From: Changwoo Min Date: Tue, 4 Feb 2025 05:20:52 +0000 (+0900) Subject: sched_ext: Add an event, SCX_EV_BYPASS_ACTIVATE X-Git-Tag: io_uring-6.15-20250403~149^2~38 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=4f7a38c7c917436bb40f10c251a1a973e2f1ada8;p=linux-block.git sched_ext: Add an event, SCX_EV_BYPASS_ACTIVATE Add a core event, SCX_EV_BYPASS_ACTIVATE, which represents how many times the bypass mode has been triggered. Signed-off-by: Changwoo Min Signed-off-by: Tejun Heo --- diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index c72ba405a1d3..377c2e99cf4f 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -1467,6 +1467,11 @@ struct scx_event_stats { * is dispatched to a local DSQ when exiting. */ u64 SCX_EV_ENQ_SKIP_EXITING; + + /* + * The number of times the bypassing mode has been activated. + */ + u64 SCX_EV_BYPASS_ACTIVATE; }; /* @@ -4399,6 +4404,7 @@ static void scx_ops_bypass(bool bypass) WARN_ON_ONCE(scx_ops_bypass_depth <= 0); if (scx_ops_bypass_depth != 1) goto unlock; + scx_add_event(SCX_EV_BYPASS_ACTIVATE, 1); } else { scx_ops_bypass_depth--; WARN_ON_ONCE(scx_ops_bypass_depth < 0); @@ -4994,6 +5000,7 @@ static void scx_dump_state(struct scx_exit_info *ei, size_t dump_len) scx_dump_event(s, &events, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE); scx_dump_event(s, &events, SCX_EV_DISPATCH_KEEP_LAST); scx_dump_event(s, &events, SCX_EV_ENQ_SKIP_EXITING); + scx_dump_event(s, &events, SCX_EV_BYPASS_ACTIVATE); if (seq_buf_has_overflowed(&s) && dump_len >= sizeof(trunc_marker)) memcpy(ei->dump + dump_len - sizeof(trunc_marker), @@ -7131,6 +7138,7 @@ __bpf_kfunc void scx_bpf_events(struct scx_event_stats *events, scx_agg_event(&e_sys, e_cpu, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE); scx_agg_event(&e_sys, e_cpu, SCX_EV_DISPATCH_KEEP_LAST); scx_agg_event(&e_sys, e_cpu, SCX_EV_ENQ_SKIP_EXITING); + scx_agg_event(&e_sys, e_cpu, SCX_EV_BYPASS_ACTIVATE); } /*