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stats.cfa @ a488783

ADTast-experimentalenumforall-pointer-decaypthread-emulationqualifiedEnum

Last change on this file since a488783 was 7cf3b1d, checked in by Thierry Delisle <tdelisle@…>, 3 years ago
Added level of indirection to idle sleeps which helps statistics.
Property mode set to `100644`
File size: 11.4 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.early = 0;
34	stats->ready.sleep.wakes = 0;
35	stats->ready.sleep.seen = 0;
36	stats->ready.sleep.exits = 0;
37
38	#if defined(CFA_HAVE_LINUX_IO_URING_H)
39	stats->io.alloc.fast = 0;
40	stats->io.alloc.slow = 0;
41	stats->io.alloc.fail = 0;
42	stats->io.alloc.revoke = 0;
43	stats->io.alloc.block = 0;
44	stats->io.submit.fast = 0;
45	stats->io.submit.slow = 0;
46	stats->io.flush.external = 0;
47	stats->io.calls.flush = 0;
48	stats->io.calls.submitted = 0;
49	stats->io.calls.drain = 0;
50	stats->io.calls.completed = 0;
51	stats->io.calls.errors.busy = 0;
52	stats->io.ops.sockread = 0;
53	stats->io.ops.epllread = 0;
54	stats->io.ops.sockwrite = 0;
55	stats->io.ops.epllwrite = 0;
56	#endif
57
58	#if defined(CFA_STATS_ARRAY)
59	stats->array.values = alloc(CFA_STATS_ARRAY);
60	stats->array.cnt = 0;
61	#endif
62	}
63
64	static inline void tally_one( volatile uint64_t * agg, volatile uint64_t * val) {
65	uint64_t add = __atomic_exchange_n(val, 0_l64u, __ATOMIC_RELAXED);
66	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
67	}
68
69	static inline void tally_one( volatile int64_t * agg, volatile int64_t * val) {
70	int64_t add = __atomic_exchange_n(val, 0_l64, __ATOMIC_RELAXED);
71	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
72	}
73
74	void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
75	tally_one( &cltr->ready.push.local.attempt, &proc->ready.push.local.attempt );
76	tally_one( &cltr->ready.push.local.success, &proc->ready.push.local.success );
77	tally_one( &cltr->ready.push.share.attempt, &proc->ready.push.share.attempt );
78	tally_one( &cltr->ready.push.share.success, &proc->ready.push.share.success );
79	tally_one( &cltr->ready.push.extrn.attempt, &proc->ready.push.extrn.attempt );
80	tally_one( &cltr->ready.push.extrn.success, &proc->ready.push.extrn.success );
81	tally_one( &cltr->ready.pop.local .attempt, &proc->ready.pop.local .attempt );
82	tally_one( &cltr->ready.pop.local .success, &proc->ready.pop.local .success );
83	tally_one( &cltr->ready.pop.help .attempt, &proc->ready.pop.help .attempt );
84	tally_one( &cltr->ready.pop.help .success, &proc->ready.pop.help .success );
85	tally_one( &cltr->ready.pop.steal .attempt, &proc->ready.pop.steal .attempt );
86	tally_one( &cltr->ready.pop.steal .success, &proc->ready.pop.steal .success );
87	tally_one( &cltr->ready.pop.search.attempt, &proc->ready.pop.search.attempt );
88	tally_one( &cltr->ready.pop.search.success, &proc->ready.pop.search.success );
89	tally_one( &cltr->ready.threads.migration , &proc->ready.threads.migration );
90	tally_one( &cltr->ready.threads.extunpark , &proc->ready.threads.extunpark );
91	tally_one( &cltr->ready.threads.threads , &proc->ready.threads.threads );
92	tally_one( &cltr->ready.threads.cthreads , &proc->ready.threads.cthreads );
93	tally_one( &cltr->ready.sleep.halts , &proc->ready.sleep.halts );
94	tally_one( &cltr->ready.sleep.cancels , &proc->ready.sleep.cancels );
95	tally_one( &cltr->ready.sleep.early , &proc->ready.sleep.early );
96	tally_one( &cltr->ready.sleep.wakes , &proc->ready.sleep.wakes );
97	tally_one( &cltr->ready.sleep.seen , &proc->ready.sleep.wakes );
98	tally_one( &cltr->ready.sleep.exits , &proc->ready.sleep.exits );
