[PATCH] tools/sched_ext/scx_userland: fix stale data on restart.

David Carlier posted 1 patch 1 month, 2 weeks ago
tools/sched_ext/scx_userland.c | 8 ++++++++
1 file changed, 8 insertions(+)
[PATCH] tools/sched_ext/scx_userland: fix stale data on restart.
Posted by David Carlier 1 month, 2 weeks ago
we reset all counters, tasks and vruntime_head list.

Signed-off-by: David Carlier <devnexen@gmail.com>
---
 tools/sched_ext/scx_userland.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/sched_ext/scx_userland.c b/tools/sched_ext/scx_userland.c
index 63f89b35d999..504a80824f5c 100644
--- a/tools/sched_ext/scx_userland.c
+++ b/tools/sched_ext/scx_userland.c
@@ -375,6 +375,14 @@ static void pre_bootstrap(int argc, char **argv)
 static void bootstrap(char *comm)
 {
 	exit_req = 0;
+	min_vruntime = 0.0;
+	nr_vruntime_enqueues = 0;
+	nr_vruntime_dispatches = 0;
+	nr_vruntime_failed = 0;
+	nr_curr_enqueued = 0;
+	memset(tasks, 0, pid_max * sizeof(*tasks));
+	LIST_INIT(&vruntime_head);
+
 	skel = SCX_OPS_OPEN(userland_ops, scx_userland);
 
 	skel->rodata->num_possible_cpus = libbpf_num_possible_cpus();
-- 
2.51.0
Re: [PATCH] tools/sched_ext/scx_userland: fix stale data on restart.
Posted by Tejun Heo 1 month, 2 weeks ago
Applied to sched_ext/for-7.0-fixes with minor commit message cleanup.

Thanks.

--
tejun