From patchwork Mon May 6 06:56:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 10930507 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8E3D2912 for ; Mon, 6 May 2019 06:58:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 74DFE28628 for ; Mon, 6 May 2019 06:58:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6952C2863E; Mon, 6 May 2019 06:58:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 072082861E for ; Mon, 6 May 2019 06:58:33 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hNXYn-0002Jo-Ae; Mon, 06 May 2019 06:57:13 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hNXYh-00026W-3w for xen-devel@lists.xenproject.org; Mon, 06 May 2019 06:57:07 +0000 X-Inumbo-ID: 26267acc-6fcc-11e9-843c-bc764e045a96 Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 26267acc-6fcc-11e9-843c-bc764e045a96; Mon, 06 May 2019 06:57:02 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7FC76AF31; Mon, 6 May 2019 06:56:56 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Date: Mon, 6 May 2019 08:56:28 +0200 Message-Id: <20190506065644.7415-30-jgross@suse.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190506065644.7415-1-jgross@suse.com> References: <20190506065644.7415-1-jgross@suse.com> Subject: [Xen-devel] [PATCH RFC V2 29/45] xen/sched: add runstate counters to struct sched_item X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Tim Deegan , Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Dario Faggioli , Julien Grall , Jan Beulich MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add counters to struct sched_item summing up runstates of associated vcpus. Signed-off-by: Juergen Gross --- RFC V2: add counters for each possible runstate --- xen/common/schedule.c | 6 ++++++ xen/include/xen/sched.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/xen/common/schedule.c b/xen/common/schedule.c index bc0554f2da..67871b6618 100644 --- a/xen/common/schedule.c +++ b/xen/common/schedule.c @@ -174,6 +174,7 @@ static inline void vcpu_runstate_change( struct vcpu *v, int new_state, s_time_t new_entry_time) { s_time_t delta; + struct sched_item *item = v->sched_item; ASSERT(v->runstate.state != new_state); ASSERT(spin_is_locked(per_cpu(sched_res, v->processor)->schedule_lock)); @@ -182,6 +183,9 @@ static inline void vcpu_runstate_change( trace_runstate_change(v, new_state); + item->runstate_cnt[v->runstate.state]--; + item->runstate_cnt[new_state]++; + delta = new_entry_time - v->runstate.state_entry_time; if ( delta > 0 ) { @@ -359,6 +363,8 @@ int sched_init_vcpu(struct vcpu *v) if ( (item = sched_alloc_item(v)) == NULL ) return 1; + item->runstate_cnt[v->runstate.state]++; + if ( is_idle_domain(d) ) processor = v->vcpu_id; else diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h index 8052f98780..571631f217 100644 --- a/xen/include/xen/sched.h +++ b/xen/include/xen/sched.h @@ -272,6 +272,8 @@ struct sched_item { uint64_t last_run_time; /* Last time item got (de-)scheduled. */ uint64_t state_entry_time; + /* Vcpu state summary. */ + unsigned int runstate_cnt[4]; /* Currently running on a CPU? */ bool is_running;