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ITS#8054 add queue time to log

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Show time spent in conn+threadpool queues before an op actually executes.
Also clean up timestamp handling
This commit is contained in:
Howard Chu 2017-03-16 14:21:31 +00:00
parent e12ca8b6fe
commit a0cc1d9655
4 changed files with 28 additions and 26 deletions
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7
servers/slapd/connection.c
View file

@ -1053,6 +1053,13 @@ connection_operation( void *ctx, void *arg_v )
void *memctx_null = NULL;
ber_len_t memsiz;
gettimeofday( &op->o_qtime, NULL );
op->o_qtime.tv_usec -= op->o_tusec;
if ( op->o_qtime.tv_usec < 0 ) {
op->o_qtime.tv_usec += 1000000;
op->o_qtime.tv_sec--;
}
op->o_qtime.tv_sec -= op->o_time;
conn_counter_init( op, ctx );
ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
/* FIXME: returns 0 in case of failure */

35
servers/slapd/operation.c
View file

@ -38,7 +38,8 @@
#endif
static ldap_pvt_thread_mutex_t slap_op_mutex;
static struct timeval last_time;
static time_t last_time;
static int last_incr;
void slap_op_init(void)
{
@ -159,30 +160,18 @@ void
slap_op_time(time_t *t, int *nop)
{
struct timeval tv;
#if SLAP_STATS_ETIME
gettimeofday( &tv, NULL );
#else
tv.tv_sec = slap_get_time();
tv.tv_usec = 0;
#endif
ldap_pvt_thread_mutex_lock( &slap_op_mutex );
/* Usually tv.tv_sec cannot be < last_time.tv_sec
* but it might happen if we wrapped around tv_usec.
*/
if ( tv.tv_sec <= last_time.tv_sec &&
tv.tv_usec <= last_time.tv_usec ) {
tv.tv_sec = last_time.tv_sec;
tv.tv_usec = last_time.tv_usec + 1;
}
if (tv.tv_usec >= 1000000) {
tv.tv_usec -= 1000000;
tv.tv_sec++;
last_time.tv_sec = tv.tv_sec;
}
last_time.tv_usec = tv.tv_usec;
ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
gettimeofday( &tv, NULL );
*t = tv.tv_sec;
*nop = tv.tv_usec;
if ( *t == last_time ) {
*nop = ++last_incr;
} else {
last_time = *t;
last_incr = 0;
*nop = 0;
}
ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
nop[1] = tv.tv_usec;
}
Operation *

10
servers/slapd/result.c
View file

@ -40,15 +40,19 @@
#if SLAP_STATS_ETIME
#define ETIME_SETUP \
struct timeval now; \
char timestr[64]; \
(void) gettimeofday( &now, NULL ); \
now.tv_sec -= op->o_time; \
now.tv_usec -= op->o_tincr; \
if ( now.tv_usec < 0 ) { \
--now.tv_sec; now.tv_usec += 1000000; \
}
#define ETIME_LOGFMT "etime=%d.%06d "
} \
sprintf(timestr, "qtime=%d.%06d etime=%d.%06d", \
(int)op->o_qtime.tv_sec, (int)op->o_qtime.tv_usec, \
(int)now.tv_sec, (int)now.tv_usec);
#define ETIME_LOGFMT "%s "
#define StatslogEtime(lvl,fmt,pfx,tag,err,etxt,xtra) \
Statslog7(lvl,fmt,pfx,tag,err,(int)now.tv_sec,(int)now.tv_usec,etxt,xtra)
Statslog6(lvl,fmt,pfx,tag,err,timestr,etxt,xtra)
#else
#define ETIME_SETUP
#define ETIME_LOGFMT ""

2
servers/slapd/slap.h
View file

@ -2625,6 +2625,8 @@ struct Operation {
ber_tag_t o_tag; /* tag of the request */
time_t o_time; /* time op was initiated */
int o_tincr; /* counter for multiple ops with same o_time */
int o_tusec; /* microsecond timestamp */
struct timeval o_qtime; /* time spent in queues before execution */
BackendDB *o_bd; /* backend DB processing this op */
struct berval o_req_dn; /* DN of target of request */