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stats.cfa @ 748877f

Last change on this file since 748877f was 88f2f0f, checked in by Peter A. Buhr <pabuhr@…>, 16 months ago
change zeroing of individual statistics fields to memset
Property mode set to `100644`
File size: 11.6 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	memset( &stats->ready, 0, sizeof( stats->ready ) );
14
15	#if defined(CFA_HAVE_LINUX_IO_URING_H)
16	memset( &stats->io, 0, sizeof( stats->io ) );
17	#endif
18
19	#if defined(CFA_STATS_ARRAY)
20	stats->array.values = alloc(CFA_STATS_ARRAY);
21	stats->array.cnt = 0;
22	#endif
23	}
24
25	static inline void tally_one( volatile uint64_t * agg, volatile uint64_t * val) {
26	uint64_t add = __atomic_exchange_n(val, 0_l64u, __ATOMIC_RELAXED);
27	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
28	}
29
30	static inline void tally_one( volatile int64_t * agg, volatile int64_t * val) {
31	int64_t add = __atomic_exchange_n(val, 0_l64, __ATOMIC_RELAXED);
32	__atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
33	}
34
35	void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
36	tally_one( &cltr->ready.push.local.attempt , &proc->ready.push.local.attempt );
37	tally_one( &cltr->ready.push.local.success , &proc->ready.push.local.success );
38	tally_one( &cltr->ready.push.share.attempt , &proc->ready.push.share.attempt );
39	tally_one( &cltr->ready.push.share.success , &proc->ready.push.share.success );
40	tally_one( &cltr->ready.push.extrn.attempt , &proc->ready.push.extrn.attempt );
41	tally_one( &cltr->ready.push.extrn.success , &proc->ready.push.extrn.success );
42	tally_one( &cltr->ready.pop.local .attempt , &proc->ready.pop.local .attempt );
43	tally_one( &cltr->ready.pop.local .success , &proc->ready.pop.local .success );
44	tally_one( &cltr->ready.pop.help .attempt , &proc->ready.pop.help .attempt );
45	tally_one( &cltr->ready.pop.help .success , &proc->ready.pop.help .success );
46	tally_one( &cltr->ready.pop.steal .attempt , &proc->ready.pop.steal .attempt );
47	tally_one( &cltr->ready.pop.steal .success , &proc->ready.pop.steal .success );
48	tally_one( &cltr->ready.pop.search.attempt , &proc->ready.pop.search.attempt );
49	tally_one( &cltr->ready.pop.search.success , &proc->ready.pop.search.success );
50	tally_one( &cltr->ready.threads.migration , &proc->ready.threads.migration );
51	tally_one( &cltr->ready.threads.extunpark , &proc->ready.threads.extunpark );
52	tally_one( &cltr->ready.threads.threads , &proc->ready.threads.threads );
53	tally_one( &cltr->ready.threads.cthreads , &proc->ready.threads.cthreads );
54	tally_one( &cltr->ready.threads.preempt.yield , &proc->ready.threads.preempt.yield );
55	tally_one( &cltr->ready.threads.preempt.rllfwd, &proc->ready.threads.preempt.rllfwd );
56	tally_one( &cltr->ready.sleep.halts , &proc->ready.sleep.halts );
57	tally_one( &cltr->ready.sleep.cancels , &proc->ready.sleep.cancels );
58	tally_one( &cltr->ready.sleep.early , &proc->ready.sleep.early );
59	tally_one( &cltr->ready.sleep.wakes , &proc->ready.sleep.wakes );
60	tally_one( &cltr->ready.sleep.seen , &proc->ready.sleep.wakes );
61	tally_one( &cltr->ready.sleep.exits , &proc->ready.sleep.exits );
62
63	#if defined(CFA_HAVE_LINUX_IO_URING_H)
64	tally_one( &cltr->io.alloc.fast , &proc->io.alloc.fast );
65	tally_one( &cltr->io.alloc.slow , &proc->io.alloc.slow );
66	tally_one( &cltr->io.alloc.fail , &proc->io.alloc.fail );
67	tally_one( &cltr->io.alloc.revoke , &proc->io.alloc.revoke );
68	tally_one( &cltr->io.alloc.block , &proc->io.alloc.block );
69	tally_one( &cltr->io.submit.fast , &proc->io.submit.fast );
70	tally_one( &cltr->io.submit.slow , &proc->io.submit.slow );
71	tally_one( &cltr->io.submit.eagr , &proc->io.submit.eagr );
72	tally_one( &cltr->io.submit.nblk , &proc->io.submit.nblk );
