* [PATCH] tools/sched_ext/scx_userland: fix stale data on restart.
@ 2026-02-14 8:00 David Carlier
2026-02-17 7:04 ` Tejun Heo
0 siblings, 1 reply; 2+ messages in thread
From: David Carlier @ 2026-02-14 8:00 UTC (permalink / raw)
To: Tejun Heo, David Vernet, Andrea Righi; +Cc: linux-kernel, David Carlier
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
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2026-02-14 8:00 [PATCH] tools/sched_ext/scx_userland: fix stale data on restart David Carlier
2026-02-17 7:04 ` Tejun Heo
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