From patchwork Wed Nov 24 10:06:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1559001 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=MjxnR7Nx; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HzcPY5Kdsz9t25 for ; Wed, 24 Nov 2021 21:17:05 +1100 (AEDT) Received: from localhost ([::1]:52066 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mppKm-0001v4-Ut for incoming@patchwork.ozlabs.org; Wed, 24 Nov 2021 05:17:02 -0500 Received: from eggs.gnu.org ([209.51.188.92]:42546) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mppCm-0003Ut-TK for qemu-devel@nongnu.org; Wed, 24 Nov 2021 05:08:44 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:40236) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mppCk-0007Tr-O2 for qemu-devel@nongnu.org; Wed, 24 Nov 2021 05:08:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1637748522; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tDJkui5JmkZ6oURN1/ZfphfLz0OL30FdAU8Jz3ql+Uc=; b=MjxnR7NxlX7eVZfTGYgce8gQ8kn4qAokFh+fBt2fM15PvxhO+y11X8KfTyb5U6ciJuoAOx 0NeMm0QKRjTJCRlN/2cDo2d711jfx3d1OIHVQTt49LhweZ1nWjfuaZh0dgcdCS08URT2VN ti9euhJrvRqblifLvY/gfZw1ta7KWZY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-216-EPXivX0TOsSbhXVxzbKwrg-1; Wed, 24 Nov 2021 05:08:41 -0500 X-MC-Unique: EPXivX0TOsSbhXVxzbKwrg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4AC5F81EE60 for ; Wed, 24 Nov 2021 10:08:40 +0000 (UTC) Received: from redhat.mitica.com (unknown [10.39.193.24]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0799260843; Wed, 24 Nov 2021 10:08:29 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Subject: [PATCH v3 21/23] multifd: Support for zero pages transmission Date: Wed, 24 Nov 2021 11:06:15 +0100 Message-Id: <20211124100617.19786-22-quintela@redhat.com> In-Reply-To: <20211124100617.19786-1-quintela@redhat.com> References: <20211124100617.19786-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=quintela@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.7, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Cc: Leonardo Bras , "Dr. David Alan Gilbert" , Peter Xu , Juan Quintela Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch adds counters and similar. Logic will be added on the following patch. Signed-off-by: Juan Quintela --- migration/multifd.h | 13 ++++++++++++- migration/multifd.c | 22 +++++++++++++++++++--- migration/trace-events | 2 +- 3 files changed, 32 insertions(+), 5 deletions(-) diff --git a/migration/multifd.h b/migration/multifd.h index 39e55d7f05..973315b545 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -49,7 +49,10 @@ typedef struct { /* size of the next packet that contains pages */ uint32_t next_packet_size; uint64_t packet_num; - uint64_t unused[4]; /* Reserved for future use */ + /* zero pages */ + uint32_t zero_pages; + uint32_t unused32[1]; /* Reserved for future use */ + uint64_t unused64[3]; /* Reserved for future use */ char ramblock[256]; uint64_t offset[]; } __attribute__((packed)) MultiFDPacket_t; @@ -117,6 +120,10 @@ typedef struct { ram_addr_t *normal; /* num of non zero pages */ uint32_t normal_num; + /* Pages that are zero */ + ram_addr_t *zero; + /* num of zero pages */ + uint32_t zero_num; /* used for compression methods */ void *data; } MultiFDSendParams; @@ -162,6 +169,10 @@ typedef struct { ram_addr_t *normal; /* num of non zero pages */ uint32_t normal_num; + /* Pages that are zero */ + ram_addr_t *zero; + /* num of zero pages */ + uint32_t zero_num; /* used for de-compression methods */ void *data; } MultiFDRecvParams; diff --git a/migration/multifd.c b/migration/multifd.c index d1ab823f98..2e4dffd6c6 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -265,6 +265,7 @@ static void multifd_send_fill_packet(MultiFDSendParams *p) packet->normal_pages = cpu_to_be32(p->normal_num); packet->next_packet_size = cpu_to_be32(p->next_packet_size); packet->packet_num = cpu_to_be64(p->packet_num); + packet->zero_pages = cpu_to_be32(p->zero_num); if (p->pages->block) { strncpy(packet->ramblock, p->pages->block->idstr, 256); @@ -327,7 +328,15 @@ static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp) p->next_packet_size = be32_to_cpu(packet->next_packet_size); p->packet_num = be64_to_cpu(packet->packet_num); - if (p->normal_num == 0) { + p->zero_num = be32_to_cpu(packet->zero_pages); + if (p->zero_num > packet->pages_alloc - p->normal_num) { + error_setg(errp, "multifd: received packet " + "with %d zero pages and expected maximum pages are %d", + p->normal_num, packet->pages_alloc - p->zero_num) ; + return -1; + } + + if (p->normal_num == 0 && p->zero_num == 0) { return 0; } @@ -550,6 +559,8 @@ void multifd_save_cleanup(void) p->iov = NULL; g_free(p->normal); p->normal = NULL; + g_free(p->zero); + p->zero = NULL; multifd_send_state->ops->send_cleanup(p, &local_err); if (local_err) { migrate_set_error(migrate_get_current(), local_err); @@ -638,6 +649,7 @@ static void *multifd_send_thread(void *opaque) uint32_t flags = p->flags; p->iovs_num = 1; p->normal_num = 0; + p->zero_num = 0; for (int i = 0; i < p->pages->num; i++) { p->normal[p->normal_num] = p->pages->offset[i]; @@ -659,8 +671,8 @@ static void *multifd_send_thread(void *opaque) p->pages->block = NULL; qemu_mutex_unlock(&p->mutex); - trace_multifd_send(p->id, packet_num, p->normal_num, flags, - p->next_packet_size); + trace_multifd_send(p->id, packet_num, p->normal_num, p->zero_num, + flags, p->next_packet_size); p->iov[0].iov_len = p->packet_len; p->iov[0].iov_base = p->packet; @@ -910,6 +922,7 @@ int multifd_save_setup(Error **errp) /* We need one extra place for the packet header */ p->iov = g_new0(struct iovec, page_count + 1); p->normal = g_new0(ram_addr_t, page_count); + p->zero = g_new0(ram_addr_t, page_count); socket_send_channel_create(multifd_new_send_channel_async, p); } @@ -1011,6 +1024,8 @@ int multifd_load_cleanup(Error **errp) p->iov = NULL; g_free(p->normal); p->normal = NULL; + g_free(p->zero); + p->zero = NULL; multifd_recv_state->ops->recv_cleanup(p); } qemu_sem_destroy(&multifd_recv_state->sem_sync); @@ -1150,6 +1165,7 @@ int multifd_load_setup(Error **errp) p->name = g_strdup_printf("multifdrecv_%d", i); p->iov = g_new0(struct iovec, page_count); p->normal = g_new0(ram_addr_t, page_count); + p->zero = g_new0(ram_addr_t, page_count); } for (i = 0; i < thread_count; i++) { diff --git a/migration/trace-events b/migration/trace-events index af8dee9af0..608decbdcc 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -124,7 +124,7 @@ multifd_recv_sync_main_wait(uint8_t id) "channel %d" multifd_recv_terminate_threads(bool error) "error %d" multifd_recv_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %d packets %" PRIu64 " pages %" PRIu64 multifd_recv_thread_start(uint8_t id) "%d" -multifd_send(uint8_t id, uint64_t packet_num, uint32_t normal, uint32_t flags, uint32_t next_packet_size) "channel %d packet_num %" PRIu64 " normal pages %d flags 0x%x next packet size %d" +multifd_send(uint8_t id, uint64_t packet_num, uint32_t normal, uint32_t zero, uint32_t flags, uint32_t next_packet_size) "channel %d packet_num %" PRIu64 " normal pages %d zero pages %d flags 0x%x next packet size %d" multifd_send_error(uint8_t id) "channel %d" multifd_send_sync_main(long packet_num) "packet num %ld" multifd_send_sync_main_signal(uint8_t id) "channel %d"