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stats.cfa @ 40a606d2

ADTast-experimentalenumpthread-emulationqualifiedEnum

Last change on this file since 40a606d2 was 941e14a, checked in by Thierry Delisle <tdelisle@…>, 2 years ago
Added statistics for preemption
Property mode set to `100644`
File size: 12.5 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.threads.preempt.yield = 0;
32	stats->ready.threads.preempt.rllfwd = 0;
33	stats->ready.sleep.halts = 0;
34	stats->ready.sleep.cancels = 0;
35	stats->ready.sleep.early = 0;
36	stats->ready.sleep.wakes = 0;
37	stats->ready.sleep.seen = 0;
38	stats->ready.sleep.exits = 0;
39
40	#if defined(CFA_HAVE_LINUX_IO_URING_H)
41	stats->io.alloc.fast = 0;
42	stats->io.alloc.slow = 0;
43	stats->io.alloc.fail = 0;
44	stats->io.alloc.revoke = 0;
45	stats->io.alloc.block = 0;
46	stats->io.submit.fast = 0;
47	stats->io.submit.slow = 0;
48	stats->io.flush.external = 0;
49	stats->io.flush.dirty = 0;
50	stats->io.flush.full = 0;
51	stats->io.flush.idle = 0;
52	stats->io.flush.eager = 0;
53	stats->io.calls.flush = 0;
54	stats->io.calls.submitted = 0;
55	stats->io.calls.drain = 0;
56	stats->io.calls.completed = 0;
57	stats->io.calls.errors.busy = 0;
58	stats->io.ops.sockread = 0;
59	stats->io.ops.epllread = 0;
60	stats->io.ops.sockwrite = 0;
61	stats->io.ops.epllwrite = 0;
62	#endif
63
64	#if defined(CFA_STATS_ARRAY)
65	stats->array.values = alloc(CFA_STATS_ARRAY);
66	stats->array.cnt = 0;
67	#endif
68	}
69
70	static inline void tally_one( volatile uint64_t * agg, volatile uint64_t * val) {
71	uint64_t add = __atomic_exchange_n(val, 0_l64u, __ATOMIC_RELAXED);
72	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
73	}
74
75	static inline void tally_one( volatile int64_t * agg, volatile int64_t * val) {
76	int64_t add = __atomic_exchange_n(val, 0_l64, __ATOMIC_RELAXED);
77	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
78	}
79
80	void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
81	tally_one( &cltr->ready.push.local.attempt , &proc->ready.push.local.attempt );
82	tally_one( &cltr->ready.push.local.success , &proc->ready.push.local.success );
83	tally_one( &cltr->ready.push.share.attempt , &proc->ready.push.share.attempt );
84	tally_one( &cltr->ready.push.share.success , &proc->ready.push.share.success );
85	tally_one( &cltr->ready.push.extrn.attempt , &proc->ready.push.extrn.attempt );
86	tally_one( &cltr->ready.push.extrn.success , &proc->ready.push.extrn.success );
87	tally_one( &cltr->ready.pop.local .attempt , &proc->ready.pop.local .attempt );
88	tally_one( &cltr->ready.pop.local .success , &proc->ready.pop.local .success );
89	tally_one( &cltr->ready.pop.help .attempt , &proc->ready.pop.help .attempt );
90	tally_one( &cltr->ready.pop.help .success , &proc->ready.pop.help .success );
91	tally_one( &cltr->ready.pop.steal .attempt , &proc->ready.pop.steal .attempt );
92	tally_one( &cltr->ready.pop.steal .success , &proc->ready.pop.steal .success );
93	tally_one( &cltr->ready.pop.search.attempt , &proc->ready.pop.search.attempt );
94	tally_one( &cltr->ready.pop.search.success , &proc->ready.pop.search.success );
95	tally_one( &cltr->ready.threads.migration , &proc->ready.threads.migration );
96	tally_one( &cltr->ready.threads.extunpark , &proc->ready.threads.extunpark );
97	tally_one( &cltr->ready.threads.threads , &proc->ready.threads.threads );
98	tally_one( &cltr->ready.threads.cthreads , &proc->ready.threads.cthreads );
99	tally_one( &cltr->ready.threads.preempt.yield , &proc->ready.threads.preempt.yield );
100	tally_one( &cltr->ready.threads.preempt.rllfwd, &proc->ready.threads.preempt.rllfwd );
101	tally_one( &cltr->ready.sleep.halts , &proc->ready.sleep.halts );
102	tally_one( &cltr->ready.sleep.cancels , &proc->ready.sleep.cancels );
103	tally_one( &cltr->ready.sleep.early , &proc->ready.sleep.early );
104	tally_one( &cltr->ready.sleep.wakes , &proc->ready.sleep.wakes );
105	tally_one( &cltr->ready.sleep.seen , &proc->ready.sleep.wakes );
