| 1 | #include <stdint.h>
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| 2 | #include <stdlib.hfa>
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| 3 |
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| 4 | #include <unistd.h> // STDERR_FILENO
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| 5 | #include <inttypes.h>
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| 6 | #include "bits/debug.hfa"
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| 7 | #include "bits/locks.hfa"
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| 8 | #include "stats.hfa"
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| 9 | #include "strstream.hfa"
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| 10 |
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| 11 | #if !defined(__CFA_NO_STATISTICS__)
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| 12 | void __init_stats( struct __stats_t * stats ) {
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| 13 | stats->ready.push.local.attempt = 0;
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| 14 | stats->ready.push.local.success = 0;
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| 15 | stats->ready.push.share.attempt = 0;
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| 16 | stats->ready.push.share.success = 0;
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| 17 | stats->ready.push.extrn.attempt = 0;
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| 18 | stats->ready.push.extrn.success = 0;
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| 19 | stats->ready.pop.local .attempt = 0;
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| 20 | stats->ready.pop.local .success = 0;
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| 21 | stats->ready.pop.help .attempt = 0;
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| 22 | stats->ready.pop.help .success = 0;
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| 23 | stats->ready.pop.steal .attempt = 0;
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| 24 | stats->ready.pop.steal .success = 0;
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| 25 | stats->ready.pop.search.attempt = 0;
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| 26 | stats->ready.pop.search.success = 0;
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| 27 | stats->ready.threads.migration = 0;
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| 28 | stats->ready.threads.extunpark = 0;
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| 29 | stats->ready.threads.threads = 0;
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| 30 | stats->ready.threads.cthreads = 0;
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| 31 | stats->ready.threads.preempt.yield = 0;
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| 32 | stats->ready.threads.preempt.rllfwd = 0;
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| 33 | stats->ready.sleep.halts = 0;
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| 34 | stats->ready.sleep.cancels = 0;
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| 35 | stats->ready.sleep.early = 0;
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| 36 | stats->ready.sleep.wakes = 0;
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| 37 | stats->ready.sleep.seen = 0;
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| 38 | stats->ready.sleep.exits = 0;
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| 39 |
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| 40 | #if defined(CFA_HAVE_LINUX_IO_URING_H)
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| 41 | stats->io.alloc.fast = 0;
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| 42 | stats->io.alloc.slow = 0;
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| 43 | stats->io.alloc.fail = 0;
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| 44 | stats->io.alloc.revoke = 0;
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| 45 | stats->io.alloc.block = 0;
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| 46 | stats->io.submit.fast = 0;
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| 47 | stats->io.submit.slow = 0;
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| 48 | stats->io.flush.external = 0;
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| 49 | stats->io.flush.dirty = 0;
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| 50 | stats->io.flush.full = 0;
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| 51 | stats->io.flush.idle = 0;
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| 52 | stats->io.flush.eager = 0;
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| 53 | stats->io.calls.flush = 0;
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| 54 | stats->io.calls.submitted = 0;
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| 55 | stats->io.calls.drain = 0;
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| 56 | stats->io.calls.completed = 0;
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| 57 | stats->io.calls.locked = 0;
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| 58 | stats->io.calls.helped = 0;
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| 59 | stats->io.calls.errors.busy = 0;
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| 60 | stats->io.ops.sockread = 0;
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| 61 | stats->io.ops.epllread = 0;
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| 62 | stats->io.ops.sockwrite = 0;
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| 63 | stats->io.ops.epllwrite = 0;
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| 64 | #endif
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| 65 |
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| 66 | #if defined(CFA_STATS_ARRAY)
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| 67 | stats->array.values = alloc(CFA_STATS_ARRAY);
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| 68 | stats->array.cnt = 0;
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| 69 | #endif
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| 70 | }
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| 71 |
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| 72 | static inline void tally_one( volatile uint64_t * agg, volatile uint64_t * val) {
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| 73 | uint64_t add = __atomic_exchange_n(val, 0_l64u, __ATOMIC_RELAXED);
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| 74 | __atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
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| 75 | }
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| 76 |
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| 77 | static inline void tally_one( volatile int64_t * agg, volatile int64_t * val) {
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| 78 | int64_t add = __atomic_exchange_n(val, 0_l64, __ATOMIC_RELAXED);
