From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86F57C43441 for ; Tue, 13 Nov 2018 12:08:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5497322360 for ; Tue, 13 Nov 2018 12:08:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5497322360 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732859AbeKMWGP (ORCPT ); Tue, 13 Nov 2018 17:06:15 -0500 Received: from mx2.suse.de ([195.135.220.15]:47354 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732565AbeKMWGP (ORCPT ); Tue, 13 Nov 2018 17:06:15 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 1DF89B00B; Tue, 13 Nov 2018 12:08:23 +0000 (UTC) Date: Tue, 13 Nov 2018 13:08:21 +0100 From: Jean Delvare To: Thomas Zimmermann Cc: Takashi Iwai , David Airlie , christian.koenig@amd.com, dri-devel , linux-kernel Subject: Re: Performance regression in ast drm driver Message-ID: <20181113130821.2a7694a6@endymion> In-Reply-To: <89ae9adf-27e7-ae80-639c-c67202a0d0b7@suse.de> References: <20181101162707.598c1718@endymion> <20181108130509.3b2d42ff@endymion> <1542033367.2661.33.camel@suse.de> <1542040904.2661.35.camel@suse.de> <89ae9adf-27e7-ae80-639c-c67202a0d0b7@suse.de> Organization: SUSE Linux X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.31; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, On Tue, 13 Nov 2018 10:23:45 +0100, Thomas Zimmermann wrote: > ast doesn't remove the vesafb's framebuffer before attaching to the > device. I have a patch at [1]. If you have a way of testing it, I'd > appreciate. > > [1] https://bugzilla.suse.com/show_bug.cgi?id=1112963 Thank you very much for looking into this bug. I tested the patch above and yes, it solves my console performance problem. The performance with your patch applied is roughly the same as with commit "drm/drivers: add support for using the arch wc mapping API" reverted. -- Jean Delvare SUSE L3 Support