1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/* os.h
* Part of xfce4-cpugraph-plugin
*
* Copyright (c) Alexander Nordfelth <alex.nordfelth@telia.com>
* Copyright (c) gatopeich <gatoguan-os@yahoo.com>
* Copyright (c) 2007-2008 Angelo Arrifano <miknix@gmail.com>
* Copyright (c) 2007-2008 Lidiriel <lidiriel@coriolys.org>
* Copyright (c) 2010 Florian Rivoal <frivoal@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _XFCE_CPUGRAPH_OS_H_
#define _XFCE_CPUGRAPH_OS_H_
#include <glib.h>
#include <unordered_map>
#include <vector>
#include <memory>
struct CpuData
{
/* Range of float values: from 0.0 to 1.0 */
gfloat load; /* Overall CPU load: user + system + nice */
guint64 previous_used;
guint64 previous_total;
bool smt_highlight;
/* Detailed CPU load */
gfloat system;
gfloat user;
gfloat nice;
gfloat iowait;
guint64 previous_system;
guint64 previous_user;
guint64 previous_nice;
guint64 previous_iowait;
};
struct CpuStats
{
guint num_smt_incidents;
struct {
/* Estimated performance loss (%): 100 * (optimal - actual) / actual */
struct {
gdouble actual, optimal;
} during_smt_incidents;
struct {
gdouble actual, optimal;
} total;
} num_instructions_executed;
};
struct Topology
{
guint num_logical_cpus;
guint num_online_logical_cpus;
guint num_cores; /* Range: <1, num_logical_cpus> */
guint num_online_cores; /* Range: <1, num_online_logical_cpus> */
std::vector<gint> logical_cpu_2_core; /* Maps a logical CPU to its core, or to -1 if offline */
struct CpuCore {
std::vector<guint> logical_cpus; /* Logical CPUs in this core. Empty if the core is offline. */
};
/* Maps a core ID to a CpuCore. The core ID can be larger than num_cores,
* for example in case of a 6-core CPU on an 8-core die (2 cores are disabled). */
std::unordered_map<guint, CpuCore> cores;
bool smt; /* Simultaneous multi-threading (hyper-threading) */
gdouble smt_ratio; /* Equals to (num_online_logical_cpus / num_online_cores), >= 1.0 */
};
void read_cpu_data (std::unordered_map<guint, CpuData> &data, std::unordered_map<guint, guint> &cpu_to_index);
std::unique_ptr<Topology> read_topology ();
#endif /* _XFCE_CPUGRAPH_OS_H */
|
