source: libcfa/src/concurrency/stats.cfa@ 857a1c6

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 857a1c6 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: 9.2 KB
Line 
1#include <stdint.h>
2#include <stdlib.hfa>
3
4#include <unistd.h> // STDERR_FILENO
5#include <inttypes.h>
6#include "bits/debug.hfa"
7#include "stats.hfa"
8
9#if !defined(__CFA_NO_STATISTICS__)
10 void __init_stats( struct __stats_t * stats ) {
11 stats->ready.pick.push.attempt = 0;
12 stats->ready.pick.push.success = 0;
13 stats->ready.pick.push.local = 0;
14 stats->ready.pick.push.lsuccess = 0;
15 stats->ready.pick.ext.attempt = 0;
16 stats->ready.pick.ext.success = 0;
17 stats->ready.pick.ext.local = 0;
18 stats->ready.pick.ext.lsuccess = 0;
19 stats->ready.pick.pop .probe = 0;
20 stats->ready.pick.pop .attempt = 0;
21 stats->ready.pick.pop .success = 0;
22 stats->ready.pick.pop .local = 0;
23 stats->ready.pick.pop .lsuccess = 0;
24 stats->ready.threads.migration = 0;
25 stats->ready.threads.threads = 0;
26 stats->ready.sleep.halts = 0;
27 stats->ready.sleep.cancels = 0;
28 stats->ready.sleep.wakes = 0;
29 stats->ready.sleep.exits = 0;
30
31 #if defined(CFA_HAVE_LINUX_IO_URING_H)
32 stats->io.alloc.fast = 0;
33 stats->io.alloc.slow = 0;
34 stats->io.alloc.fail = 0;
35 stats->io.alloc.revoke = 0;
36 stats->io.alloc.block = 0;
37 stats->io.submit.fast = 0;
38 stats->io.submit.slow = 0;
39 stats->io.flush.external = 0;
40 stats->io.calls.flush = 0;
41 stats->io.calls.submitted = 0;
42 stats->io.calls.drain = 0;
43 stats->io.calls.completed = 0;
44 stats->io.calls.errors.busy = 0;
45 stats->io.poller.sleeps = 0;
46 #endif
47 }
48
49 void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
50 __atomic_fetch_add( &cltr->ready.pick.push.attempt , proc->ready.pick.push.attempt , __ATOMIC_SEQ_CST ); proc->ready.pick.push.attempt = 0;
51 __atomic_fetch_add( &cltr->ready.pick.push.success , proc->ready.pick.push.success , __ATOMIC_SEQ_CST ); proc->ready.pick.push.success = 0;
52 __atomic_fetch_add( &cltr->ready.pick.push.local , proc->ready.pick.push.local , __ATOMIC_SEQ_CST ); proc->ready.pick.push.local = 0;
53 __atomic_fetch_add( &cltr->ready.pick.push.lsuccess, proc->ready.pick.push.lsuccess, __ATOMIC_SEQ_CST ); proc->ready.pick.push.lsuccess = 0;
54 __atomic_fetch_add( &cltr->ready.pick.ext.attempt , proc->ready.pick.ext.attempt , __ATOMIC_SEQ_CST ); proc->ready.pick.ext.attempt = 0;
55 __atomic_fetch_add( &cltr->ready.pick.ext.success , proc->ready.pick.ext.success , __ATOMIC_SEQ_CST ); proc->ready.pick.ext.success = 0;
56 __atomic_fetch_add( &cltr->ready.pick.ext.local , proc->ready.pick.ext.local , __ATOMIC_SEQ_CST ); proc->ready.pick.ext.local = 0;
57 __atomic_fetch_add( &cltr->ready.pick.ext.lsuccess , proc->ready.pick.ext.lsuccess , __ATOMIC_SEQ_CST ); proc->ready.pick.ext.lsuccess = 0;
58 __atomic_fetch_add( &cltr->ready.pick.pop .probe , proc->ready.pick.pop .probe , __ATOMIC_SEQ_CST ); proc->ready.pick.pop .probe = 0;
59 __atomic_fetch_add( &cltr->ready.pick.pop .attempt , proc->ready.pick.pop .attempt , __ATOMIC_SEQ_CST ); proc->ready.pick.pop .attempt = 0;
