From 24c0a02a18d35dbd4f7715018bfffb11241bce7b Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Mon, 19 Nov 2018 01:07:43 +0100
Subject: Fix task and thread collection frequency
sched_tick is incremented only once per second, not once per tick.
* kern/task.c (consider_task_collect): Divide task_collect_max_rate by
(hz / 1) to get a number of scheduler ticks.
* kern/thread.c (consider_thread_collect): Divide thread_collect_max_rate by
(hz / 1) to get a number of scheduler ticks.
---
kern/task.c | 3 ++-
kern/thread.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
(limited to 'kern')
diff --git a/kern/task.c b/kern/task.c
index fc5802e3..57ad9849 100644
--- a/kern/task.c
+++ b/kern/task.c
@@ -1224,7 +1224,8 @@ void consider_task_collect(void)
task_collect_max_rate = hz;
if (task_collect_allowed &&
- (sched_tick > (task_collect_last_tick + task_collect_max_rate))) {
+ (sched_tick > (task_collect_last_tick +
+ task_collect_max_rate / (hz / 1)))) {
task_collect_last_tick = sched_tick;
task_collect_scan();
}
diff --git a/kern/thread.c b/kern/thread.c
index 29c26d44..86b76103 100644
--- a/kern/thread.c
+++ b/kern/thread.c
@@ -2326,7 +2326,8 @@ void consider_thread_collect(void)
if (thread_collect_allowed &&
(sched_tick >
- (thread_collect_last_tick + thread_collect_max_rate))) {
+ (thread_collect_last_tick +
+ thread_collect_max_rate / (hz / 1)))) {
thread_collect_last_tick = sched_tick;
thread_collect_scan();
}
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