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stats.cfa

Last change on this file was 88f2f0f, checked in by Peter A. Buhr <pabuhr@…>, 9 months ago
change zeroing of individual statistics fields to memset
Property mode set to `100644`
File size: 11.6 KB

Rev	Line
[8834751]	1	#include <stdint.h>
	2	#include <stdlib.hfa>
	3
	4	#include <unistd.h> // STDERR_FILENO
[7812a7b5]	5	#include <inttypes.h>
[8834751]	6	#include "bits/debug.hfa"
[73f4d08]	7	#include "bits/locks.hfa"
[8834751]	8	#include "stats.hfa"
[986cb99]	9	#include "strstream.hfa"
[8834751]	10
	11	#if !defined(__CFA_NO_STATISTICS__)
	12	void __init_stats( struct __stats_t * stats ) {
[88f2f0f]	13	memset( &stats->ready, 0, sizeof( stats->ready ) );
[8834751]	14
[5751a56]	15	#if defined(CFA_HAVE_LINUX_IO_URING_H)
[88f2f0f]	16	memset( &stats->io, 0, sizeof( stats->io ) );
[8834751]	17	#endif
[73f4d08]	18
	19	#if defined(CFA_STATS_ARRAY)
	20	stats->array.values = alloc(CFA_STATS_ARRAY);
	21	stats->array.cnt = 0;
	22	#endif
[8834751]	23	}
	24
[45b9b21]	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
[8834751]	35	void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
[941e14a]	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 );
[8834751]	62
[5751a56]	63	#if defined(CFA_HAVE_LINUX_IO_URING_H)
[45b9b21]	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 );
[7ce8873]	71	tally_one( &cltr->io.submit.eagr , &proc->io.submit.eagr );
	72	tally_one( &cltr->io.submit.nblk , &proc->io.submit.nblk );
[74227c6]	73	tally_one( &cltr->io.submit.extr , &proc->io.submit.extr );
[45b9b21]	74	tally_one( &cltr->io.flush.external , &proc->io.flush.external );
[74227c6]	75	tally_one( &cltr->io.flush.signal , &proc->io.flush.signal );
[70b4aeb9]	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 );
[45b9b21]	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 );
[54c1196]	84	tally_one( &cltr->io.calls.locked , &proc->io.calls.locked );
	85	tally_one( &cltr->io.calls.helped , &proc->io.calls.helped );
[45b9b21]	86	tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
[db614d0]	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 );
[8834751]	91	#endif
	92	}
	93
[986cb99]	94	#define eng3(X) (ws(3, 3, unit(eng( X ))))
	95
[1b033b8]	96	void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
[8834751]	97
[986cb99]	98	char buf[1024];
[bbbd2c4]	99	ostrstream sstr = { buf, 1024 };
[986cb99]	100
[69fbc61]	101	if( flags & CFA_STATS_READY_Q ) {
[986cb99]	102
[78ea291]	103	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - Ready Q Stats -----";
[986cb99]	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;
[78ea291]	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)";
[986cb99]	109
	110	double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
[d2fadeb]	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;
[986cb99]	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) \| '%'
[78ea291]	121	\| " (" \| eng3(ready.pop.local .attempt) \| " try)";
[986cb99]	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) \| '%'
[78ea291]	124	\| " (" \| eng3(ready.pop.help .attempt) \| " try)";
[986cb99]	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) \| '%'
[78ea291]	127	\| " (" \| eng3(ready.pop.steal .attempt) \| " try)";
[986cb99]	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) \| '%'
[78ea291]	130	\| " (" \| eng3(ready.pop.search.attempt) \| " try)";
[986cb99]	131
[7cf3b1d]	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";
[941e14a]	135	sstr \| "- Preemption : " \| eng3(ready.threads.preempt.yield) \| "yields," \| eng3(ready.threads.preempt.rllfwd) \| "delayed";
[986cb99]	136	sstr \| nl;
[69fbc61]	137	}
	138
[5751a56]	139	#if defined(CFA_HAVE_LINUX_IO_URING_H)
[69fbc61]	140	if( flags & CFA_STATS_IO ) {
[78ea291]	141	sstr \| "----- " \| type \| " \"" \| name \| "\" (" \| "" \| id \| "" \| ") - I/O Stats -----";
[986cb99]	142
[d60d30e]	143	uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
[69fbc61]	144
[d60d30e]	145	uint64_t total_submits = io.submit.fast + io.submit.slow;
[78ea291]	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;
[74227c6]	154	sstr \| "fast," \| eng3(io.submit.slow) \| "slow (" \| ws(3, 3, avgfasts) \| "%)," \| eng3(io.submit.extr) \| "external" \| nonl;
[78ea291]	155	}
[7ce8873]	156	sstr \| " - eager" \| eng3(io.submit.eagr) \| nonl;
	157	sstr \| " - no-wait" \| eng3(io.submit.nblk) \| nonl;
[78ea291]	158	sstr \| nl;
[986cb99]	159
[78ea291]	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";
[70b4aeb9]	162	// if(io.flush.external)
	163	// sstr \| "- flush external : " \| eng3(io.flush.external);
[69fbc61]	164
[dddb3dd0]	165	double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
	166	double avgcomp = ((double)io.calls.completed) / io.calls.drain;
[78ea291]	167	sstr \| "- syscll : "
[70b4aeb9]	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)"
[54c1196]	170	\| " - cmp " \| eng3(io.calls.locked) \| "locked, " \| eng3(io.calls.helped) \| "helped"
[78ea291]	171	\| " - " \| eng3(io.calls.errors.busy) \| " EBUSY";
[74227c6]	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";
[db614d0]	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);
[986cb99]	176	sstr \| nl;
[69fbc61]	177	}
[c34ebf2]	178	#endif
[986cb99]	179
	180	if(flags) write( sstr, stdout );
[8834751]	181	}
[73f4d08]	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
[bbbd2c4]	227	#endif

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