73	tally_one( &cltr->io.submit.extr , &proc->io.submit.extr );
74	tally_one( &cltr->io.flush.external , &proc->io.flush.external );
75	tally_one( &cltr->io.flush.signal , &proc->io.flush.signal );
76	tally_one( &cltr->io.flush.dirty , &proc->io.flush.dirty );
77	tally_one( &cltr->io.flush.full , &proc->io.flush.full );
78	tally_one( &cltr->io.flush.idle , &proc->io.flush.idle );
79	tally_one( &cltr->io.flush.eager , &proc->io.flush.eager );
80	tally_one( &cltr->io.calls.flush , &proc->io.calls.flush );
81	tally_one( &cltr->io.calls.submitted , &proc->io.calls.submitted );
82	tally_one( &cltr->io.calls.drain , &proc->io.calls.drain );
83	tally_one( &cltr->io.calls.completed , &proc->io.calls.completed );
84	tally_one( &cltr->io.calls.locked , &proc->io.calls.locked );
85	tally_one( &cltr->io.calls.helped , &proc->io.calls.helped );
86	tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
87	tally_one( &cltr->io.ops.sockread , &proc->io.ops.sockread );
88	tally_one( &cltr->io.ops.epllread , &proc->io.ops.epllread );
89	tally_one( &cltr->io.ops.sockwrite , &proc->io.ops.sockwrite );
90	tally_one( &cltr->io.ops.epllwrite , &proc->io.ops.epllwrite );
91	#endif
92	}
93
94	#define eng3(X) (ws(3, 3, unit(eng( X ))))
95
96	void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
97
98	char buf[1024];
99	ostrstream sstr = { buf, 1024 };
100
101	if( flags & CFA_STATS_READY_Q ) {
102
103	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - Ready Q Stats -----";
104
105	uint64_t totalR = ready.pop.local.success + ready.pop.help.success + ready.pop.steal.success + ready.pop.search.success;
106	uint64_t totalS = ready.push.local.success + ready.push.share.success + ready.push.extrn.success;
107	sstr \| "- totals : " \| eng3(totalR) \| "run," \| eng3(totalS) \| "schd (" \| eng3(ready.push.extrn.success) \| "ext,"
108	\| eng3(ready.threads.migration) \| "mig," \| eng3(ready.threads.extunpark) \| " eupk," \| ready.threads.threads \| " t," \| ready.threads.cthreads \| " cthr)";
109
110	double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
111	double sLcl_len = ready.push.local.success ? ((double)ready.push.local.attempt) / ready.push.local.success : 0;
112	double sOth_len = ready.push.share.success ? ((double)ready.push.share.attempt) / ready.push.share.success : 0;
113	double sExt_len = ready.push.extrn.success ? ((double)ready.push.extrn.attempt) / ready.push.extrn.success : 0;
114	sstr \| "- push avg : " \| ws(3, 3, push_len)
115	\| "- l: " \| eng3(ready.push.local.attempt) \| " (" \| ws(3, 3, sLcl_len) \| ")"
116	\| ", s: " \| eng3(ready.push.share.attempt) \| " (" \| ws(3, 3, sOth_len) \| ")"
117	\| ", e: " \| eng3(ready.push.extrn.attempt) \| " (" \| ws(3, 3, sExt_len) \| ")";
118
119	double rLcl_pc = (100.0 * (double)ready.pop.local .success) / totalR;
120	sstr \| "- local : " \| eng3(ready.pop.local .success) \| "-"\| ws(3, 3, rLcl_pc) \| '%'
121	\| " (" \| eng3(ready.pop.local .attempt) \| " try)";
122	double rHlp_pc = (100.0 * (double)ready.pop.help .success) / totalR;
123	sstr \| "- help : " \| eng3(ready.pop.help .success) \| "-"\| ws(3, 3, rHlp_pc) \| '%'
124	\| " (" \| eng3(ready.pop.help .attempt) \| " try)";
125	double rStl_pc = (100.0 * (double)ready.pop.steal .success) / totalR;
126	sstr \| "- steal : " \| eng3(ready.pop.steal .success) \| "-"\| ws(3, 3, rStl_pc) \| '%'
127	\| " (" \| eng3(ready.pop.steal .attempt) \| " try)";
128	double rSch_pc = (100.0 * (double)ready.pop.search.success) / totalR;
129	sstr \| "- search : " \| eng3(ready.pop.search.success) \| "-"\| ws(3, 3, rSch_pc) \| '%'
130	\| " (" \| eng3(ready.pop.search.attempt) \| " try)";
131
132	sstr \| "- Idle Slp : " \| eng3(ready.sleep.halts) \| "halt," \| eng3(ready.sleep.cancels) \| "cancel,"
133	\| eng3(ready.sleep.wakes + ready.sleep.early) \| '(' \| eng3(ready.sleep.early) \| ',' \| eng3(ready.sleep.seen) \| ')' \| " wake(early, seen),"
