From: Willy Tarreau <w@1wt.eu>
Date: Fri, 26 Feb 2021 09:13:40 +0000 (+0100)
Subject: MINOR: task: place the heavy elements in TL_HEAVY
X-Git-Tag: v2.4-dev10~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=826fa87246d2a8ae12525895f22655e7b9844682;p=thirdparty%2Fhaproxy.git

MINOR: task: place the heavy elements in TL_HEAVY

Instead of placing heavy tasklets into the TL_BULK queue, we now place
them into the TL_HEAVY one, which is assigned a default weight of ~1%
load at once. This way heavy tasks will not block TL_BULK anymore.
---

diff --git a/src/task.c b/src/task.c
index 1b1738defd..a64d1dfeb6 100644
--- a/src/task.c
+++ b/src/task.c
@@ -114,7 +114,11 @@ void __tasklet_wakeup_on(struct tasklet *tl, int thr)
 {
 	if (likely(thr < 0)) {
 		/* this tasklet runs on the caller thread */
-		if (tl->state & (TASK_SELF_WAKING|TASK_HEAVY)) {
+		if (tl->state & TASK_HEAVY) {
+			LIST_ADDQ(&sched->tasklets[TL_HEAVY], &tl->list);
+			sched->tl_class_mask |= 1 << TL_HEAVY;
+		}
+		else if (tl->state & TASK_SELF_WAKING) {
 			LIST_ADDQ(&sched->tasklets[TL_BULK], &tl->list);
 			sched->tl_class_mask |= 1 << TL_BULK;
 		}