From 3f8ed605dbd0ee211ce8fe59c0c072b916d6311c Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Mon, 8 Dec 2025 11:15:20 -0500 Subject: [PATCH] ruxreset: Add an inline function to reset all the stats in rusage_ext Use it in proc0_post to reset per-process CPU usage. Suggested by: olce Reviewed by: olce, kib Differential Revision: https://reviews.freebsd.org/D54049 --- sys/kern/init_main.c | 5 +---- sys/sys/proc.h | 12 ++++++++++++ 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c index 3075b222496..6495340578d 100644 --- a/sys/kern/init_main.c +++ b/sys/kern/init_main.c @@ -660,10 +660,7 @@ proc0_post(void *dummy __unused) microuptime(&p->p_stats->p_start); PROC_STATLOCK(p); rufetch(p, &ru); /* Clears thread stats */ - p->p_rux.rux_runtime = 0; - p->p_rux.rux_uticks = 0; - p->p_rux.rux_sticks = 0; - p->p_rux.rux_iticks = 0; + ruxreset(&p->p_rux); PROC_STATUNLOCK(p); FOREACH_THREAD_IN_PROC(p, td) { td->td_runtime = 0; diff --git a/sys/sys/proc.h b/sys/sys/proc.h index 23b052e2106..b27b67999e8 100644 --- a/sys/sys/proc.h +++ b/sys/sys/proc.h @@ -1326,6 +1326,18 @@ td_get_sched(struct thread *td) return ((struct td_sched *)&td[1]); } +static __inline void +ruxreset(struct rusage_ext *rux) +{ + rux->rux_runtime = 0; + rux->rux_uticks = 0; + rux->rux_sticks = 0; + rux->rux_iticks = 0; + rux->rux_uu = 0; + rux->rux_su = 0; + rux->rux_tu = 0; +} + #define PROC_ID_PID 0 #define PROC_ID_GROUP 1 #define PROC_ID_SESSION 2