source: libcfa/src/concurrency/stats.cfa@ fe8c31e

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum
Last change on this file since fe8c31e was db614d0, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Added stats for epoll
  • Property mode set to 100644
File size: 11.0 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 "bits/locks.hfa"
8#include "stats.hfa"
9#include "strstream.hfa"
10
11#if !defined(__CFA_NO_STATISTICS__)
12 void __init_stats( struct __stats_t * stats ) {
13 stats->ready.push.local.attempt = 0;
14 stats->ready.push.local.success = 0;
15 stats->ready.push.share.attempt = 0;
16 stats->ready.push.share.success = 0;
17 stats->ready.push.extrn.attempt = 0;
18 stats->ready.push.extrn.success = 0;
19 stats->ready.pop.local .attempt = 0;
20 stats->ready.pop.local .success = 0;
21 stats->ready.pop.help .attempt = 0;
22 stats->ready.pop.help .success = 0;
23 stats->ready.pop.steal .attempt = 0;
24 stats->ready.pop.steal .success = 0;
25 stats->ready.pop.search.attempt = 0;
26 stats->ready.pop.search.success = 0;
27 stats->ready.threads.migration = 0;
28 stats->ready.threads.extunpark = 0;
29 stats->ready.threads.threads = 0;
30 stats->ready.threads.cthreads = 0;
31 stats->ready.sleep.halts = 0;
32 stats->ready.sleep.cancels = 0;
33 stats->ready.sleep.wakes = 0;
34 stats->ready.sleep.exits = 0;
35
36 #if defined(CFA_HAVE_LINUX_IO_URING_H)
37 stats->io.alloc.fast = 0;
38 stats->io.alloc.slow = 0;
39 stats->io.alloc.fail = 0;
40 stats->io.alloc.revoke = 0;
41 stats->io.alloc.block = 0;
42 stats->io.submit.fast = 0;
43 stats->io.submit.slow = 0;
44 stats->io.flush.external = 0;
45 stats->io.calls.flush = 0;
46 stats->io.calls.submitted = 0;
47 stats->io.calls.drain = 0;
48 stats->io.calls.completed = 0;
49 stats->io.calls.errors.busy = 0;
50 stats->io.ops.sockread = 0;
51 stats->io.ops.epllread = 0;
52 stats->io.ops.sockwrite = 0;
53 stats->io.ops.epllwrite = 0;
54 #endif
55
56 #if defined(CFA_STATS_ARRAY)
57 stats->array.values = alloc(CFA_STATS_ARRAY);
58 stats->array.cnt = 0;
59 #endif
60 }
61
62 static inline void tally_one( volatile uint64_t * agg, volatile uint64_t * val) {
63 uint64_t add = __atomic_exchange_n(val, 0_l64u, __ATOMIC_RELAXED);
64 __atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
65 }
66
67 static inline void tally_one( volatile int64_t * agg, volatile int64_t * val) {
68 int64_t add = __atomic_exchange_n(val, 0_l64, __ATOMIC_RELAXED);
69 __atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
70 }
71
72 void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
73 tally_one( &cltr->ready.push.local.attempt, &proc->ready.push.local.attempt );
74 tally_one( &cltr->ready.push.local.success, &proc->ready.push.local.success );
75 tally_one( &cltr->ready.push.share.attempt, &proc->ready.push.share.attempt );
76 tally_one( &cltr->ready.push.share.success, &proc->ready.push.share.success );
77 tally_one( &cltr->ready.push.extrn.attempt, &proc->ready.push.extrn.attempt );
78 tally_one( &cltr->ready.push.extrn.success, &proc->ready.push.extrn.success );
79 tally_one( &cltr->ready.pop.local .attempt, &proc->ready.pop.local .attempt );
80 tally_one( &cltr->ready.pop.local .success, &proc->ready.pop.local .success );
81 tally_one( &cltr->ready.pop.help .attempt, &proc->ready.pop.help .attempt );
82 tally_one( &cltr->ready.pop.help .success, &proc->ready.pop.help .success );
83 tally_one( &cltr->ready.pop.steal .attempt, &proc->ready.pop.steal .attempt );
84 tally_one( &cltr->ready.pop.steal .success, &proc->ready.pop.steal .success );
85 tally_one( &cltr->ready.pop.search.attempt, &proc->ready.pop.search.attempt );
86 tally_one( &cltr->ready.pop.search.success, &proc->ready.pop.search.success );
87 tally_one( &cltr->ready.threads.migration , &proc->ready.threads.migration );
