source: libcfa/src/concurrency/stats.hfa@ 6b2d444

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum stuck-waitfor-destruct
Last change on this file since 6b2d444 was 7cf3b1d, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Added level of indirection to idle sleeps which helps statistics.
  • Property mode set to 100644
File size: 3.6 KB
Line 
1#pragma once
2
3// #define CFA_STATS_ARRAY 10000
4// #define __CFA_NO_STATISTICS__
5
6#include <stdint.h>
7
8enum {
9 CFA_STATS_READY_Q = 0x01,
10 CFA_STATS_IO = 0x02,
11};
12
13#if defined(__CFA_NO_STATISTICS__)
14 struct __stats_t;
15 static inline void __init_stats( struct __stats_t * ) {}
16 static inline void __tally_stats( struct __stats_t *, struct __stats_t * ) {}
17 static inline void __print_stats( struct __stats_t *, int, const char *, const char *, void * ) {}
18#else
19 struct __stats_readyQ_pop_t {
20 // number of attemps at poping something
21 volatile uint64_t attempt;
22
23 // number of successes at poping
24 volatile uint64_t success;
25 };
26
27 struct __attribute__((aligned(64))) __stats_readyQ_t {
28 // Push statistic
29 struct {
30 struct {
31 // number of attemps at pushing something to preferred queues
32 volatile uint64_t attempt;
33
34 // number of successes at pushing to preferred queues
35 volatile uint64_t success;
36 }
37 // Stats for local queue within cluster
38 local,
39
40 // Stats for non-local queues within cluster
41 share,
42
43 // Stats from outside cluster
44 extrn;
45 } push;
46
47 // Pop statistic
48 struct {
49 // pop from local queue
50 __stats_readyQ_pop_t local;
51
52 // pop before looking at local queue
53 __stats_readyQ_pop_t help;
54
55 // pop from some other queue
56 __stats_readyQ_pop_t steal;
57
58 // pop when searching queues sequentially
59 __stats_readyQ_pop_t search;
60 } pop;
61
62 struct {
63 volatile uint64_t migration;
64 volatile uint64_t extunpark;
65 volatile int64_t threads; // number of threads in the system, includes only local change
66 volatile int64_t cthreads; // number of threads in the system, includes only local change
67 } threads;
68 struct {
69 volatile uint64_t halts;
70 volatile uint64_t cancels;
71 volatile uint64_t early;
72 volatile uint64_t wakes;
73 volatile uint64_t seen;
74 volatile uint64_t exits;
75 } sleep;
76 };
77
78 #if defined(CFA_HAVE_LINUX_IO_URING_H)
79 struct __attribute__((aligned(64))) __stats_io_t{
80 struct {
81 volatile uint64_t fast;
82 volatile uint64_t slow;
83 volatile uint64_t fail;
84 volatile uint64_t revoke;
85 volatile uint64_t block;
86 } alloc;
87 struct {
88 volatile uint64_t fast;
89 volatile uint64_t slow;
90 } submit;
91 struct {
92 volatile uint64_t external;
93 } flush;
94 struct {
95 volatile uint64_t drain;
96 volatile uint64_t completed;
97 volatile uint64_t flush;
98 volatile uint64_t submitted;
99 struct {
100 volatile uint64_t busy;
101 } errors;
102 } calls;
103 struct {
104 volatile uint64_t sleeps;
105 } poller;
106 struct {
107 volatile uint64_t sockread;
108 volatile uint64_t epllread;
109 volatile uint64_t sockwrite;
110 volatile uint64_t epllwrite;
111 } ops;
112 };
113 #endif
114
115 #if defined(CFA_STATS_ARRAY)
116 struct __stats_elem_t {
117 long long int ts;
118 int64_t value;
119 };
120 #endif
121
122 struct __attribute__((aligned(128))) __stats_t {
123 __stats_readyQ_t ready;
124 #if defined(CFA_HAVE_LINUX_IO_URING_H)
125 __stats_io_t io;
126 #endif
127
128 #if defined(CFA_STATS_ARRAY)
129 struct {
130 __stats_elem_t * values;
131 volatile size_t cnt;
132 } array;
133 #endif
134
135 };
136
137 void __init_stats ( struct __stats_t * );
138 void __tally_stats( struct __stats_t *, struct __stats_t * );
139 void __print_stats( struct __stats_t *, int, const char *, const char *, void * );
140 #if defined(CFA_STATS_ARRAY)
141 void __push_stat ( struct __stats_t *, int64_t value, bool external, const char * name, void * handle);
142 void __flush_stat( struct __stats_t *, const char *, void * );
143 #else
144 static inline void __push_stat ( struct __stats_t *, int64_t, bool, const char *, void * ) {}
145 static inline void __flush_stat( struct __stats_t *, const char *, void * ) {}
146 #endif
147#endif
148
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