134	\| eng3(ready.sleep.exits) \| "exit";
135	sstr \| "- Preemption : " \| eng3(ready.threads.preempt.yield) \| "yields," \| eng3(ready.threads.preempt.rllfwd) \| "delayed";
136	sstr \| nl;
137	}
138
139	#if defined(CFA_HAVE_LINUX_IO_URING_H)
140	if( flags & CFA_STATS_IO ) {
141	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - I/O Stats -----";
142
143	uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
144
145	uint64_t total_submits = io.submit.fast + io.submit.slow;
146	sstr \| "- totals : allc" \| eng3(io.alloc .fast) \| nonl;
147	if(io.alloc.slow) {
148	double avgfasta = (100.0 * (double)io.alloc.fast) / total_allocs;
149	sstr \| "fast," \| eng3(io.alloc .slow) \| "slow (" \| ws(3, 3, avgfasta) \| "%)" \| nonl;
150	}
151	sstr \| " - subm" \| eng3(io.submit.fast) \| nonl;
152	if(io.alloc.slow) {
153	double avgfasts = (100.0 * (double)io.submit.fast) / total_submits;
154	sstr \| "fast," \| eng3(io.submit.slow) \| "slow (" \| ws(3, 3, avgfasts) \| "%)," \| eng3(io.submit.extr) \| "external" \| nonl;
155	}
156	sstr \| " - eager" \| eng3(io.submit.eagr) \| nonl;
157	sstr \| " - no-wait" \| eng3(io.submit.nblk) \| nonl;
158	sstr \| nl;
159
160	if(io.alloc.fail \|\| io.alloc.revoke \|\| io.alloc.block)
161	sstr \| "- failures : " \| eng3(io.alloc.fail) \| "oom, " \| eng3(io.alloc.revoke) \| "rvk, " \| eng3(io.alloc.block) \| "blk";
162	// if(io.flush.external)
163	// sstr \| "- flush external : " \| eng3(io.flush.external);
164
165	double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
166	double avgcomp = ((double)io.calls.completed) / io.calls.drain;
167	sstr \| "- syscll : "
168	\| " sub " \| eng3(io.calls.submitted) \| "/" \| eng3(io.calls.flush) \| "(" \| ws(3, 3, avgsubs) \| "/flush)"
169	\| " - cmp " \| eng3(io.calls.completed) \| "/" \| eng3(io.calls.drain) \| "(" \| ws(3, 3, avgcomp) \| "/drain)"
170	\| " - cmp " \| eng3(io.calls.locked) \| "locked, " \| eng3(io.calls.helped) \| "helped"
171	\| " - " \| eng3(io.calls.errors.busy) \| " EBUSY";
172	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) \| '/' \| eng3(io.flush.signal) \| "ext";
173	sstr \| "- ops blk: "
174	\| " sk rd: " \| eng3(io.ops.sockread) \| "epll: " \| eng3(io.ops.epllread)
175	\| " sk wr: " \| eng3(io.ops.sockwrite) \| "epll: " \| eng3(io.ops.epllwrite);
176	sstr \| nl;
177	}
178	#endif
179
180	if(flags) write( sstr, stdout );
181	}
182
183	#if defined(CFA_STATS_ARRAY)
184	extern "C" {
185	#include <stdio.h>
186	#include <errno.h>
187	#include <sys/stat.h>
188	#include <fcntl.h>
189	}
190
191	void __flush_stat( struct __stats_t * this, const char * name, void * handle) {
192	int ret = mkdir(".cfadata", 0755);
193	if(ret < 0 && errno != EEXIST) abort("Failed to create directory .cfadata: %d\n", errno);
194
195	char filename[100];
196	snprintf(filename, 100, ".cfadata/%s%p.data", name, handle);
197
198	int fd = open(filename, O_WRONLY \| O_APPEND \| O_CREAT, 0644);
199	if(fd < 0) abort("Failed to create file %s: %d\n", filename, errno);
200
201	for(i; this->array.cnt) {
202	char line[100];
203	size_t n = snprintf(line, 100, "%llu, %lld\n", this->array.values[i].ts, this->array.values[i].value);
204	write(fd, line, n);
205	}
206
207	this->array.cnt = 0;
208	close(fd);
209	}
210
211	static __spinlock_t stats_lock;
212
213	void __push_stat( struct __stats_t * this, int64_t value, bool external, const char * name, void * handle ) {
214	if(external) lock(stats_lock __cfaabi_dbg_ctx2);
215
216	if( this->array.cnt >= CFA_STATS_ARRAY ) __flush_stat( this, name, handle );
217
218	size_t idx = this->array.cnt;
219	this->array.cnt++;
220
221	if(external) unlock(stats_lock);
222
223	this->array.values[idx].ts = rdtscl();
224	this->array.values[idx].value = value;
225	}
226	#endif
227	#endif

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