88 tally_one( &cltr->ready.threads.extunpark , &proc->ready.threads.extunpark );
89 tally_one( &cltr->ready.threads.threads , &proc->ready.threads.threads );
90 tally_one( &cltr->ready.threads.cthreads , &proc->ready.threads.cthreads );
91 tally_one( &cltr->ready.sleep.halts , &proc->ready.sleep.halts );
92 tally_one( &cltr->ready.sleep.cancels , &proc->ready.sleep.cancels );
93 tally_one( &cltr->ready.sleep.wakes , &proc->ready.sleep.wakes );
94 tally_one( &cltr->ready.sleep.exits , &proc->ready.sleep.exits );
95
96 #if defined(CFA_HAVE_LINUX_IO_URING_H)
97 tally_one( &cltr->io.alloc.fast , &proc->io.alloc.fast );
98 tally_one( &cltr->io.alloc.slow , &proc->io.alloc.slow );
99 tally_one( &cltr->io.alloc.fail , &proc->io.alloc.fail );
100 tally_one( &cltr->io.alloc.revoke , &proc->io.alloc.revoke );
101 tally_one( &cltr->io.alloc.block , &proc->io.alloc.block );
102 tally_one( &cltr->io.submit.fast , &proc->io.submit.fast );
103 tally_one( &cltr->io.submit.slow , &proc->io.submit.slow );
104 tally_one( &cltr->io.flush.external , &proc->io.flush.external );
105 tally_one( &cltr->io.calls.flush , &proc->io.calls.flush );
106 tally_one( &cltr->io.calls.submitted , &proc->io.calls.submitted );
107 tally_one( &cltr->io.calls.drain , &proc->io.calls.drain );
108 tally_one( &cltr->io.calls.completed , &proc->io.calls.completed );
109 tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
110 tally_one( &cltr->io.ops.sockread , &proc->io.ops.sockread );
111 tally_one( &cltr->io.ops.epllread , &proc->io.ops.epllread );
112 tally_one( &cltr->io.ops.sockwrite , &proc->io.ops.sockwrite );
113 tally_one( &cltr->io.ops.epllwrite , &proc->io.ops.epllwrite );
114 #endif
115 }
116
117 #define eng3(X) (ws(3, 3, unit(eng( X ))))
118
119 void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
120
121 char buf[1024];
122 ostrstream sstr = { buf, 1024 };
123
124 if( flags & CFA_STATS_READY_Q ) {
125
126 sstr | "----- " | type | " \"" | name | "\" (" | "" | id | "" | ") - Ready Q Stats -----";
127
128 uint64_t totalR = ready.pop.local.success + ready.pop.help.success + ready.pop.steal.success + ready.pop.search.success;
129 uint64_t totalS = ready.push.local.success + ready.push.share.success + ready.push.extrn.success;
130 sstr | "- totals : " | eng3(totalR) | "run," | eng3(totalS) | "schd (" | eng3(ready.push.extrn.success) | "ext,"
131 | eng3(ready.threads.migration) | "mig," | eng3(ready.threads.extunpark) | " eupk," | ready.threads.threads | " t," | ready.threads.cthreads | " cthr)";
132
133 double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
134 double sLcl_len = ready.push.local.success ? ((double)ready.push.local.attempt) / ready.push.local.success : 0;
135 double sOth_len = ready.push.share.success ? ((double)ready.push.share.attempt) / ready.push.share.success : 0;
136 double sExt_len = ready.push.extrn.success ? ((double)ready.push.extrn.attempt) / ready.push.extrn.success : 0;
137 sstr | "- push avg : " | ws(3, 3, push_len)
138 | "- l: " | eng3(ready.push.local.attempt) | " (" | ws(3, 3, sLcl_len) | ")"
139 | ", s: " | eng3(ready.push.share.attempt) | " (" | ws(3, 3, sOth_len) | ")"
140 | ", e: " | eng3(ready.push.extrn.attempt) | " (" | ws(3, 3, sExt_len) | ")";
141
142 double rLcl_pc = (100.0 * (double)ready.pop.local .success) / totalR;
143 sstr | "- local : " | eng3(ready.pop.local .success) | "-"| ws(3, 3, rLcl_pc) | '%'
144 | " (" | eng3(ready.pop.local .attempt) | " try)";
145 double rHlp_pc = (100.0 * (double)ready.pop.help .success) / totalR;
146 sstr | "- help : " | eng3(ready.pop.help .success) | "-"| ws(3, 3, rHlp_pc) | '%'
147 | " (" | eng3(ready.pop.help .attempt) | " try)";
148 double rStl_pc = (100.0 * (double)ready.pop.steal .success) / totalR;