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| 79 | __atomic_fetch_add(agg, add, __ATOMIC_RELAXED);
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| 80 | }
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| 81 |
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| 82 | void __tally_stats( struct __stats_t * cltr, struct __stats_t * proc ) {
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| 83 | tally_one( &cltr->ready.push.local.attempt , &proc->ready.push.local.attempt );
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| 84 | tally_one( &cltr->ready.push.local.success , &proc->ready.push.local.success );
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| 85 | tally_one( &cltr->ready.push.share.attempt , &proc->ready.push.share.attempt );
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| 86 | tally_one( &cltr->ready.push.share.success , &proc->ready.push.share.success );
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| 87 | tally_one( &cltr->ready.push.extrn.attempt , &proc->ready.push.extrn.attempt );
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| 88 | tally_one( &cltr->ready.push.extrn.success , &proc->ready.push.extrn.success );
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| 89 | tally_one( &cltr->ready.pop.local .attempt , &proc->ready.pop.local .attempt );
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| 90 | tally_one( &cltr->ready.pop.local .success , &proc->ready.pop.local .success );
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| 91 | tally_one( &cltr->ready.pop.help .attempt , &proc->ready.pop.help .attempt );
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| 92 | tally_one( &cltr->ready.pop.help .success , &proc->ready.pop.help .success );
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| 93 | tally_one( &cltr->ready.pop.steal .attempt , &proc->ready.pop.steal .attempt );
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| 94 | tally_one( &cltr->ready.pop.steal .success , &proc->ready.pop.steal .success );
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| 95 | tally_one( &cltr->ready.pop.search.attempt , &proc->ready.pop.search.attempt );
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| 96 | tally_one( &cltr->ready.pop.search.success , &proc->ready.pop.search.success );
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| 97 | tally_one( &cltr->ready.threads.migration , &proc->ready.threads.migration );
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| 98 | tally_one( &cltr->ready.threads.extunpark , &proc->ready.threads.extunpark );
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| 99 | tally_one( &cltr->ready.threads.threads , &proc->ready.threads.threads );
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| 100 | tally_one( &cltr->ready.threads.cthreads , &proc->ready.threads.cthreads );
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| 101 | tally_one( &cltr->ready.threads.preempt.yield , &proc->ready.threads.preempt.yield );
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| 102 | tally_one( &cltr->ready.threads.preempt.rllfwd, &proc->ready.threads.preempt.rllfwd );
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| 103 | tally_one( &cltr->ready.sleep.halts , &proc->ready.sleep.halts );
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| 104 | tally_one( &cltr->ready.sleep.cancels , &proc->ready.sleep.cancels );
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| 105 | tally_one( &cltr->ready.sleep.early , &proc->ready.sleep.early );
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| 106 | tally_one( &cltr->ready.sleep.wakes , &proc->ready.sleep.wakes );
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| 107 | tally_one( &cltr->ready.sleep.seen , &proc->ready.sleep.wakes );
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| 108 | tally_one( &cltr->ready.sleep.exits , &proc->ready.sleep.exits );
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| 109 |
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| 110 | #if defined(CFA_HAVE_LINUX_IO_URING_H)
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| 111 | tally_one( &cltr->io.alloc.fast , &proc->io.alloc.fast );
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| 112 | tally_one( &cltr->io.alloc.slow , &proc->io.alloc.slow );
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| 113 | tally_one( &cltr->io.alloc.fail , &proc->io.alloc.fail );
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| 114 | tally_one( &cltr->io.alloc.revoke , &proc->io.alloc.revoke );
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| 115 | tally_one( &cltr->io.alloc.block , &proc->io.alloc.block );
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| 116 | tally_one( &cltr->io.submit.fast , &proc->io.submit.fast );
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| 117 | tally_one( &cltr->io.submit.slow , &proc->io.submit.slow );
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| 118 | tally_one( &cltr->io.flush.external , &proc->io.flush.external );
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| 119 | tally_one( &cltr->io.flush.dirty , &proc->io.flush.dirty );
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| 120 | tally_one( &cltr->io.flush.full , &proc->io.flush.full );
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| 121 | tally_one( &cltr->io.flush.idle , &proc->io.flush.idle );
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| 122 | tally_one( &cltr->io.flush.eager , &proc->io.flush.eager );
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| 123 | tally_one( &cltr->io.calls.flush , &proc->io.calls.flush );
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| 124 | tally_one( &cltr->io.calls.submitted , &proc->io.calls.submitted );
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| 125 | tally_one( &cltr->io.calls.drain , &proc->io.calls.drain );
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| 126 | tally_one( &cltr->io.calls.completed , &proc->io.calls.completed );
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| 127 | tally_one( &cltr->io.calls.locked , &proc->io.calls.locked );
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| 128 | tally_one( &cltr->io.calls.helped , &proc->io.calls.helped );
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| 129 | tally_one( &cltr->io.calls.errors.busy, &proc->io.calls.errors.busy );
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| 130 | tally_one( &cltr->io.ops.sockread , &proc->io.ops.sockread );
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| 131 | tally_one( &cltr->io.ops.epllread , &proc->io.ops.epllread );
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| 132 | tally_one( &cltr->io.ops.sockwrite , &proc->io.ops.sockwrite );
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| 133 | tally_one( &cltr->io.ops.epllwrite , &proc->io.ops.epllwrite );
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| 134 | #endif
