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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 DB94AC433DB for ; Tue, 26 Jan 2021 21:21:08 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5FF5122240 for ; Tue, 26 Jan 2021 21:21:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FF5122240 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ECCE389C84; Tue, 26 Jan 2021 21:21:07 +0000 (UTC) Received: from fireflyinternet.com (unknown [77.68.26.236]) by gabe.freedesktop.org (Postfix) with ESMTPS id 632536E134 for ; Tue, 26 Jan 2021 21:21:05 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from localhost (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP (TLS) id 23708140-1500050 for multiple; Tue, 26 Jan 2021 21:20:48 +0000 MIME-Version: 1.0 In-Reply-To: References: <20210120122205.2808-1-chris@chris-wilson.co.uk> <20210120122205.2808-10-chris@chris-wilson.co.uk> From: Chris Wilson To: Andi Shyti Date: Tue, 26 Jan 2021 21:20:50 +0000 Message-ID: <161169605048.2943.1485030582286179368@build.alporthouse.com> User-Agent: alot/0.9 Subject: Re: [Intel-gfx] [PATCH 10/10] drm/i915: Improve DFS for priority inheritance X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Quoting Andi Shyti (2021-01-26 17:34:48) > Hi Chris, > > On Wed, Jan 20, 2021 at 12:22:05PM +0000, Chris Wilson wrote: > > The core of the scheduling algorithm is that we compute the topological > > order of the fence DAG. Knowing that we have a DAG, we should be able to > > use a DFS to compute the topological sort in linear time. However, > > during the conversion of the recursive algorithm into an iterative one, > > the memoization of how far we had progressed down a branch was > > memoization? I too believe it was originally misspelt ;) But that's the accepted term for this technique of storing partial results in dynamic programming. (The field is full of self-glorified terms.) https://en.wikipedia.org/wiki/Memoization -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx