From owner-p4-projects@FreeBSD.ORG Mon Sep 8 04:50:43 2014 Return-Path: Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id 06D86D96; Mon, 8 Sep 2014 04:50:43 +0000 (UTC) Delivered-To: perforce@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6B2E463C for ; Mon, 8 Sep 2014 04:49:59 +0000 (UTC) Received: from skunkworks.freebsd.org (skunkworks.freebsd.org [IPv6:2001:1900:2254:2068::682:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 53AFD1BFD for ; Mon, 8 Sep 2014 04:49:59 +0000 (UTC) Received: from skunkworks.freebsd.org ([127.0.1.74]) by skunkworks.freebsd.org (8.14.9/8.14.9) with ESMTP id s884nx5b022646 for ; Mon, 8 Sep 2014 04:49:59 GMT (envelope-from jhb@freebsd.org) Received: (from perforce@localhost) by skunkworks.freebsd.org (8.14.9/8.14.9/Submit) id s884nx76022643 for perforce@freebsd.org; Mon, 8 Sep 2014 04:49:59 GMT (envelope-from jhb@freebsd.org) Date: Mon, 8 Sep 2014 04:49:59 GMT Message-Id: <201409080449.s884nx76022643@skunkworks.freebsd.org> X-Authentication-Warning: skunkworks.freebsd.org: perforce set sender to jhb@freebsd.org using -f From: John Baldwin Subject: PERFORCE change 1199016 for review To: Perforce Change Reviews Precedence: bulk X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.18-1 List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Sep 2014 04:50:43 -0000 http://p4web.freebsd.org/@@1199016?ac=10 Change 1199016 by jhb@jhb_ralph on 2014/08/21 20:24:44 Store a timestamp in the kinfo_proc structure. Instead of storing a full timeval, just store a raw microseconds value as an int. Note that we don't care about wrapping as the point of the stamp is to compute a delta between updates. Affected files ... .. //depot/projects/smpng/sys/kern/kern_proc.c#135 edit .. //depot/projects/smpng/sys/sys/user.h#58 edit Differences ... ==== //depot/projects/smpng/sys/kern/kern_proc.c#135 (text+ko) ==== @@ -790,6 +790,7 @@ struct session *sp; struct ucred *cred; struct sigacts *ps; + struct timeval uptime; PROC_LOCK_ASSERT(p, MA_OWNED); bzero(kp, sizeof(*kp)); @@ -870,6 +871,9 @@ kp->ki_fibnum = p->p_fibnum; kp->ki_start = p->p_stats->p_start; timevaladd(&kp->ki_start, &boottime); + microuptime(&uptime); + /* Wrapping is ok as this is only used to compute deltas. */ + kp->ki_stamp = uptime.tv_sec * 1000000 + uptime.tv_usec; PROC_SLOCK(p); rufetch(p, &kp->ki_rusage); kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime); ==== //depot/projects/smpng/sys/sys/user.h#58 (text+ko) ==== @@ -84,7 +84,7 @@ * it in two places: function fill_kinfo_proc in sys/kern/kern_proc.c and * function kvm_proclist in lib/libkvm/kvm_proc.c . */ -#define KI_NSPARE_INT 7 +#define KI_NSPARE_INT 6 #define KI_NSPARE_LONG 12 #define KI_NSPARE_PTR 6 @@ -187,6 +187,7 @@ */ char ki_sparestrings[50]; /* spare string space */ int ki_spareints[KI_NSPARE_INT]; /* spare room for growth */ + u_int ki_stamp; /* timestamp of record (usec) */ int ki_flag2; /* P2_* flags */ int ki_fibnum; /* Default FIB number */ u_int ki_cr_flags; /* Credential flags */