From nobody Tue Feb 10 13:16:34 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1681998590; cv=none; d=zohomail.com; s=zohoarc; b=lbhfGXAKrkhy+YAuhVSiGmrgYP+tbOEOMAffoMIfnS+4alFba5mIzsPCBppL/kHZb6LjVws95uyyqSjbaEpxyFWwQ2RpFP8e8+NJ7DsgqU+ItMYxQU/5wYW9iNb/FxQuSuDhFeCwIMlAggvrrAU8CDTEDWPaOh2w+6H0YhGF0yk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1681998590; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=OdMgciJEsSJpPUiCd7sIA+b04BtnzB7EKKPkEXASq3E=; b=L4ym846TpX1eXwKaCPTVd7HqKFRMJFeuuJGy+fEaWPO+oeZWjUXaViwL2CnjShQBIB2hpDkI0YsSFWJpvh8G/F+153oFHaUHwomEgGL9vx2ndT5n4jgpJfQ8f20cHWvFpks/qEKVJvA0lJrvJAbgm0scmkkoGKtCfqVXezayY4A= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1681998590329667.0280937998217; Thu, 20 Apr 2023 06:49:50 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ppUXz-0006oF-Dg; Thu, 20 Apr 2023 09:42:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppUXZ-0006DH-7D for qemu-devel@nongnu.org; Thu, 20 Apr 2023 09:41:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppUXV-00069P-Mq for qemu-devel@nongnu.org; Thu, 20 Apr 2023 09:41:36 -0400 Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-19-dJXP0Ii0NLupfgozmxkJbQ-1; Thu, 20 Apr 2023 09:41:25 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 596B5381D4CC; Thu, 20 Apr 2023 13:41:25 +0000 (UTC) Received: from secure.mitica (unknown [10.39.192.171]) by smtp.corp.redhat.com (Postfix) with ESMTP id C0DAF4020BF1; Thu, 20 Apr 2023 13:41:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1681998090; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OdMgciJEsSJpPUiCd7sIA+b04BtnzB7EKKPkEXASq3E=; b=Z9C6QYgmf4lpXl4ZvNke7GoIYn4NAZAKHydD14qbysKL/2RYVtbDBhCxNStkMjsBavl2F8 LE7mP0JCDPT1ZM30wY5A+lrRwKT/YKjXAKzvHjIbdkEfl7EZvkqbbPBbKvGf3PMfLa0jeB Jxwi/+OzGYbfqd9dCTCltLPBm7id2ac= X-MC-Unique: dJXP0Ii0NLupfgozmxkJbQ-1 From: Juan Quintela To: qemu-devel@nongnu.org Cc: Peter Xu , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , David Hildenbrand , John Snow , Fam Zheng , Hailiang Zhang , "Michael S. Tsirkin" , qemu-block@nongnu.org, Gerd Hoffmann , Vladimir Sementsov-Ogievskiy , Leonardo Bras , Markus Armbruster , Stefan Hajnoczi , Juan Quintela , Eric Blake Subject: [PATCH v2 27/43] migration: Create migrate_cpu_throttle_tailslow() function Date: Thu, 20 Apr 2023 15:39:46 +0200 Message-Id: <20230420134002.29531-28-quintela@redhat.com> In-Reply-To: <20230420134002.29531-1-quintela@redhat.com> References: <20230420134002.29531-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1681998591038100001 Content-Type: text/plain; charset="utf-8" Signed-off-by: Juan Quintela Reviewed-by: Fabiano Rosas --- migration/options.c | 9 +++++++++ migration/options.h | 1 + migration/ram.c | 3 +-- 3 files changed, 11 insertions(+), 2 deletions(-) diff --git a/migration/options.c b/migration/options.c index e31d907d3d..a111d0d43f 100644 --- a/migration/options.c +++ b/migration/options.c @@ -527,6 +527,15 @@ uint8_t migrate_cpu_throttle_initial(void) return s->parameters.cpu_throttle_initial; } =20 +bool migrate_cpu_throttle_tailslow(void) +{ + MigrationState *s; + + s =3D migrate_get_current(); + + return s->parameters.cpu_throttle_tailslow; +} + int migrate_decompress_threads(void) { MigrationState *s; diff --git a/migration/options.h b/migration/options.h index 49b29bdafd..99f6bbd7a1 100644 --- a/migration/options.h +++ b/migration/options.h @@ -52,6 +52,7 @@ int migrate_compress_threads(void); int migrate_compress_wait_thread(void); uint8_t migrate_cpu_throttle_increment(void); uint8_t migrate_cpu_throttle_initial(void); +bool migrate_cpu_throttle_tailslow(void); int migrate_decompress_threads(void); uint8_t migrate_max_cpu_throttle(void); int64_t migrate_max_postcopy_bandwidth(void); diff --git a/migration/ram.c b/migration/ram.c index c29c47f94d..3862ec0853 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -711,10 +711,9 @@ static size_t save_page_header(PageSearchStatus *pss, = QEMUFile *f, static void mig_throttle_guest_down(uint64_t bytes_dirty_period, uint64_t bytes_dirty_threshold) { - MigrationState *s =3D migrate_get_current(); uint64_t pct_initial =3D migrate_cpu_throttle_initial(); uint64_t pct_increment =3D migrate_cpu_throttle_increment(); - bool pct_tailslow =3D s->parameters.cpu_throttle_tailslow; + bool pct_tailslow =3D migrate_cpu_throttle_tailslow(); int pct_max =3D migrate_max_cpu_throttle(); =20 uint64_t throttle_now =3D cpu_throttle_get_percentage(); --=20 2.39.2