106	tally_one( &cltr->ready.sleep.exits , &proc->ready.sleep.exits );
107
108	#if defined(CFA_HAVE_LINUX_IO_URING_H)
109	tally_one( &cltr->io.alloc.fast , &proc->io.alloc.fast );
110	tally_one( &cltr->io.alloc.slow , &proc->io.alloc.slow );
111	tally_one( &cltr->io.alloc.fail , &proc->io.alloc.fail );
112	tally_one( &cltr->io.alloc.revoke , &proc->io.alloc.revoke );
113	tally_one( &cltr->io.alloc.block , &proc->io.alloc.block );
114	tally_one( &cltr->io.submit.fast , &proc->io.submit.fast );
115	tally_one( &cltr->io.submit.slow , &proc->io.submit.slow );
116	tally_one( &cltr->io.flush.external , &proc->io.flush.external );
117	tally_one( &cltr->io.flush.dirty , &proc->io.flush.dirty );
118	tally_one( &cltr->io.flush.full , &proc->io.flush.full );
119	tally_one( &cltr->io.flush.idle , &proc->io.flush.idle );
120	tally_one( &cltr->io.flush.eager , &proc->io.flush.eager );
121	tally_one( &cltr->io.calls.flush , &proc->io.calls.flush );
122	tally_one( &cltr->io.calls.submitted , &proc->io.calls.submitted );
123	tally_one( &cltr->io.calls.drain , &proc->io.calls.drain );
124	tally_one( &cltr->io.calls.completed , &proc->io.calls.completed );
125	tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
126	tally_one( &cltr->io.ops.sockread , &proc->io.ops.sockread );
127	tally_one( &cltr->io.ops.epllread , &proc->io.ops.epllread );
128	tally_one( &cltr->io.ops.sockwrite , &proc->io.ops.sockwrite );
129	tally_one( &cltr->io.ops.epllwrite , &proc->io.ops.epllwrite );
130	#endif
131	}
132
133	#define eng3(X) (ws(3, 3, unit(eng( X ))))
134
135	void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
136
137	char buf[1024];
138	ostrstream sstr = { buf, 1024 };
139
140	if( flags & CFA_STATS_READY_Q ) {
141
142	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - Ready Q Stats -----";
143
144	uint64_t totalR = ready.pop.local.success + ready.pop.help.success + ready.pop.steal.success + ready.pop.search.success;
145	uint64_t totalS = ready.push.local.success + ready.push.share.success + ready.push.extrn.success;
146	sstr \| "- totals : " \| eng3(totalR) \| "run," \| eng3(totalS) \| "schd (" \| eng3(ready.push.extrn.success) \| "ext,"
147	\| eng3(ready.threads.migration) \| "mig," \| eng3(ready.threads.extunpark) \| " eupk," \| ready.threads.threads \| " t," \| ready.threads.cthreads \| " cthr)";
148
149	double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
150	double sLcl_len = ready.push.local.success ? ((double)ready.push.local.attempt) / ready.push.local.success : 0;
151	double sOth_len = ready.push.share.success ? ((double)ready.push.share.attempt) / ready.push.share.success : 0;
152	double sExt_len = ready.push.extrn.success ? ((double)ready.push.extrn.attempt) / ready.push.extrn.success : 0;
153	sstr \| "- push avg : " \| ws(3, 3, push_len)
154	\| "- l: " \| eng3(ready.push.local.attempt) \| " (" \| ws(3, 3, sLcl_len) \| ")"
155	\| ", s: " \| eng3(ready.push.share.attempt) \| " (" \| ws(3, 3, sOth_len) \| ")"
156	\| ", e: " \| eng3(ready.push.extrn.attempt) \| " (" \| ws(3, 3, sExt_len) \| ")";
157
158	double rLcl_pc = (100.0 * (double)ready.pop.local .success) / totalR;
159	sstr \| "- local : " \| eng3(ready.pop.local .success) \| "-"\| ws(3, 3, rLcl_pc) \| '%'
160	\| " (" \| eng3(ready.pop.local .attempt) \| " try)";
161	double rHlp_pc = (100.0 * (double)ready.pop.help .success) / totalR;
162	sstr \| "- help : " \| eng3(ready.pop.help .success) \| "-"\| ws(3, 3, rHlp_pc) \| '%'
163	\| " (" \| eng3(ready.pop.help .attempt) \| " try)";
164	double rStl_pc = (100.0 * (double)ready.pop.steal .success) / totalR;
165	sstr \| "- steal : " \| eng3(ready.pop.steal .success) \| "-"\| ws(3, 3, rStl_pc) \| '%'
166	\| " (" \| eng3(ready.pop.steal .attempt) \| " try)";
167	double rSch_pc = (100.0 * (double)ready.pop.search.success) / totalR;
168	sstr \| "- search : " \| eng3(ready.pop.search.success) \| "-"\| ws(3, 3, rSch_pc) \| '%'