149 sstr | "- steal : " | eng3(ready.pop.steal .success) | "-"| ws(3, 3, rStl_pc) | '%'
150 | " (" | eng3(ready.pop.steal .attempt) | " try)";
151 double rSch_pc = (100.0 * (double)ready.pop.search.success) / totalR;
152 sstr | "- search : " | eng3(ready.pop.search.success) | "-"| ws(3, 3, rSch_pc) | '%'
153 | " (" | eng3(ready.pop.search.attempt) | " try)";
154
155 sstr | "- Idle Slp : " | eng3(ready.sleep.halts) | "halt," | eng3(ready.sleep.cancels) | "cancel," | eng3(ready.sleep.wakes) | "wake," | eng3(ready.sleep.exits) | "exit";
156 sstr | nl;
157 }
158
159 #if defined(CFA_HAVE_LINUX_IO_URING_H)
160 if( flags & CFA_STATS_IO ) {
161 sstr | "----- " | type | " \"" | name | "\" (" | "" | id | "" | ") - I/O Stats -----";
162
163 uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
164
165 uint64_t total_submits = io.submit.fast + io.submit.slow;
166 sstr | "- totals : allc" | eng3(io.alloc .fast) | nonl;
167 if(io.alloc.slow) {
168 double avgfasta = (100.0 * (double)io.alloc.fast) / total_allocs;
169 sstr | "fast," | eng3(io.alloc .slow) | "slow (" | ws(3, 3, avgfasta) | "%)" | nonl;
170 }
171 sstr | " - subm" | eng3(io.submit.fast) | nonl;
172 if(io.alloc.slow) {
173 double avgfasts = (100.0 * (double)io.submit.fast) / total_submits;
174 sstr | "fast," | eng3(io.submit.slow) | "slow (" | ws(3, 3, avgfasts) | "%)" | nonl;
175 }
176 sstr | nl;
177
178 if(io.alloc.fail || io.alloc.revoke || io.alloc.block)
179 sstr | "- failures : " | eng3(io.alloc.fail) | "oom, " | eng3(io.alloc.revoke) | "rvk, " | eng3(io.alloc.block) | "blk";
180 if(io.flush.external)
181 sstr | "- flush external : " | eng3(io.flush.external);
182
183 double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
184 double avgcomp = ((double)io.calls.completed) / io.calls.drain;
185 sstr | "- syscll : "
186 | " sub " | eng3(io.calls.flush) | "/" | eng3(io.calls.submitted) | "(" | ws(3, 3, avgsubs) | "/flush)"
187 | " - cmp " | eng3(io.calls.drain) | "/" | eng3(io.calls.completed) | "(" | ws(3, 3, avgcomp) | "/drain)"
188 | " - " | eng3(io.calls.errors.busy) | " EBUSY";
189 sstr | "- ops blk: "
190 | " sk rd: " | eng3(io.ops.sockread) | "epll: " | eng3(io.ops.epllread)
191 | " sk wr: " | eng3(io.ops.sockwrite) | "epll: " | eng3(io.ops.epllwrite);
192 sstr | nl;
193 }
194 #endif
195
196 if(flags) write( sstr, stdout );
197 }
198
199 #if defined(CFA_STATS_ARRAY)
200 extern "C" {
201 #include <stdio.h>
202 #include <errno.h>
203 #include <sys/stat.h>
204 #include <fcntl.h>
205 }
206
207 void __flush_stat( struct __stats_t * this, const char * name, void * handle) {
208 int ret = mkdir(".cfadata", 0755);
209 if(ret < 0 && errno != EEXIST) abort("Failed to create directory .cfadata: %d\n", errno);
210
211 char filename[100];
212 snprintf(filename, 100, ".cfadata/%s%p.data", name, handle);
213
214 int fd = open(filename, O_WRONLY | O_APPEND | O_CREAT, 0644);
215 if(fd < 0) abort("Failed to create file %s: %d\n", filename, errno);
216
217 for(i; this->array.cnt) {
218 char line[100];
219 size_t n = snprintf(line, 100, "%llu, %lld\n", this->array.values[i].ts, this->array.values[i].value);
220 write(fd, line, n);
221 }
222
223 this->array.cnt = 0;
224 close(fd);
225 }
226
227 static __spinlock_t stats_lock;
228
229 void __push_stat( struct __stats_t * this, int64_t value, bool external, const char * name, void * handle ) {
230 if(external) lock(stats_lock __cfaabi_dbg_ctx2);
231
232 if( this->array.cnt >= CFA_STATS_ARRAY ) __flush_stat( this, name, handle );
233
234 size_t idx = this->array.cnt;
235 this->array.cnt++;
236
237 if(external) unlock(stats_lock);
238
239 this->array.values[idx].ts = rdtscl();
240 this->array.values[idx].value = value;
241 }
242 #endif
243#endif
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