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| 135 | }
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| 136 |
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| 137 | #define eng3(X) (ws(3, 3, unit(eng( X ))))
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| 138 |
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| 139 | void __print_stats( struct __stats_t * stats, int flags, const char * type, const char * name, void * id ) with( *stats ) {
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| 140 |
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| 141 | char buf[1024];
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| 142 | ostrstream sstr = { buf, 1024 };
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| 143 |
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| 144 | if( flags & CFA_STATS_READY_Q ) {
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| 145 |
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| 146 | sstr | "----- " | type | " \"" | name | "\" (" | "" | id | "" | ") - Ready Q Stats -----";
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| 147 |
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| 148 | uint64_t totalR = ready.pop.local.success + ready.pop.help.success + ready.pop.steal.success + ready.pop.search.success;
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| 149 | uint64_t totalS = ready.push.local.success + ready.push.share.success + ready.push.extrn.success;
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| 150 | sstr | "- totals : " | eng3(totalR) | "run," | eng3(totalS) | "schd (" | eng3(ready.push.extrn.success) | "ext,"
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| 151 | | eng3(ready.threads.migration) | "mig," | eng3(ready.threads.extunpark) | " eupk," | ready.threads.threads | " t," | ready.threads.cthreads | " cthr)";
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| 152 |
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| 153 | double push_len = ((double)ready.push.local.attempt + ready.push.share.attempt + ready.push.extrn.attempt) / totalS;
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| 154 | double sLcl_len = ready.push.local.success ? ((double)ready.push.local.attempt) / ready.push.local.success : 0;
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| 155 | double sOth_len = ready.push.share.success ? ((double)ready.push.share.attempt) / ready.push.share.success : 0;
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| 156 | double sExt_len = ready.push.extrn.success ? ((double)ready.push.extrn.attempt) / ready.push.extrn.success : 0;
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| 157 | sstr | "- push avg : " | ws(3, 3, push_len)
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| 158 | | "- l: " | eng3(ready.push.local.attempt) | " (" | ws(3, 3, sLcl_len) | ")"
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| 159 | | ", s: " | eng3(ready.push.share.attempt) | " (" | ws(3, 3, sOth_len) | ")"
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| 160 | | ", e: " | eng3(ready.push.extrn.attempt) | " (" | ws(3, 3, sExt_len) | ")";
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| 161 |
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| 162 | double rLcl_pc = (100.0 * (double)ready.pop.local .success) / totalR;
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| 163 | sstr | "- local : " | eng3(ready.pop.local .success) | "-"| ws(3, 3, rLcl_pc) | '%'
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| 164 | | " (" | eng3(ready.pop.local .attempt) | " try)";
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| 165 | double rHlp_pc = (100.0 * (double)ready.pop.help .success) / totalR;
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| 166 | sstr | "- help : " | eng3(ready.pop.help .success) | "-"| ws(3, 3, rHlp_pc) | '%'
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| 167 | | " (" | eng3(ready.pop.help .attempt) | " try)";
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| 168 | double rStl_pc = (100.0 * (double)ready.pop.steal .success) / totalR;
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| 169 | sstr | "- steal : " | eng3(ready.pop.steal .success) | "-"| ws(3, 3, rStl_pc) | '%'
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| 170 | | " (" | eng3(ready.pop.steal .attempt) | " try)";
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| 171 | double rSch_pc = (100.0 * (double)ready.pop.search.success) / totalR;
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| 172 | sstr | "- search : " | eng3(ready.pop.search.success) | "-"| ws(3, 3, rSch_pc) | '%'
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| 173 | | " (" | eng3(ready.pop.search.attempt) | " try)";
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| 174 |
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| 175 | sstr | "- Idle Slp : " | eng3(ready.sleep.halts) | "halt," | eng3(ready.sleep.cancels) | "cancel,"
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| 176 | | eng3(ready.sleep.wakes + ready.sleep.early) | '(' | eng3(ready.sleep.early) | ',' | eng3(ready.sleep.seen) | ')' | " wake(early, seen),"
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| 177 | | eng3(ready.sleep.exits) | "exit";
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| 178 | sstr | "- Preemption : " | eng3(ready.threads.preempt.yield) | "yields," | eng3(ready.threads.preempt.rllfwd) | "delayed";
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| 179 | sstr | nl;
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| 180 | }
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| 181 |
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| 182 | #if defined(CFA_HAVE_LINUX_IO_URING_H)
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| 183 | if( flags & CFA_STATS_IO ) {
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| 184 | sstr | "----- " | type | " \"" | name | "\" (" | "" | id | "" | ") - I/O Stats -----";
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| 185 |
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| 186 | uint64_t total_allocs = io.alloc.fast + io.alloc.slow;
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| 187 |
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| 188 | uint64_t total_submits = io.submit.fast + io.submit.slow;
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| 189 | sstr | "- totals : allc" | eng3(io.alloc .fast) | nonl;
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| 190 | if(io.alloc.slow) {
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| 191 | double avgfasta = (100.0 * (double)io.alloc.fast) / total_allocs;
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| 192 | sstr | "fast," | eng3(io.alloc .slow) | "slow (" | ws(3, 3, avgfasta) | "%)" | nonl;
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| 193 | }
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| 194 | sstr | " - subm" | eng3(io.submit.fast) | nonl;