99
100	#if defined(CFA_HAVE_LINUX_IO_URING_H)
101	tally_one( &cltr->io.alloc.fast , &proc->io.alloc.fast );
102	tally_one( &cltr->io.alloc.slow , &proc->io.alloc.slow );
103	tally_one( &cltr->io.alloc.fail , &proc->io.alloc.fail );
104	tally_one( &cltr->io.alloc.revoke , &proc->io.alloc.revoke );
105	tally_one( &cltr->io.alloc.block , &proc->io.alloc.block );
106	tally_one( &cltr->io.submit.fast , &proc->io.submit.fast );
107	tally_one( &cltr->io.submit.slow , &proc->io.submit.slow );
108	tally_one( &cltr->io.flush.external , &proc->io.flush.external );
109	tally_one( &cltr->io.calls.flush , &proc->io.calls.flush );
110	tally_one( &cltr->io.calls.submitted , &proc->io.calls.submitted );
111	tally_one( &cltr->io.calls.drain , &proc->io.calls.drain );
112	tally_one( &cltr->io.calls.completed , &proc->io.calls.completed );
113	tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
114	tally_one( &cltr->io.ops.sockread , &proc->io.ops.sockread );
115	tally_one( &cltr->io.ops.epllread , &proc->io.ops.epllread );
116	tally_one( &cltr->io.ops.sockwrite , &proc->io.ops.sockwrite );
117	tally_one( &cltr->io.ops.epllwrite , &proc->io.ops.epllwrite );
118	#endif
119	}
120
121	#define eng3(X) (ws(3, 3, unit(eng( X ))))
122
123	void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
124
125	char buf[1024];
126	ostrstream sstr = { buf, 1024 };
127
128	if( flags & CFA_STATS_READY_Q ) {
129
130	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - Ready Q Stats -----";
131
132	uint64_t totalR = ready.pop.local.success + ready.pop.help.success + ready.pop.steal.success + ready.pop.search.success;
133	uint64_t totalS = ready.push.local.success + ready.push.share.success + ready.push.extrn.success;
134	sstr \| "- totals : " \| eng3(totalR) \| "run," \| eng3(totalS) \| "schd (" \| eng3(ready.push.extrn.success) \| "ext,"
135	\| eng3(ready.threads.migration) \| "mig," \| eng3(ready.threads.extunpark) \| " eupk," \| ready.threads.threads \| " t," \| ready.threads.cthreads \| " cthr)";
136
137	double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
138	double sLcl_len = ready.push.local.success ? ((double)ready.push.local.attempt) / ready.push.local.success : 0;
139	double sOth_len = ready.push.share.success ? ((double)ready.push.share.attempt) / ready.push.share.success : 0;
140	double sExt_len = ready.push.extrn.success ? ((double)ready.push.extrn.attempt) / ready.push.extrn.success : 0;
141	sstr \| "- push avg : " \| ws(3, 3, push_len)
142	\| "- l: " \| eng3(ready.push.local.attempt) \| " (" \| ws(3, 3, sLcl_len) \| ")"
143	\| ", s: " \| eng3(ready.push.share.attempt) \| " (" \| ws(3, 3, sOth_len) \| ")"
144	\| ", e: " \| eng3(ready.push.extrn.attempt) \| " (" \| ws(3, 3, sExt_len) \| ")";
145
146	double rLcl_pc = (100.0 * (double)ready.pop.local .success) / totalR;
147	sstr \| "- local : " \| eng3(ready.pop.local .success) \| "-"\| ws(3, 3, rLcl_pc) \| '%'
148	\| " (" \| eng3(ready.pop.local .attempt) \| " try)";
149	double rHlp_pc = (100.0 * (double)ready.pop.help .success) / totalR;
150	sstr \| "- help : " \| eng3(ready.pop.help .success) \| "-"\| ws(3, 3, rHlp_pc) \| '%'
151	\| " (" \| eng3(ready.pop.help .attempt) \| " try)";
152	double rStl_pc = (100.0 * (double)ready.pop.steal .success) / totalR;
153	sstr \| "- steal : " \| eng3(ready.pop.steal .success) \| "-"\| ws(3, 3, rStl_pc) \| '%'
154	\| " (" \| eng3(ready.pop.steal .attempt) \| " try)";
155	double rSch_pc = (100.0 * (double)ready.pop.search.success) / totalR;
156	sstr \| "- search : " \| eng3(ready.pop.search.success) \| "-"\| ws(3, 3, rSch_pc) \| '%'
