 lines
858 B
C
37 lines
858 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#ifndef METRICGROUP_H
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#define METRICGROUP_H 1
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <stdbool.h>
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struct evsel;
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struct option;
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struct rblist;
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struct metric_event {
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struct rb_node nd;
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struct evsel *evsel;
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struct list_head head; /* list of metric_expr */
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};
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struct metric_expr {
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struct list_head nd;
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const char *metric_expr;
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const char *metric_name;
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const char *metric_unit;
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struct evsel **metric_events;
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};
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struct metric_event *metricgroup__lookup(struct rblist *metric_events,
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struct evsel *evsel,
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bool create);
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int metricgroup__parse_groups(const struct option *opt,
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const char *str,
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struct rblist *metric_events);
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void metricgroup__print(bool metrics, bool groups, char *filter,
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bool raw, bool details);
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bool metricgroup__has_metric(const char *metric);
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#endif
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