60 __atomic_fetch_add( &cltr->ready.pick.pop .success , proc->ready.pick.pop .success , __ATOMIC_SEQ_CST ); proc->ready.pick.pop .success = 0;
61 __atomic_fetch_add( &cltr->ready.pick.pop .local , proc->ready.pick.pop .local , __ATOMIC_SEQ_CST ); proc->ready.pick.pop .local = 0;
62 __atomic_fetch_add( &cltr->ready.pick.pop .lsuccess, proc->ready.pick.pop .lsuccess, __ATOMIC_SEQ_CST ); proc->ready.pick.pop .lsuccess = 0;
63 __atomic_fetch_add( &cltr->ready.threads.migration , proc->ready.threads.migration , __ATOMIC_SEQ_CST ); proc->ready.threads.migration = 0;
64 __atomic_fetch_add( &cltr->ready.threads.threads , proc->ready.threads.threads , __ATOMIC_SEQ_CST ); proc->ready.threads.threads = 0;
65 __atomic_fetch_add( &cltr->ready.sleep.halts , proc->ready.sleep.halts , __ATOMIC_SEQ_CST ); proc->ready.sleep.halts = 0;
66 __atomic_fetch_add( &cltr->ready.sleep.cancels , proc->ready.sleep.cancels , __ATOMIC_SEQ_CST ); proc->ready.sleep.cancels = 0;
67 __atomic_fetch_add( &cltr->ready.sleep.wakes , proc->ready.sleep.wakes , __ATOMIC_SEQ_CST ); proc->ready.sleep.wakes = 0;
68 __atomic_fetch_add( &cltr->ready.sleep.exits , proc->ready.sleep.exits , __ATOMIC_SEQ_CST ); proc->ready.sleep.exits = 0;
69
70 #if defined(CFA_HAVE_LINUX_IO_URING_H)
71 __atomic_fetch_add( &cltr->io.alloc.fast , proc->io.alloc.fast , __ATOMIC_SEQ_CST ); proc->io.alloc.fast = 0;
72 __atomic_fetch_add( &cltr->io.alloc.slow , proc->io.alloc.slow , __ATOMIC_SEQ_CST ); proc->io.alloc.slow = 0;
73 __atomic_fetch_add( &cltr->io.alloc.fail , proc->io.alloc.fail , __ATOMIC_SEQ_CST ); proc->io.alloc.fail = 0;
74 __atomic_fetch_add( &cltr->io.alloc.revoke , proc->io.alloc.revoke , __ATOMIC_SEQ_CST ); proc->io.alloc.revoke = 0;
75 __atomic_fetch_add( &cltr->io.alloc.block , proc->io.alloc.block , __ATOMIC_SEQ_CST ); proc->io.alloc.block = 0;
76 __atomic_fetch_add( &cltr->io.submit.fast , proc->io.submit.fast , __ATOMIC_SEQ_CST ); proc->io.submit.fast = 0;
77 __atomic_fetch_add( &cltr->io.submit.slow , proc->io.submit.slow , __ATOMIC_SEQ_CST ); proc->io.submit.slow = 0;
78 __atomic_fetch_add( &cltr->io.flush.external , proc->io.flush.external , __ATOMIC_SEQ_CST ); proc->io.flush.external = 0;
79 __atomic_fetch_add( &cltr->io.calls.flush , proc->io.calls.flush , __ATOMIC_SEQ_CST ); proc->io.calls.flush = 0;
80 __atomic_fetch_add( &cltr->io.calls.submitted , proc->io.calls.submitted , __ATOMIC_SEQ_CST ); proc->io.calls.submitted = 0;
81 __atomic_fetch_add( &cltr->io.calls.drain , proc->io.calls.drain , __ATOMIC_SEQ_CST ); proc->io.calls.drain = 0;
82 __atomic_fetch_add( &cltr->io.calls.completed , proc->io.calls.completed , __ATOMIC_SEQ_CST ); proc->io.calls.completed = 0;
83 __atomic_fetch_add( &cltr->io.calls.errors.busy, proc->io.calls.errors.busy, __ATOMIC_SEQ_CST ); proc->io.calls.errors.busy = 0;
84 __atomic_fetch_add( &cltr->io.poller.sleeps , proc->io.poller.sleeps , __ATOMIC_SEQ_CST ); proc->io.poller.sleeps = 0;
85 #endif
86 }
87
88 void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
89
