From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:57350) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hFhIX-00005A-7K for qemu-devel@nongnu.org; Sun, 14 Apr 2019 11:44:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hFhIW-0002wh-EY for qemu-devel@nongnu.org; Sun, 14 Apr 2019 11:44:01 -0400 References: <1555103178-21894-1-git-send-email-atar4qemu@gmail.com> <1555103178-21894-4-git-send-email-atar4qemu@gmail.com> From: =?UTF-8?Q?Herv=c3=a9_Poussineau?= Message-ID: Date: Sun, 14 Apr 2019 17:43:55 +0200 MIME-Version: 1.0 In-Reply-To: <1555103178-21894-4-git-send-email-atar4qemu@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] [PATCH 3/4] target/ppc: improve performance of large BAT invalidations List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Artyom Tarasenko , qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, David Gibson Le 12/04/2019 à 23:06, Artyom Tarasenko a écrit : > Performing a complete flush is ~ 100 times faster than flushing > 256MiB of 4KiB pages. Set a limit of 1024 pages and perform a complete > flush afterwards. > > This patch significantly speeds up AIX 5.1 and NetBSD-ofppc. > > Signed-off-by: Artyom Tarasenko > --- > target/ppc/mmu_helper.c | 7 +++++++ > 1 file changed, 7 insertions(+) Reviewed-by: Hervé Poussineau