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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,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 C1DE1C433B4 for ; Thu, 13 May 2021 15:48:21 +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 4866D6135A for ; Thu, 13 May 2021 15:48:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4866D6135A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 560D66E0A0; Thu, 13 May 2021 15:48:20 +0000 (UTC) Received: from mail-oi1-x229.google.com (mail-oi1-x229.google.com [IPv6:2607:f8b0:4864:20::229]) by gabe.freedesktop.org (Postfix) with ESMTPS id DDFBB6E0A0; Thu, 13 May 2021 15:48:19 +0000 (UTC) Received: by mail-oi1-x229.google.com with SMTP id b25so20494808oic.0; Thu, 13 May 2021 08:48:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=+GO5+w645EiHITr/D4zuPstDFbJ45XRhHBEeznWAnxE=; b=Pc/1ZPjPEZdzKdjt5Ea89gfUdj420I59XZPx3t+i/VGxjG/F9vpIh0f7+bwNOxOdAO WJ5RpfpeD3YzAp5+wBwxogZyQHqQr8sGq4NblTm3OGWnkrsuXoEBWGFg9KwMltCBvdtV UpkGjwrSslMkNqZNQ9PMGbKXmVyRIC7j3camNIaNzkA+VqnmtBx+RQEddIdavn1VOwm9 g/rsy74Aq4+m+IflNuajaE1S3/BjIL66GwPZ8EGRqMQFQMQ9B3F6s/5W/xXzhuPNAwo4 BPCNFJuDWPpnumWVniLb1ObmZ751yUHM8c7uSkP8DR1Bw6VtjZkFlCVTrbzst8gYly1p b7aw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=+GO5+w645EiHITr/D4zuPstDFbJ45XRhHBEeznWAnxE=; b=N7Z/U4xgylZytEh1z/q9jWCEIXNjVs+EqaNJrf4JddpE/R1OF9dXnrcbZgGj6CH1nK zIlekuL6dy9HmKzqmTEmTROirEWmFQMZ9YlsuKlAyX1zfp1wVd7aSYvWKTbfP003SpMY JvJLn2i2bstA0vaJCUcWRP6/yhze7Es+MyvrlP2VLudPZc7vto6Gj8KKRAhtNfP1uKEw xVCfz+8OmcDYBJZodL2QLlfWnStB1RcAYeOC5mna7tAtUZD8LS361Go+AVghDZigJ1K2 ey8FW9s61DdCk6hZMt2cZXD4o0C5aFpROFtZzMAKlV1V0xQbU615pGNcCEAuRGgqYrWZ PAzA== X-Gm-Message-State: AOAM530GHhXLcFWfI4LaYULs7dyTmJMNao4KAeQa1mxAqAd5Ybhli129 vZyLDNw1B0VlBbUoqPwoy1UuqSVLaa0Lz4Pg1u4= X-Google-Smtp-Source: ABdhPJwY6uEThQsc3EFeTI1GnbRzZ9lVdaczR5rcISuQLxuLpvEys8HSJh0ePR/DkZTRuU7kkgR+H5rGH9bMwVQG39g= X-Received: by 2002:aca:fc50:: with SMTP id a77mr30942408oii.123.1620920899101; Thu, 13 May 2021 08:48:19 -0700 (PDT) MIME-Version: 1.0 References: <20210513110002.3641705-1-tvrtko.ursulin@linux.intel.com> In-Reply-To: <20210513110002.3641705-1-tvrtko.ursulin@linux.intel.com> From: Alex Deucher Date: Thu, 13 May 2021 11:48:08 -0400 Message-ID: Subject: Re: [PATCH 0/7] Per client engine busyness To: Tvrtko Ursulin Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel Graphics Development , Maling list - DRI developers Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Thu, May 13, 2021 at 7:00 AM Tvrtko Ursulin wrote: > > From: Tvrtko Ursulin > > Resurrect of the previosuly merged per client engine busyness patches. In= a > nutshell it enables intel_gpu_top to be more top(1) like useful and show = not > only physical GPU engine usage but per process view as well. > > Example screen capture: > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~~~~ > intel-gpu-top - 906/ 955 MHz; 0% RC6; 5.30 Watts; 933 irqs/s > > IMC reads: 4414 MiB/s > IMC writes: 3805 MiB/s > > ENGINE BUSY MI_SEMA M= I_WAIT > Render/3D/0 93.46% |=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88= =E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2= =96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96= =88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88= =E2=96=88=E2=96=88=E2=96=8B | 0% 0% > Blitter/0 0.00% | | 0% = 0% > Video/0 0.00% | | 0% = 0% > VideoEnhance/0 0.00% | | 0% = 0% > > PID NAME Render/3D Blitter Video VideoEnha= nce > 2733 neverball |=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2=96=88=E2= =96=88=E2=96=8C || || || | > 2047 Xorg |=E2=96=88=E2=96=88=E2=96=88=E2=96=8A || = || || | > 2737 glxgears |=E2=96=88=E2=96=8D || || = || | > 2128 xfwm4 | || || || = | > 2047 Xorg | || || || = | > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~~~~ > > Internally we track time spent on engines for each struct intel_context, = both > for current and past contexts belonging to each open DRM file. > > This can serve as a building block for several features from the wanted l= ist: > smarter scheduler decisions, getrusage(2)-like per-GEM-context functional= ity > wanted by some customers, setrlimit(2) like controls, cgroups controller, > dynamic SSEU tuning, ... > > To enable userspace access to the tracked data, we expose time spent