From nobody Tue Feb 10 10:19:06 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1507114795690878.0650939464452; Wed, 4 Oct 2017 03:59:55 -0700 (PDT) Received: from localhost ([::1]:34333 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzhP0-00078H-VG for importer@patchew.org; Wed, 04 Oct 2017 06:59:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55136) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzhCi-00054I-RK for qemu-devel@nongnu.org; Wed, 04 Oct 2017 06:47:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dzhCh-00036I-NU for qemu-devel@nongnu.org; Wed, 04 Oct 2017 06:47:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34536) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dzhCh-00035r-Et for qemu-devel@nongnu.org; Wed, 04 Oct 2017 06:47:03 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7A8F880E73 for ; Wed, 4 Oct 2017 10:47:02 +0000 (UTC) Received: from secure.mitica (ovpn-116-75.ams2.redhat.com [10.36.116.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id EEAF85D9CB; Wed, 4 Oct 2017 10:47:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 7A8F880E73 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=quintela@redhat.com From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 4 Oct 2017 12:46:34 +0200 Message-Id: <20171004104636.7963-11-quintela@redhat.com> In-Reply-To: <20171004104636.7963-1-quintela@redhat.com> References: <20171004104636.7963-1-quintela@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 04 Oct 2017 10:47:02 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v9 10/12] migration: Transfer pages over new channels X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lvivier@redhat.com, dgilbert@redhat.com, peterx@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We switch for sending the page number to send real pages. Signed-off-by: Juan Quintela -- Remove the HACK bit, now we have the function that calculates the size of a page exported. Rename multifd_pages{_now}, to sent pages Remove multifd pages field, it is the same than normal pages --- migration/migration.c | 7 ++++++- migration/ram.c | 39 +++++++++++---------------------------- 2 files changed, 17 insertions(+), 29 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 54ef095d82..1bd87a4e44 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2085,6 +2085,7 @@ static void *migration_thread(void *opaque) */ int64_t threshold_size =3D 0; int64_t qemu_file_bytes =3D 0; + int64_t sent_pages =3D 0; int64_t start_time =3D initial_time; int64_t end_time; bool old_vm_running =3D false; @@ -2173,8 +2174,11 @@ static void *migration_thread(void *opaque) current_time =3D qemu_clock_get_ms(QEMU_CLOCK_REALTIME); if (current_time >=3D initial_time + BUFFER_DELAY) { uint64_t qemu_file_bytes_now =3D qemu_ftell(s->to_dst_file); + uint64_t sent_pages_now =3D ram_counters.normal; uint64_t transferred_bytes =3D - qemu_file_bytes_now - qemu_file_bytes; + (qemu_file_bytes_now - qemu_file_bytes) + + (sent_pages_now - sent_pages) * + qemu_target_page_size(); uint64_t time_spent =3D current_time - initial_time; double bandwidth =3D (double)transferred_bytes / time_spent; threshold_size =3D bandwidth * s->parameters.downtime_limit; @@ -2194,6 +2198,7 @@ static void *migration_thread(void *opaque) qemu_file_reset_rate_limit(s->to_dst_file); initial_time =3D current_time; qemu_file_bytes =3D qemu_file_bytes_now; + sent_pages =3D sent_pages_now; } if (qemu_file_rate_limit(s->to_dst_file)) { /* usleep expects microseconds */ diff --git a/migration/ram.c b/migration/ram.c index 4c16d0775b..981f345294 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -494,21 +494,15 @@ static void *multifd_send_thread(void *opaque) if (p->pages.num) { Error *local_err =3D NULL; size_t ret; - int i; int num; =20 num =3D p->pages.num; p->pages.num =3D 0; qemu_mutex_unlock(&p->mutex); - - for (i =3D 0; i < num; i++) { - ret =3D qio_channel_write_all(p->c, - (const char *)&p->pages.iov[i].iov_base, - sizeof(uint8_t *), &local_err); - if (ret !=3D 0) { - terminate_multifd_send_threads(local_err); - return NULL; - } + ret =3D qio_channel_writev_all(p->c, p->pages.iov, num, &local= _err); + if (ret !=3D 0) { + terminate_multifd_send_threads(local_err); + return NULL; } qemu_mutex_lock(&multifd_send_state->mutex); p->done =3D true; @@ -691,7 +685,6 @@ int multifd_load_cleanup(Error **errp) static void *multifd_recv_thread(void *opaque) { MultiFDRecvParams *p =3D opaque; - uint8_t *recv_address; =20 qemu_sem_post(&p->ready); while (true) { @@ -703,27 +696,16 @@ static void *multifd_recv_thread(void *opaque) if (p->pages.num) { Error *local_err =3D NULL; size_t ret; - int i; int num; =20 num =3D p->pages.num; p->pages.num =3D 0; =20 - for (i =3D 0; i < num; i++) { - ret =3D qio_channel_read_all(p->c, (char *)&recv_address, - sizeof(uint8_t *), &local_err); - if (ret !=3D 0) { - terminate_multifd_recv_threads(local_err); - return NULL; - } - if (recv_address !=3D p->pages.iov[i].iov_base) { - error_setg(&local_err, "received %p and expecting %p (= %d)", - recv_address, p->pages.iov[i].iov_base, i); - terminate_multifd_recv_threads(local_err); - return NULL; - } + ret =3D qio_channel_readv_all(p->c, p->pages.iov, num, &local_= err); + if (ret !=3D 0) { + terminate_multifd_recv_threads(local_err); + return NULL; } - p->done =3D true; qemu_mutex_unlock(&p->mutex); qemu_sem_post(&p->ready); @@ -1288,8 +1270,10 @@ static int ram_multifd_page(RAMState *rs, PageSearch= Status *pss, offset | RAM_SAVE_FLAG_MULTIFD_PAGE); fd_num =3D multifd_send_page(p, rs->migration_dirty_pages =3D=3D 1= ); qemu_put_be16(rs->f, fd_num); + if (fd_num !=3D MULTIFD_CONTINUE) { + qemu_fflush(rs->f); + } ram_counters.transferred +=3D 2; /* size of fd_num */ - qemu_put_buffer(rs->f, p, TARGET_PAGE_SIZE); ram_counters.transferred +=3D TARGET_PAGE_SIZE; pages =3D 1; ram_counters.normal++; @@ -3155,7 +3139,6 @@ static int ram_load(QEMUFile *f, void *opaque, int ve= rsion_id) case RAM_SAVE_FLAG_MULTIFD_PAGE: fd_num =3D qemu_get_be16(f); multifd_recv_page(host, fd_num); - qemu_get_buffer(f, host, TARGET_PAGE_SIZE); break; =20 case RAM_SAVE_FLAG_EOS: --=20 2.13.5