diff options
| author | Changwoo Min <changwoo@igalia.com> | 2025-02-04 14:20:57 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-02-04 10:36:47 -1000 |
| commit | 2494e555fbaadf1b02eb89f3bee0cec95516f6c2 (patch) | |
| tree | aa0d2a0af48de7bdf43277cfae430061ee1e33e8 /tools/sched_ext/scx_qmap.bpf.c | |
| parent | 6df93804b718ec9741f056dae777f12332d54002 (diff) | |
sched_ext: Print core event count in scx_qmap scheduler
Modify the scx_qmap scheduler to print the core event counter
every second.
Signed-off-by: Changwoo Min <changwoo@igalia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/sched_ext/scx_qmap.bpf.c')
| -rw-r--r-- | tools/sched_ext/scx_qmap.bpf.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/sched_ext/scx_qmap.bpf.c b/tools/sched_ext/scx_qmap.bpf.c index 3a20bb0c014a..5edb79742e37 100644 --- a/tools/sched_ext/scx_qmap.bpf.c +++ b/tools/sched_ext/scx_qmap.bpf.c @@ -763,6 +763,8 @@ static void dump_shared_dsq(void) static int monitor_timerfn(void *map, int *key, struct bpf_timer *timer) { + struct scx_event_stats events; + bpf_rcu_read_lock(); dispatch_highpri(true); bpf_rcu_read_unlock(); @@ -772,6 +774,23 @@ static int monitor_timerfn(void *map, int *key, struct bpf_timer *timer) if (print_shared_dsq) dump_shared_dsq(); + scx_bpf_events(&events, sizeof(events)); + + bpf_printk("%35s: %llu\n", "SCX_EV_SELECT_CPU_FALLBACK", + scx_read_event(&events, SCX_EV_SELECT_CPU_FALLBACK)); + bpf_printk("%35s: %llu\n", "SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE", + scx_read_event(&events, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE)); + bpf_printk("%35s: %llu\n", "SCX_EV_DISPATCH_KEEP_LAST", + scx_read_event(&events, SCX_EV_DISPATCH_KEEP_LAST)); + bpf_printk("%35s: %llu\n", "SCX_EV_ENQ_SKIP_EXITING", + scx_read_event(&events, SCX_EV_ENQ_SKIP_EXITING)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_DURATION", + scx_read_event(&events, SCX_EV_BYPASS_DURATION)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_DISPATCH", + scx_read_event(&events, SCX_EV_BYPASS_DISPATCH)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_ACTIVATE", + scx_read_event(&events, SCX_EV_BYPASS_ACTIVATE)); + bpf_timer_start(timer, ONE_SEC_IN_NS, 0); return 0; } |