on G= PU per > client and per engine class in sysfs with a hierarchy like the below: > > # cd /sys/class/drm/card0/clients/ > # tree > . > =E2=94=9C=E2=94=80=E2=94=80 7 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 busy > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 0 > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 1 > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 2 > =E2=94=82 =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 3 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 name > =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 pid > =E2=94=9C=E2=94=80=E2=94=80 8 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 busy > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 0 > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 1 > =E2=94=82 =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 2 > =E2=94=82 =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 3 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 name > =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 pid > =E2=94=94=E2=94=80=E2=94=80 9 > =E2=94=9C=E2=94=80=E2=94=80 busy > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 0 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 1 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 2 > =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 3 > =E2=94=9C=E2=94=80=E2=94=80 name > =E2=94=94=E2=94=80=E2=94=80 pid > > Files in 'busy' directories are numbered using the engine class ABI value= s and > they contain accumulated nanoseconds each client spent on engines of a > respective class. We did something similar in amdgpu using the gpu scheduler. We then expose the data via fdinfo. See https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3D1774baa64f9395fa884e= a9ed494bcb043f3b83f5 https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3D874442541133f78c78b6= 880b8cc495bab5c61704 Alex > > Tvrtko Ursulin (7): > drm/i915: Expose list of clients in sysfs > drm/i915: Update client name on context create > drm/i915: Make GEM contexts track DRM clients > drm/i915: Track runtime spent in closed and unreachable GEM contexts > drm/i915: Track all user contexts per client > drm/i915: Track context current active time > drm/i915: Expose per-engine client busyness > > drivers/gpu/drm/i915/Makefile | 5 +- > drivers/gpu/drm/i915/gem/i915_gem_context.c | 61 ++- > .../gpu/drm/i915/gem/i915_gem_context_types.h | 16 +- > drivers/gpu/drm/i915/gt/intel_context.c | 27 +- > drivers/gpu/drm/i915/gt/intel_context.h | 15 +- > drivers/gpu/drm/i915/gt/intel_context_types.h | 24 +- > .../drm/i915/gt/intel_execlists_submission.c | 23 +- > .../gpu/drm/i915/gt/intel_gt_clock_utils.c | 4 + > drivers/gpu/drm/i915/gt/intel_lrc.c | 27 +- > drivers/gpu/drm/i915/gt/intel_lrc.h | 24 ++ > drivers/gpu/drm/i915/gt/selftest_lrc.c | 10 +- > drivers/gpu/drm/i915/i915_drm_client.c | 365 ++++++++++++++++++ > drivers/gpu/drm/i915/i915_drm_client.h | 123 ++++++ > drivers/gpu/drm/i915/i915_drv.c | 6 + > drivers/gpu/drm/i915/i915_drv.h | 5 + > drivers/gpu/drm/i915/i915_gem.c | 21 +- > drivers/gpu/drm/i915/i915_gpu_error.c | 31 +- > drivers/gpu/drm/i915/i915_gpu_error.h | 2 +- > drivers/gpu/drm/i915/i915_sysfs.c | 8 + > 19 files changed, 716 insertions(+), 81 deletions(-) > create mode 100644 drivers/gpu/drm/i915/i915_drm_client.c > create mode 100644 drivers/gpu/drm/i915/i915_drm_client.h > > -- > 2.30.2 > 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=-10.5 required=3.0 tests=BAYES_00, 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Thu, 13 May 2021 08:48:19 -0700 (PDT) MIME-Version: 1.0 References: <20210513110002.3641705-1-tvrtko.ursulin@linux.intel.com> In-Reply-To: <20210513110002.3641705-1-tvrtko.ursulin@linux.intel.com> From: Alex Deucher Date: Thu, 13 May 2021 11:48:08 -0400 Message-ID: To: Tvrtko Ursulin Subject: Re: [Intel-gfx] [PATCH 0/7] Per client engine busyness 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 Graphics Development , Maling list - DRI developers Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" T24gVGh1LCBNYXkgMTMsIDIwMjEgYXQgNzowMCBBTSBUdnJ0a28gVXJzdWxpbgo8dHZydGtvLnVy c3VsaW5AbGludXguaW50ZWwuY29tPiB3cm90ZToKPgo+IEZyb206IFR2cnRrbyBVcnN1bGluIDx0 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