source: libcfa/src/concurrency/stats.hfa@ ec43cf9

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 ec43cf9 was ec43cf9, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Kernel now keeps track of the how many threads each processor has contributed.
This isn't useful if it is not sampled regularly but it's a first step.
  • Property mode set to 100644
File size: 3.0 KB
Line 
1#pragma once
2
3#include <stdint.h>
4
5enum {
6 CFA_STATS_READY_Q = 0x01,
7 CFA_STATS_IO = 0x02,
8};
9
10#if defined(__CFA_NO_STATISTICS__)
11 struct __stats_t;
12 static inline void __init_stats( struct __stats_t * ) {}
13 static inline void __tally_stats( struct __stats_t *, struct __stats_t * ) {}
14 static inline void __print_stats( struct __stats_t *, int, const char *, const char *, void * ) {}
15#else
16
17 struct __attribute__((aligned(64))) __stats_readQ_t {
18 struct {
19 // Push statistic
20 struct {
21 // number of attemps at pushing something
22 volatile uint64_t attempt;
23
24 // number of successes at pushing
25 volatile uint64_t success;
26
27 // number of attemps at pushing something to preferred queues
28 volatile uint64_t local;
29
30 // number of successes at pushing to preferred queues
31 volatile uint64_t lsuccess;
32 } push;
33
34 struct {
35 // number of attemps at pushing something
36 volatile uint64_t attempt;
37
38 // number of successes at pushing
39 volatile uint64_t success;
40
41 // number of attemps at pushing something to preferred queues
42 volatile uint64_t local;
43
44 // number of successes at pushing to preferred queues
45 volatile uint64_t lsuccess;
46 } ext;
47
48 // Pop statistic
49 struct {
50 // number of reads of the mask
51 // picking an empty __cfa_readyQ_mask_t counts here
52 // but not as an attempt
53 volatile uint64_t probe;
54
55 // number of attemps at poping something
56 volatile uint64_t attempt;
57
58 // number of successes at poping
59 volatile uint64_t success;
60
61 // number of attemps at poping something to preferred queues
62 volatile uint64_t local;
63
64 // number of successes at poping to preferred queues
65 volatile uint64_t lsuccess;
66 } pop;
67 } pick;
68 struct {
69 volatile uint64_t migration;
70 volatile int64_t threads; // number of threads in the system, includes only local change
71 } threads;
72 struct {
73 volatile uint64_t halts;
74 volatile uint64_t cancels;
75 volatile uint64_t wakes;
76 volatile uint64_t exits;
77 } sleep;
78 };
79
80 #if defined(CFA_HAVE_LINUX_IO_URING_H)
81 struct __attribute__((aligned(64))) __stats_io_t{
82 struct {
83 volatile uint64_t fast;
84 volatile uint64_t slow;
85 volatile uint64_t fail;
86 volatile uint64_t revoke;
87 volatile uint64_t block;
88 } alloc;
89 struct {
90 volatile uint64_t fast;
91 volatile uint64_t slow;
92 } submit;
93 struct {
94 volatile uint64_t external;
95 } flush;
96 struct {
97 volatile uint64_t drain;
98 volatile uint64_t completed;
99 volatile uint64_t flush;
100 volatile uint64_t submitted;
101 struct {
102 volatile uint64_t busy;
103 } errors;
104 } calls;
105 struct {
106 volatile uint64_t sleeps;
107 } poller;
108 };
109 #endif
110
111 struct __attribute__((aligned(128))) __stats_t {
112 __stats_readQ_t ready;
113 #if defined(CFA_HAVE_LINUX_IO_URING_H)
114 __stats_io_t io;
115 #endif
116 };
117
118 void __init_stats ( struct __stats_t * );
119 void __tally_stats( struct __stats_t *, struct __stats_t * );
120 void __print_stats( struct __stats_t *, int, const char *, const char *, void * );
121#endif
122
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