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| 195 | if(io.alloc.slow) {
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| 196 | double avgfasts = (100.0 * (double)io.submit.fast) / total_submits;
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| 197 | sstr | "fast," | eng3(io.submit.slow) | "slow (" | ws(3, 3, avgfasts) | "%)" | nonl;
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| 198 | }
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| 199 | sstr | nl;
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| 200 |
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| 201 | if(io.alloc.fail || io.alloc.revoke || io.alloc.block)
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| 202 | sstr | "- failures : " | eng3(io.alloc.fail) | "oom, " | eng3(io.alloc.revoke) | "rvk, " | eng3(io.alloc.block) | "blk";
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| 203 | // if(io.flush.external)
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| 204 | // sstr | "- flush external : " | eng3(io.flush.external);
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| 205 |
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| 206 | double avgsubs = ((double)io.calls.submitted) / io.calls.flush;
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| 207 | double avgcomp = ((double)io.calls.completed) / io.calls.drain;
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| 208 | sstr | "- syscll : "
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| 209 | | " sub " | eng3(io.calls.submitted) | "/" | eng3(io.calls.flush) | "(" | ws(3, 3, avgsubs) | "/flush)"
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| 210 | | " - cmp " | eng3(io.calls.completed) | "/" | eng3(io.calls.drain) | "(" | ws(3, 3, avgcomp) | "/drain)"
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| 211 | | " - cmp " | eng3(io.calls.locked) | "locked, " | eng3(io.calls.helped) | "helped"
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| 212 | | " - " | eng3(io.calls.errors.busy) | " EBUSY";
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| 213 | 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";
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| 214 | sstr | "- ops blk: "
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| 215 | | " sk rd: " | eng3(io.ops.sockread) | "epll: " | eng3(io.ops.epllread)
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| 216 | | " sk wr: " | eng3(io.ops.sockwrite) | "epll: " | eng3(io.ops.epllwrite);
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| 217 | sstr | nl;
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| 218 | }
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| 219 | #endif
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| 220 |
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| 221 | if(flags) write( sstr, stdout );
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| 222 | }
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| 223 |
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| 224 | #if defined(CFA_STATS_ARRAY)
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| 225 | extern "C" {
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| 226 | #include <stdio.h>
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| 227 | #include <errno.h>
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| 228 | #include <sys/stat.h>
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| 229 | #include <fcntl.h>
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| 230 | }
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| 231 |
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| 232 | void __flush_stat( struct __stats_t * this, const char * name, void * handle) {
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| 233 | int ret = mkdir(".cfadata", 0755);
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| 234 | if(ret < 0 && errno != EEXIST) abort("Failed to create directory .cfadata: %d\n", errno);
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| 235 |
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| 236 | char filename[100];
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| 237 | snprintf(filename, 100, ".cfadata/%s%p.data", name, handle);
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| 238 |
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| 239 | int fd = open(filename, O_WRONLY | O_APPEND | O_CREAT, 0644);
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| 240 | if(fd < 0) abort("Failed to create file %s: %d\n", filename, errno);
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| 241 |
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| 242 | for(i; this->array.cnt) {
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| 243 | char line[100];
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| 244 | size_t n = snprintf(line, 100, "%llu, %lld\n", this->array.values[i].ts, this->array.values[i].value);
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| 245 | write(fd, line, n);
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| 246 | }
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| 247 |
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| 248 | this->array.cnt = 0;
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| 249 | close(fd);
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| 250 | }
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| 251 |
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| 252 | static __spinlock_t stats_lock;
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| 253 |
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| 254 | void __push_stat( struct __stats_t * this, int64_t value, bool external, const char * name, void * handle ) {
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| 255 | if(external) lock(stats_lock __cfaabi_dbg_ctx2);
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| 256 |
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| 257 | if( this->array.cnt >= CFA_STATS_ARRAY ) __flush_stat( this, name, handle );
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| 258 |
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| 259 | size_t idx = this->array.cnt;
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| 260 | this->array.cnt++;
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| 261 |
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| 262 | if(external) unlock(stats_lock);
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| 263 |
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| 264 | this->array.values[idx].ts = rdtscl();
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| 265 | this->array.values[idx].value = value;
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| 266 | }
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| 267 | #endif
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| 268 | #endif
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