mirror/openldap
2
0
Fork 0
mirror of https://git.openldap.org/openldap/openldap.git synced 2024-12-27 03:20:22 +08:00
Code Issues Packages Projects Releases Wiki Activity

ITS#9599 Online latency tracking

Browse Source
This commit is contained in:
Ondřej Kuzník 2021-03-10 16:22:34 +00:00
parent 8219a3a414
commit 6d95cc3935
1 changed files with 20 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
servers/lloadd/tier_bestof.c
View File

@ -57,8 +57,27 @@ bestof_cmp( const void *left, const void *right )
{
const LloadBackend *l = left;
const LloadBackend *r = right;
struct timeval now;
uintptr_t count, diff;
float a = l->b_fitness, b = r->b_fitness, factor = 1;
return l->b_fitness - r->b_fitness;
gettimeofday( &now, NULL );
/* We assume this is less than a second after the last update */
factor = 1 / ( pow( ( 1 / factor ) + 1, now.tv_usec / 1000000.0 ) - 1 );
count = __atomic_load_n( &l->b_operation_count, __ATOMIC_RELAXED );
diff = __atomic_load_n( &l->b_operation_time, __ATOMIC_RELAXED );
if ( count ) {
a = ( a * factor + (float)diff * l->b_weight / count ) / ( factor + 1 );
}
count = __atomic_load_n( &r->b_operation_count, __ATOMIC_RELAXED );
diff = __atomic_load_n( &r->b_operation_time, __ATOMIC_RELAXED );
if ( count ) {
b = ( b * factor + (float)diff * r->b_weight / count ) / ( factor + 1 );
}
return (a - b < 0) ? -1 : (a - b == 0) ? 0 : 1;
}
LloadTier *