157	\| " (" \| eng3(ready.pop.search.attempt) \| " try)";
158
159	sstr \| "- Idle Slp : " \| eng3(ready.sleep.halts) \| "halt," \| eng3(ready.sleep.cancels) \| "cancel,"
160	\| eng3(ready.sleep.wakes + ready.sleep.early) \| '(' \| eng3(ready.sleep.early) \| ',' \| eng3(ready.sleep.seen) \| ')' \| " wake(early, seen),"
161	\| eng3(ready.sleep.exits) \| "exit";
162	sstr \| nl;
163	}
164
165	#if defined(CFA_HAVE_LINUX_IO_URING_H)
166	if( flags & CFA_STATS_IO ) {
167	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - I/O Stats -----";
168
169	uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
170
171	uint64_t total_submits = io.submit.fast + io.submit.slow;
172	sstr \| "- totals : allc" \| eng3(io.alloc .fast) \| nonl;
173	if(io.alloc.slow) {
174	double avgfasta = (100.0 * (double)io.alloc.fast) / total_allocs;
175	sstr \| "fast," \| eng3(io.alloc .slow) \| "slow (" \| ws(3, 3, avgfasta) \| "%)" \| nonl;
176	}
177	sstr \| " - subm" \| eng3(io.submit.fast) \| nonl;
178	if(io.alloc.slow) {
179	double avgfasts = (100.0 * (double)io.submit.fast) / total_submits;
180	sstr \| "fast," \| eng3(io.submit.slow) \| "slow (" \| ws(3, 3, avgfasts) \| "%)" \| nonl;
181	}
182	sstr \| nl;
183
184	if(io.alloc.fail \|\| io.alloc.revoke \|\| io.alloc.block)
185	sstr \| "- failures : " \| eng3(io.alloc.fail) \| "oom, " \| eng3(io.alloc.revoke) \| "rvk, " \| eng3(io.alloc.block) \| "blk";
186	if(io.flush.external)
187	sstr \| "- flush external : " \| eng3(io.flush.external);
188
189	double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
190	double avgcomp = ((double)io.calls.completed) / io.calls.drain;
191	sstr \| "- syscll : "
192	\| " sub " \| eng3(io.calls.flush) \| "/" \| eng3(io.calls.submitted) \| "(" \| ws(3, 3, avgsubs) \| "/flush)"
193	\| " - cmp " \| eng3(io.calls.drain) \| "/" \| eng3(io.calls.completed) \| "(" \| ws(3, 3, avgcomp) \| "/drain)"
194	\| " - " \| eng3(io.calls.errors.busy) \| " EBUSY";
195	sstr \| "- ops blk: "
196	\| " sk rd: " \| eng3(io.ops.sockread) \| "epll: " \| eng3(io.ops.epllread)
197	\| " sk wr: " \| eng3(io.ops.sockwrite) \| "epll: " \| eng3(io.ops.epllwrite);
198	sstr \| nl;
199	}
200	#endif
201
202	if(flags) write( sstr, stdout );
203	}
204
205	#if defined(CFA_STATS_ARRAY)
206	extern "C" {
207	#include <stdio.h>
208	#include <errno.h>
209	#include <sys/stat.h>
210	#include <fcntl.h>
211	}
212
213	void __flush_stat( struct __stats_t * this, const char * name, void * handle) {
214	int ret = mkdir(".cfadata", 0755);
215	if(ret < 0 && errno != EEXIST) abort("Failed to create directory .cfadata: %d\n", errno);
216
217	char filename[100];
218	snprintf(filename, 100, ".cfadata/%s%p.data", name, handle);
219
220	int fd = open(filename, O_WRONLY \| O_APPEND \| O_CREAT, 0644);
221	if(fd < 0) abort("Failed to create file %s: %d\n", filename, errno);
222
223	for(i; this->array.cnt) {
224	char line[100];
225	size_t n = snprintf(line, 100, "%llu, %lld\n", this->array.values[i].ts, this->array.values[i].value);
226	write(fd, line, n);
227	}
228
229	this->array.cnt = 0;
230	close(fd);
231	}
232
233	static __spinlock_t stats_lock;
234
235	void __push_stat( struct __stats_t * this, int64_t value, bool external, const char * name, void * handle ) {
236	if(external) lock(stats_lock __cfaabi_dbg_ctx2);
237
238	if( this->array.cnt >= CFA_STATS_ARRAY ) __flush_stat( this, name, handle );
239
240	size_t idx = this->array.cnt;
241	this->array.cnt++;
242
243	if(external) unlock(stats_lock);
244
245	this->array.values[idx].ts = rdtscl();
246	this->array.values[idx].value = value;
247	}
248	#endif
249	#endif

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