From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:55067) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1grNBG-0006Wq-9l for qemu-devel@nongnu.org; Wed, 06 Feb 2019 08:23:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1grNBF-0007eZ-Jj for qemu-devel@nongnu.org; Wed, 06 Feb 2019 08:23:58 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43220) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1grNBF-0007eT-Ef for qemu-devel@nongnu.org; Wed, 06 Feb 2019 08:23:57 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C9BCF7F6C8 for ; Wed, 6 Feb 2019 13:23:56 +0000 (UTC) From: Juan Quintela Date: Wed, 6 Feb 2019 14:23:28 +0100 Message-Id: <20190206132331.1694-2-quintela@redhat.com> In-Reply-To: <20190206132331.1694-1-quintela@redhat.com> References: <20190206132331.1694-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH 1/4] multifd: Change page count default to 128 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Juan Quintela , Markus Armbruster , Thomas Huth , Paolo Bonzini , Laurent Vivier , Eric Blake , "Dr. David Alan Gilbert" I haven't seend any problem about using 64 or 128. And it make much less contention on the locks. Just change it. Signed-off-by: Juan Quintela --- migration/migration.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/migration.c b/migration/migration.c index ef1d53cde2..f673486679 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -81,7 +81,7 @@ /* The delay time (in ms) between two COLO checkpoints */ #define DEFAULT_MIGRATE_X_CHECKPOINT_DELAY (200 * 100) #define DEFAULT_MIGRATE_MULTIFD_CHANNELS 2 -#define DEFAULT_MIGRATE_MULTIFD_PAGE_COUNT 16 +#define DEFAULT_MIGRATE_MULTIFD_PAGE_COUNT 128 =20 /* Background transfer rate for postcopy, 0 means unlimited, note * that page requests can still exceed this limit. --=20 2.20.1