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Perf: allow testing with cached route attributes.

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This commit is contained in:
Maria Matejka 2019-08-21 17:35:27 +02:00 committed by Ondrej Zajicek (work)
parent 15a7583787
commit 6dda6931d1
3 changed files with 29 additions and 21 deletions
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2
proto/perf/config.Y
View File

@ -31,6 +31,7 @@ perf_proto_start: proto_start PERF
PERF_CFG->repeat = 4;
PERF_CFG->threshold_max = 500 MS_;
PERF_CFG->threshold_min = 1 MS_;
PERF_CFG->attrs_per_rte = 0;
PERF_CFG->keep = 0;
PERF_CFG->mode = PERF_MODE_IMPORT;
};
@ -48,6 +49,7 @@ perf_proto_item:
| REPEAT NUM { PERF_CFG->repeat = $2; }
| THRESHOLD MIN expr_us { PERF_CFG->threshold_min = $3; }
| THRESHOLD MAX expr_us { PERF_CFG->threshold_max = $3; }
| ATTRIBUTES NUM { PERF_CFG->attrs_per_rte = $2; }
| KEEP bool { PERF_CFG->keep = $2; }
| MODE IMPORT { PERF_CFG->mode = PERF_MODE_IMPORT; }
| MODE EXPORT { PERF_CFG->mode = PERF_MODE_EXPORT; }

46
proto/perf/perf.c
View File

@ -90,7 +90,7 @@ struct perf_random_routes {
struct rta a;
};
static const uint perf_random_routes_size = sizeof(net_addr) + sizeof(rte *) + RTA_MAX_SIZE;
static const uint perf_random_routes_size = sizeof(struct perf_random_routes) + (RTA_MAX_SIZE - sizeof(struct rta));
static inline s64 timediff(struct timespec *begin, struct timespec *end)
{ return (end->tv_sec - begin->tv_sec) * (s64) 1000000000 + end->tv_nsec - begin->tv_nsec; }
@ -137,36 +137,40 @@ perf_loop(void *data)
ip_addr gw = random_gw(&p->ifa->prefix);
struct timespec ts_begin, ts_generated, ts_rte, ts_update, ts_withdraw;
struct timespec ts_begin, ts_generated, ts_update, ts_withdraw;
clock_gettime(CLOCK_MONOTONIC, &ts_begin);
struct rta *a = NULL;
for (uint i=0; i<N; i++) {
struct perf_random_routes *prr = p->data + offset * i;
*((net_addr_ip4 *) &prr->net) = random_net_ip4();
rta *a = &prr->a;
bzero(a, RTA_MAX_SIZE);
if (!p->attrs_per_rte || !(i % p->attrs_per_rte)) {
a = &prr->a;
bzero(a, RTA_MAX_SIZE);
a->src = p->p.main_source;
a->source = RTS_PERF;
a->scope = SCOPE_UNIVERSE;
a->dest = RTD_UNICAST;
a->src = p->p.main_source;
a->source = RTS_PERF;
a->scope = SCOPE_UNIVERSE;
a->dest = RTD_UNICAST;
a->nh.iface = p->ifa->iface;
a->nh.gw = gw;
a->nh.weight = 1;
}
a->nh.iface = p->ifa->iface;
a->nh.gw = gw;
a->nh.weight = 1;
clock_gettime(CLOCK_MONOTONIC, &ts_generated);
if (p->attrs_per_rte)
a = rta_lookup(a);
}
for (uint i=0; i<N; i++) {
struct perf_random_routes *prr = p->data + offset * i;
prr->ep = rte_get_temp(&prr->a);
ASSERT(a);
prr->ep = rte_get_temp(a);
prr->ep->pflags = 0;
}
clock_gettime(CLOCK_MONOTONIC, &ts_rte);
clock_gettime(CLOCK_MONOTONIC, &ts_generated);
for (uint i=0; i<N; i++) {
struct perf_random_routes *prr = p->data + offset * i;
@ -184,13 +188,12 @@ perf_loop(void *data)
clock_gettime(CLOCK_MONOTONIC, &ts_withdraw);
s64 gentime = timediff(&ts_begin, &ts_generated);
s64 temptime = timediff(&ts_generated, &ts_rte);
s64 updatetime = timediff(&ts_rte, &ts_update);
s64 updatetime = timediff(&ts_generated, &ts_update);
s64 withdrawtime = timediff(&ts_update, &ts_withdraw);
if (updatetime NS >= p->threshold_min)
PLOG("exp=%u times: gen=%lu temp=%lu update=%lu withdraw=%lu",
p->exp, gentime, temptime, updatetime, withdrawtime);
PLOG("exp=%u times: gen=%lu update=%lu withdraw=%lu",
p->exp, gentime, updatetime, withdrawtime);
if (updatetime NS < p->threshold_max)
p->stop = 0;
@ -269,6 +272,7 @@ perf_init(struct proto_config *CF)
p->repeat = cf->repeat;
p->keep = cf->keep;
p->mode = cf->mode;
p->attrs_per_rte = cf->attrs_per_rte;
switch (p->mode) {
case PERF_MODE_IMPORT:

2
proto/perf/perf.h
View File

@ -22,6 +22,7 @@ struct perf_config {
uint to;
uint repeat;
uint keep;
uint attrs_per_rte;
enum perf_mode mode;
};
@ -39,6 +40,7 @@ struct perf_proto {
uint exp;
uint stop;
uint keep;
uint attrs_per_rte;
enum perf_mode mode;
};