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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A737FC433EF for ; Mon, 29 Nov 2021 22:43:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235507AbhK2WqW (ORCPT ); Mon, 29 Nov 2021 17:46:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234591AbhK2Wpi (ORCPT ); Mon, 29 Nov 2021 17:45:38 -0500 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8C90C20146A for ; Mon, 29 Nov 2021 11:15:09 -0800 (PST) Received: by mail-ed1-x533.google.com with SMTP id x6so76009378edr.5 for ; Mon, 29 Nov 2021 11:15:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=34kTiDZ4RjGEi4sG0MFR2e5l+WgUm717YmCjkndh+wY=; b=VcdTvdC5xUpXrzNOzNvUm3x96UYyR9ZkVjTYnOpIwX3R3blY/3lXnA1nwxokez2oEf jvWw7R1jFsXXZXSjRrqdIZJFGCg6BITa/u4zt0swuK6SGHHNlYh1P91ywUR3TNmYotde fVtZqKnO3+Q66oaJHCSok6p9lQEGWiwUSMdaI38wR5YxVgxVRWb4xSe7Y5cFDa7q7qVB 1gl4oTAoj40hPC5buj2fr6YzHBMv+Tsx1hN2FIfoAJswbgfbyduAugMet4B4VwpEg3iu vfcv4EW66TYxd8lb7ZqRl7zbUYXXxYlKYzDolZVSSiZZPyaDXQMeN1ZIRzSV+1fqmCsS afpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :subject:content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=34kTiDZ4RjGEi4sG0MFR2e5l+WgUm717YmCjkndh+wY=; b=M3cxEdSivXzMQ+jgrlDbi2J8JRIfJpFySoouEo5W/QBxMHCxh6AWPhBpbTtpH9mYNJ C23UUZANryohBZBrWxHVEC9jioxo5rEi2QsTKuuXsNUUvVhonxPMZ7Y1l9autBOdlobs Y3F/uOqEz8sz0GxaLa2fyhMtl5fx7zTfOzR4qIIOzKNG7nL5l3I10vVk8iLEYHFLwwBB w99IG1lYTKb1C3bXqXb0v0O1cF5AekXBu//m3HSHTsmSKf6q4s6ThXpqcFNzaUP4bZiA rLdznKt4l+70AeRRguZ6wkygtTfv9oSHD1r+YPCAM3o8bW9kgRbsn2agfRQElagLMn4B 1EIA== X-Gm-Message-State: AOAM530/wZhNx3r2j42tW+1pJQZO+M1Na/y971igyiRTPIiazoCJXrXG 5Dfz/CvK3hudkecv0K+qUe6mqjpE288= X-Google-Smtp-Source: ABdhPJz0Lpj0Y2aD23cN4rA91hwwdQeGvk29FJGvvYHQ86xejgbvaBsgIdWc0LvBBXfXRVp3aQFFLg== X-Received: by 2002:a17:906:d54d:: with SMTP id cr13mr17814752ejc.72.1638213308404; Mon, 29 Nov 2021 11:15:08 -0800 (PST) Received: from ?IPV6:2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e? ([2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e]) by smtp.googlemail.com with ESMTPSA id y19sm10835949edc.17.2021.11.29.11.15.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Nov 2021 11:15:07 -0800 (PST) Sender: Paolo Bonzini Message-ID: Date: Mon, 29 Nov 2021 20:15:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [kvm-unit-tests PATCH 00/39] x86/access: nVMX: Big overhaul Content-Language: en-US To: Sean Christopherson Cc: kvm@vger.kernel.org References: <20211125012857.508243-1-seanjc@google.com> <34ff357d-c073-4a68-117d-63ccff1085cb@redhat.com> From: Paolo Bonzini In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 11/29/21 20:04, Sean Christopherson wrote: >> Queued, thanks. The new tests are pretty slow on debug kernels (about 3 >> minutes each). I'll check next week if there's any low hanging fruit---or >> anything broken. > Hrm, by "debug kernels", do you mean with KASAN, UBSAN, etc...? I don't think I > tested those. And with or without EPT enabled? It's a normal Fedora rawhide kernel config. It doesn't have KASAN/UBSAN/KCSAN but it has lockdep (including CONFIG_PROVE_RCU), CONFIG_DEBUG_VM, CONFIG_DEBUG_LIST, etc. I will gather a profile just in case it's something egregious. Paolo > The tests are definitely much slower than the base access test and its nVMX variant > as they trigger exits on every INVLPG, but three minutes is a bit extreme. >