source: libcfa/src/concurrency/stats.hfa@ c7015e6b

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since c7015e6b was d2fadeb, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Changed stats to make sense with relaxed fifo and work stealing
  • Property mode set to 100644
File size: 3.5 KB
Line 
1#pragma once
2
3// #define CFA_STATS_ARRAY 10000
4
5#include <stdint.h>
6
7enum {
8 CFA_STATS_READY_Q = 0x01,
9 CFA_STATS_IO = 0x02,
10};
11
12#if defined(__CFA_NO_STATISTICS__)
13 struct __stats_t;
14 static inline void __init_stats( struct __stats_t * ) {}
15 static inline void __tally_stats( struct __stats_t *, struct __stats_t * ) {}
16 static inline void __print_stats( struct __stats_t *, int, const char *, const char *, void * ) {}
17#else
18 struct __stats_readyQ_pop_t {
19 // number of attemps at poping something
20 volatile uint64_t attempt;
21
22 // number of successes at poping
23 volatile uint64_t success;
24
25 // number of attempts failed due to the lock being held
26 volatile uint64_t elock;
27
28 // number of attempts failed due to the queue being empty (lock held)
29 volatile uint64_t eempty;
30
31 // number of attempts failed due to the queue looking empty (lock not held)
32 volatile uint64_t espec;
33 };
34
35 struct __attribute__((aligned(64))) __stats_readyQ_t {
36 // Push statistic
37 struct {
38 struct {
39 // number of attemps at pushing something to preferred queues
40 volatile uint64_t attempt;
41
42 // number of successes at pushing to preferred queues
43 volatile uint64_t success;
44 }
45 // Stats for local queue within cluster
46 local,
47
48 // Stats for non-local queues within cluster
49 share,
50
51 // Stats from outside cluster
52 extrn;
53 } push;
54
55 // Pop statistic
56 struct {
57 // pop from local queue
58 __stats_readyQ_pop_t local;
59
60 // pop before looking at local queue
61 __stats_readyQ_pop_t help;
62
63 // pop from some other queue
64 __stats_readyQ_pop_t steal;
65
66 // pop when searching queues sequentially
67 __stats_readyQ_pop_t search;
68 } pop;
69
70 struct {
71 volatile uint64_t migration;
72 volatile int64_t threads; // number of threads in the system, includes only local change
73 } threads;
74 struct {
75 volatile uint64_t halts;
76 volatile uint64_t cancels;
77 volatile uint64_t wakes;
78 volatile uint64_t exits;
79 } sleep;
80 };
81
82 #if defined(CFA_HAVE_LINUX_IO_URING_H)
83 struct __attribute__((aligned(64))) __stats_io_t{
84 struct {
85 volatile uint64_t fast;
86 volatile uint64_t slow;
87 volatile uint64_t fail;
88 volatile uint64_t revoke;
89 volatile uint64_t block;
90 } alloc;
91 struct {
92 volatile uint64_t fast;
93 volatile uint64_t slow;
94 } submit;
95 struct {
96 volatile uint64_t external;
97 } flush;
98 struct {
99 volatile uint64_t drain;
100 volatile uint64_t completed;
101 volatile uint64_t flush;
102 volatile uint64_t submitted;
103 struct {
104 volatile uint64_t busy;
105 } errors;
106 } calls;
107 struct {
108 volatile uint64_t sleeps;
109 } poller;
110 };
111 #endif
112
113 #if defined(CFA_STATS_ARRAY)
114 struct __stats_elem_t {
115 long long int ts;
116 int64_t value;
117 };
118 #endif
119
120 struct __attribute__((aligned(128))) __stats_t {
121 __stats_readyQ_t ready;
122 #if defined(CFA_HAVE_LINUX_IO_URING_H)
123 __stats_io_t io;
124 #endif
125
126 #if defined(CFA_STATS_ARRAY)
127 struct {
128 __stats_elem_t * values;
129 volatile size_t cnt;
130 } array;
131 #endif
132
133 };
134
135 void __init_stats ( struct __stats_t * );
136 void __tally_stats( struct __stats_t *, struct __stats_t * );
137 void __print_stats( struct __stats_t *, int, const char *, const char *, void * );
138 #if defined(CFA_STATS_ARRAY)
139 void __push_stat ( struct __stats_t *, int64_t value, bool external, const char * name, void * handle);
140 void __flush_stat( struct __stats_t *, const char *, void * );
141 #else
142 static inline void __push_stat ( struct __stats_t *, int64_t, bool, const char *, void * ) {}
143 static inline void __flush_stat( struct __stats_t *, const char *, void * ) {}
144 #endif
145#endif
146
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