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improve donar

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Quentin 2020-02-04 16:09:26 +01:00
parent 2a772edc84
commit 09a8572e2b
2 changed files with 46 additions and 29 deletions
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74
src/algo_lightning.c
View file

@ -77,7 +77,7 @@ struct light_ctx {
int16_t local_stats[MAX_LINKS];
struct timing_entry historic[HISTORIC_SIZE];
struct link_status status[MAX_LINKS];
uint8_t used;
uint8_t active;
uint64_t pkt_rcv_id;
uint64_t pkt_sent_id;
uint64_t uniq_pkt_sent_id;
@ -119,6 +119,7 @@ void algo_lightning_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, str
lightc->pkt_sent_id = 1;
lightc->uniq_pkt_sent_id = 1;
lightc->disable_scheduler = 0;
lightc->active = 0;
lightc->sched_strat = SCHEDULE_BOTH;
uint64_t window = 2000;
@ -142,9 +143,8 @@ void algo_lightning_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, str
for (int i = 0; i < lightc->sent_past_links; i++)
lightc->prev_links[i] = UINT8_MAX;
lightc->used = lightc->fast_count * 2;
for (int i = 0; i < lightc->total_links; i++) {
lightc->status[i].used = i < lightc->used ? LINK_SLOW : LINK_NOT_USED;
lightc->status[i].used = LINK_NOT_USED;
}
union abstract_packet m;
@ -294,9 +294,11 @@ int algo_lightning_on_stream(struct evt_core_ctx* ctx, struct evt_core_fdinfo* f
int compare_stat_entry_max(const void *a, const void *b) {
const struct stat_entry *sea = a, *seb = b;
if (sea->ooo == -1) return 1;
if (seb->ooo == -1) return -1;
return sea->ooo - seb->ooo;
int ra = sea->ooo;
int rb = seb->ooo;
if (ra < 0) ra = INT16_MAX + -ra;
if (rb < 0) rb = INT16_MAX + -rb;
return ra - rb;
}
void algo_lightning_update_stats (struct light_ctx *lightc, struct evt_core_ctx* ctx) {
@ -347,15 +349,16 @@ void algo_lightning_update_stats (struct light_ctx *lightc, struct evt_core_ctx*
for (int i = 0; i < lightc->total_links; i++) {
if (lightc->stats[i].meas_occ <= 0) lightc->stats[i].ooo = -1;
else lightc->stats[i].ooo = lightc->stats[i].ooo / lightc->stats[i].meas_occ;
lightc->local_stats[i] = lightc->stats[i].ooo;
}
// Set my local stats + merge remote stats
for (int i = 0; i < lightc->total_links; i++) {
lightc->local_stats[i] = lightc->stats[i].ooo;
/* AVG */
if (lightc->remote_stats[i] == -1) continue;
if (lightc->stats[i].ooo == -1) lightc->stats[i].ooo = lightc->remote_stats[i];
if (lightc->remote_stats[i] < 0) continue;
if (lightc->stats[i].ooo < 0) lightc->stats[i].ooo = lightc->remote_stats[i];
else lightc->stats[i].ooo = (lightc->remote_stats[i] + lightc->stats[i].ooo) / 2;
/* MAX
@ -370,7 +373,7 @@ void algo_lightning_update_stats (struct light_ctx *lightc, struct evt_core_ctx*
for (int i = 0; i < lightc->total_links; i++) {
sprintf(url, "tcp:write:127.0.0.1:%d", 7500 + i);
struct evt_core_fdinfo *to_fdinfo = evt_core_get_from_url (ctx, url);
if (to_fdinfo == NULL) lightc->stats[i].ooo = -1;
if (to_fdinfo == NULL) lightc->stats[i].ooo = -2;
}
// Sort
@ -463,16 +466,17 @@ void algo_lightning_update_used(struct light_ctx *lightc, struct timespec *now)
timespec_diff(now, &lightc->window, &not_before);
if (timespec_gt(&lightc->last_update_used, &not_before)) return;
int used_to_not = 0, not_to_used = 0;
int used_to_not = -1, not_to_used = -1;
int64_t max_ooo = 0;
for (int i = 0; i < lightc->total_links; i++) {
if (lightc->status[lightc->stats[i].link_id].used == LINK_FAST || lightc->status[lightc->stats[i].link_id].used == LINK_SLOW) {
int64_t retained_ooo = lightc->stats[i].ooo == -1 ? INT64_MAX : lightc->stats[i].ooo;
int64_t retained_ooo = lightc->stats[i].ooo < 0 ? INT64_MAX : lightc->stats[i].ooo;
if (retained_ooo >= max_ooo) {
max_ooo = retained_ooo;
used_to_not = lightc->stats[i].link_id;
}
