From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:37191) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwQUt-0007N1-0v for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gwQUp-0002hK-9T for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40086) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gwQUp-0001OU-2r for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:03 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 922F23DE10 for ; Wed, 20 Feb 2019 11:56:46 +0000 (UTC) From: Juan Quintela Date: Wed, 20 Feb 2019 12:56:09 +0100 Message-Id: <20190220115611.3192-7-quintela@redhat.com> In-Reply-To: <20190220115611.3192-1-quintela@redhat.com> References: <20190220115611.3192-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v2 6/8] multifd: Change default packet size List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Thomas Huth , Paolo Bonzini , Eric Blake , Laurent Vivier , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster We moved from 64KB to 512KB, as it makes less locking contention without any downside in testing. Signed-off-by: Juan Quintela --- migration/ram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/ram.c b/migration/ram.c index 75a8fc21f8..d57db00ce4 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -521,7 +521,7 @@ exit: #define MULTIFD_FLAG_SYNC (1 << 0) =20 /* This value needs to be a multiple of qemu_target_page_size() */ -#define MULTIFD_PACKET_SIZE (64 * 1024) +#define MULTIFD_PACKET_SIZE (512 * 1024) =20 typedef struct { uint32_t magic; --=20 2.20.1