90 if( flags & CFA_STATS_READY_Q ) {
91 double push_len = ((double)ready.pick.push.attempt) / ready.pick.push.success;
92 double ext_len = ((double)ready.pick.ext .attempt) / ready.pick.ext .success;
93 double pop_len = ((double)ready.pick.pop .attempt) / ready.pick.pop .success;
94
95 double lpush_len = ((double)ready.pick.push.local) / ready.pick.push.lsuccess;
96 double lext_len = ((double)ready.pick.ext .local) / ready.pick.ext .lsuccess;
97 double lpop_len = ((double)ready.pick.pop .local) / ready.pick.pop .lsuccess;
98
99 __cfaabi_bits_print_safe( STDOUT_FILENO,
100 "----- %s \"%s\" (%p) - Ready Q Stats -----\n"
101 "- total threads : %'15" PRIu64 "run, %'15" PRIu64 "schd (%'" PRIu64 "ext, %'" PRIu64 "mig, %'" PRId64 " )\n"
102 "- push avg probe : %'3.2lf, %'3.2lfl (%'15" PRIu64 " attempts, %'15" PRIu64 " locals)\n"
103 "- ext avg probe : %'3.2lf, %'3.2lfl (%'15" PRIu64 " attempts, %'15" PRIu64 " locals)\n"
104 "- pop avg probe : %'3.2lf, %'3.2lfl (%'15" PRIu64 " attempts, %'15" PRIu64 " locals)\n"
105 "- Idle Sleep : %'15" PRIu64 "h, %'15" PRIu64 "c, %'15" PRIu64 "w, %'15" PRIu64 "e\n"
106 "\n"
107 , type, name, id
108 , ready.pick.pop.success
109 , ready.pick.push.success + ready.pick.ext.success
110 , ready.pick.ext.success, ready.threads.migration, ready.threads.threads
111 , push_len, lpush_len, ready.pick.push.attempt, ready.pick.push.local
112 , ext_len , lext_len , ready.pick.ext .attempt, ready.pick.ext .local
113 , pop_len , lpop_len , ready.pick.pop .attempt, ready.pick.pop .local
114 , ready.sleep.halts, ready.sleep.cancels, ready.sleep.wakes, ready.sleep.exits
115 );
116 }
117
118 #if defined(CFA_HAVE_LINUX_IO_URING_H)
119 if( flags & CFA_STATS_IO ) {
120 uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
121 double avgfasta = ((double)io.alloc.fast) / total_allocs;
122
123 uint64_t total_submits = io.submit.fast + io.submit.slow;
124 double avgfasts = ((double)io.submit.fast) / total_submits;
125
126 double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
127 double avgcomp = ((double)io.calls.completed) / io.calls.drain;
128
129 __cfaabi_bits_print_safe( STDOUT_FILENO,
130 "----- %s \"%s\" (%p) - I/O Stats -----\n"
131 "- total allocations : %'" PRIu64 "f, %'" PRIu64 "s (%'2.2lff) \n"
132 "- failures : %'" PRIu64 "oom, %'" PRIu64 "rvk, %'" PRIu64 "blk\n"
133 "- total submits : %'" PRIu64 "f, %'" PRIu64 "s (%'2.2lf) \n"
134 "- flush external : %'" PRIu64 "\n"
135 "- io_uring_enter : %'" PRIu64 " (%'" PRIu64 ", %'" PRIu64 " EBUSY)\n"
136 "- submits : %'" PRIu64 " (%'.2lf) \n"
137 "- completes : %'" PRIu64 " (%'.2lf) \n"
138 "- poller sleeping : %'" PRIu64 "\n"
139 "\n"
140 , type, name, id
141 , io.alloc.fast, io.alloc.slow, avgfasta
142 , io.alloc.fail, io.alloc.revoke, io.alloc.block
143 , io.submit.fast, io.submit.slow, avgfasts
144 , io.flush.external
145 , io.calls.flush, io.calls.drain, io.calls.errors.busy
146 , io.calls.submitted, avgsubs
147 , io.calls.completed, avgcomp
148 , io.poller.sleeps
149 );
150 }
151 #endif
152 }
153#endif
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