} else {
if (lightc->stats[i].ooo == -2) continue;
if (timespec_lt(&lightc->status[lightc->stats[i].link_id].last, &oldest)) {
oldest = lightc->status[lightc->stats[i].link_id].last;
not_to_used = lightc->stats[i].link_id;
@ -480,27 +484,20 @@ void algo_lightning_update_used(struct light_ctx *lightc, struct timespec *now)
}
}
// Do we have a good link not used?
/*for (int i = 0; i < lightc->used; i++) {
if (lightc->status[lightc->stats[i].link_id].used == LINK_NOT_USED) {
not_to_used = lightc->stats[i].link_id;
break;
}
}*/
// Swap them
//printf("Link %d will be disabled, %d will be enabled\n", used_to_not, not_to_used);
if (used_to_not < 0 || not_to_used < 0) return;
lightc->status[used_to_not].used = LINK_NOT_USED;
lightc->status[not_to_used].used = LINK_SLOW;
lightc->last_update_used = *now;
}
void algo_lightning_link_cat(struct light_ctx *lightc) {
void algo_lightning_link_cat(struct light_ctx *lightc, int cur_fast_count) {
uint8_t used = 0;
//printf("---\n");
for (int i = 0; i < lightc->total_links; i++) {
if (lightc->status[lightc->stats[i].link_id].used != LINK_NOT_USED) {
if (used < lightc->fast_count) lightc->status[lightc->stats[i].link_id].used = LINK_FAST;
if (used < cur_fast_count) lightc->status[lightc->stats[i].link_id].used = LINK_FAST;
else lightc->status[lightc->stats[i].link_id].used = LINK_SLOW;
used++;
}
@ -518,15 +515,34 @@ int algo_lightning_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo*
// Pad packet
algo_lightning_pad (ctx, fdinfo, bp);
// Compute stats
// Prepare links
algo_lightning_update_stats(lightc, ctx);
algo_lightning_update_used(lightc, &now);
algo_lightning_link_cat(lightc);
if (ctx->verbose > 1) {
printf("after sort: ");
// Adapt tags quantity to active links
struct evt_core_cat *cat = evt_core_get_from_cat (ctx, "tcp-write");
int target_to_use = lightc->fast_count*2 < cat->socklist->len ? lightc->fast_count*2 : cat->socklist->len;
int diff = target_to_use - ((int) lightc->active);
for (int i = 0; i < lightc->total_links && diff > 0; i++) {
if (lightc->status[lightc->stats[i].link_id].used != LINK_NOT_USED) continue;
lightc->status[lightc->stats[i].link_id].used = LINK_SLOW;
diff--;
}
for (int i = lightc->total_links-1; i >= 0 && diff < 0; i--) {
if (lightc->status[lightc->stats[i].link_id].used == LINK_NOT_USED) continue;
lightc->status[lightc->stats[i].link_id].used = LINK_NOT_USED;
diff++;
}
lightc->active = target_to_use;
// Update link tags
algo_lightning_update_used(lightc, &now);
algo_lightning_link_cat(lightc, target_to_use/2);
if (ctx->verbose > 1 || TRUE) {
printf("link ranking (%d fast links, %d total links)\nposition | port | score | class \n", target_to_use/2, target_to_use);
for (int i = 0; i < lightc->total_links; i++) {
printf("%d (%ld), ", lightc->stats[i].link_id, lightc->stats[i].ooo);
printf("%8d | %4d | %9ld | %9s \n", i, lightc->stats[i].link_id+7500, lightc->stats[i].ooo, link_cat_str[lightc->status[lightc->stats[i].link_id].used]);
}
printf("\n");
}
@ -537,7 +553,7 @@ int algo_lightning_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo*
if (lightc->sched_strat == SCHEDULE_BOTH || lightc->sched_strat == SCHEDULE_FAST) {
sel_link_last = now;
lightc->selected_link = UINT8_MAX;
for (int i = 0, j = 0; i < lightc->total_links && j < lightc->fast_count; i++) {
for (int i = 0; i < lightc->total_links; i++) {
if (lightc->status[lightc->stats[i].link_id].used != LINK_FAST) continue;
if (timespec_lt (&lightc->status[lightc->stats[i].link_id].last, &sel_link_last)) {
lightc->selected_link = lightc->stats[i].link_id;

1
src/dcall.c
View file

@ -241,6 +241,7 @@ int main(int argc, char *argv[]) {
break;
case 'c':
de.local_port = atoi(optarg);
break;
case 'd':
de.gstreamer_log_path = optarg;
break;