169	\| " (" \| eng3(ready.pop.search.attempt) \| " try)";
170
171	sstr \| "- Idle Slp : " \| eng3(ready.sleep.halts) \| "halt," \| eng3(ready.sleep.cancels) \| "cancel,"
172	\| eng3(ready.sleep.wakes + ready.sleep.early) \| '(' \| eng3(ready.sleep.early) \| ',' \| eng3(ready.sleep.seen) \| ')' \| " wake(early, seen),"
173	\| eng3(ready.sleep.exits) \| "exit";
174	sstr \| "- Preemption : " \| eng3(ready.threads.preempt.yield) \| "yields," \| eng3(ready.threads.preempt.rllfwd) \| "delayed";
175	sstr \| nl;
176	}
177
178	#if defined(CFA_HAVE_LINUX_IO_URING_H)
179	if( flags & CFA_STATS_IO ) {
180	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - I/O Stats -----";
181
182	uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
183
184	uint64_t total_submits = io.submit.fast + io.submit.slow;
185	sstr \| "- totals : allc" \| eng3(io.alloc .fast) \| nonl;
186	if(io.alloc.slow) {
187	double avgfasta = (100.0 * (double)io.alloc.fast) / total_allocs;
188	sstr \| "fast," \| eng3(io.alloc .slow) \| "slow (" \| ws(3, 3, avgfasta) \| "%)" \| nonl;
189	}
190	sstr \| " - subm" \| eng3(io.submit.fast) \| nonl;
191	if(io.alloc.slow) {
192	double avgfasts = (100.0 * (double)io.submit.fast) / total_submits;
193	sstr \| "fast," \| eng3(io.submit.slow) \| "slow (" \| ws(3, 3, avgfasts) \| "%)" \| nonl;
194	}
195	sstr \| nl;
196
197	if(io.alloc.fail \|\| io.alloc.revoke \|\| io.alloc.block)
198	sstr \| "- failures : " \| eng3(io.alloc.fail) \| "oom, " \| eng3(io.alloc.revoke) \| "rvk, " \| eng3(io.alloc.block) \| "blk";
199	// if(io.flush.external)
200	// sstr \| "- flush external : " \| eng3(io.flush.external);
201
202	double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
203	double avgcomp = ((double)io.calls.completed) / io.calls.drain;
204	sstr \| "- syscll : "
205	\| " sub " \| eng3(io.calls.submitted) \| "/" \| eng3(io.calls.flush) \| "(" \| ws(3, 3, avgsubs) \| "/flush)"
206	\| " - cmp " \| eng3(io.calls.completed) \| "/" \| eng3(io.calls.drain) \| "(" \| ws(3, 3, avgcomp) \| "/drain)"
207	\| " - " \| eng3(io.calls.errors.busy) \| " EBUSY";
208	sstr \| " - sub: " \| eng3(io.flush.full) \| "full, " \| eng3(io.flush.dirty) \| "drty, " \| eng3(io.flush.idle) \| "idle, " \| eng3(io.flush.eager) \| "eagr, " \| eng3(io.flush.external) \| "ext";
209	sstr \| "- ops blk: "
210	\| " sk rd: " \| eng3(io.ops.sockread) \| "epll: " \| eng3(io.ops.epllread)
211	\| " sk wr: " \| eng3(io.ops.sockwrite) \| "epll: " \| eng3(io.ops.epllwrite);
212	sstr \| nl;
213	}
214	#endif
215
216	if(flags) write( sstr, stdout );
217	}
218
219	#if defined(CFA_STATS_ARRAY)
220	extern "C" {
221	#include <stdio.h>
222	#include <errno.h>
223	#include <sys/stat.h>
224	#include <fcntl.h>
225	}
226
227	void __flush_stat( struct __stats_t * this, const char * name, void * handle) {
228	int ret = mkdir(".cfadata", 0755);
229	if(ret < 0 && errno != EEXIST) abort("Failed to create directory .cfadata: %d\n", errno);
230
231	char filename[100];
232	snprintf(filename, 100, ".cfadata/%s%p.data", name, handle);
233
234	int fd = open(filename, O_WRONLY \| O_APPEND \| O_CREAT, 0644);
235	if(fd < 0) abort("Failed to create file %s: %d\n", filename, errno);
236
237	for(i; this->array.cnt) {
238	char line[100];
239	size_t n = snprintf(line, 100, "%llu, %lld\n", this->array.values[i].ts, this->array.values[i].value);
240	write(fd, line, n);
241	}
242
243	this->array.cnt = 0;
244	close(fd);
245	}
246
247	static __spinlock_t stats_lock;
248
249	void __push_stat( struct __stats_t * this, int64_t value, bool external, const char * name, void * handle ) {
250	if(external) lock(stats_lock __cfaabi_dbg_ctx2);
251
252	if( this->array.cnt >= CFA_STATS_ARRAY ) __flush_stat( this, name, handle );
253
254	size_t idx = this->array.cnt;
255	this->array.cnt++;
256
257	if(external) unlock(stats_lock);
258
259	this->array.values[idx].ts = rdtscl();
260	this->array.values[idx].value = value;
261	}
262	#endif
263	#endif

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