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 BE46BC43217 for ; Thu, 20 Oct 2022 07:12:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230124AbiJTHM5 (ORCPT ); Thu, 20 Oct 2022 03:12:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230030AbiJTHMx (ORCPT ); Thu, 20 Oct 2022 03:12:53 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92AFA159A16 for ; Thu, 20 Oct 2022 00:12:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666249971; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Vvc9nSeTOx+R9O1KRdNsOErR2cLTeHQp0FKXCgftjxs=; b=CcvAsuDev7iPCjmpV7AU/neC5M71gOuEEYaWRisGWyTIO7Jm2OTLCS+OIZaBQFxIBERdcw M4NwOGkAktP6AesiAFFNR/ATSdZ05/evfDL6LqIFRSzi6/P4wi0YsvEVyBItjfGbLtgmnu lJ9mXfkU3Ug5xsDfcj0jGefNj0pqZBw= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-296-nI8UtPRCNiuaY4FWD93Yig-1; Thu, 20 Oct 2022 03:12:49 -0400 X-MC-Unique: nI8UtPRCNiuaY4FWD93Yig-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 51B56101A528; Thu, 20 Oct 2022 07:12:49 +0000 (UTC) Received: from gshan.redhat.com (vpn2-54-70.bne.redhat.com [10.64.54.70]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 574EA40C6EC2; Thu, 20 Oct 2022 07:12:44 +0000 (UTC) From: Gavin Shan To: kvmarm@lists.linux.dev Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mail@maciej.szmigiero.name, maz@kernel.org, pbonzini@redhat.com, ajones@ventanamicro.com, shuah@kernel.org, peterx@redhat.com, oliver.upton@linux.dev, seanjc@google.com, ricarkol@google.com, zhenyzha@redhat.com, shan.gavin@gmail.com Subject: [PATCH v3 1/6] KVM: selftests: memslot_perf_test: Use data->nslots in prepare_vm() Date: Thu, 20 Oct 2022 15:12:04 +0800 Message-Id: <20221020071209.559062-2-gshan@redhat.com> In-Reply-To: <20221020071209.559062-1-gshan@redhat.com> References: <20221020071209.559062-1-gshan@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In prepare_vm(), 'data->nslots' is assigned with 'max_mem_slots - 1' at the beginning, meaning they are interchangeable. Use 'data->nslots' isntead of 'max_mem_slots - 1'. With this, it becomes easier to move the logic of probing number of slots into upper layer in subsequent patches. No functional change intended. Signed-off-by: Gavin Shan --- tools/testing/selftests/kvm/memslot_perf_test.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c index 44995446d942..231cc8449c2e 100644 --- a/tools/testing/selftests/kvm/memslot_perf_test.c +++ b/tools/testing/selftests/kvm/memslot_perf_test.c @@ -280,14 +280,14 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots, ucall_init(data->vm, NULL); pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n", - max_mem_slots - 1, data->pages_per_slot, rempages); + data->nslots, data->pages_per_slot, rempages); clock_gettime(CLOCK_MONOTONIC, &tstart); - for (slot = 1, guest_addr = MEM_GPA; slot < max_mem_slots; slot++) { + for (slot = 1, guest_addr = MEM_GPA; slot <= data->nslots; slot++) { uint64_t npages; npages = data->pages_per_slot; - if (slot == max_mem_slots - 1) + if (slot == data->nslots) npages += rempages; vm_userspace_mem_region_add(data->vm, VM_MEM_SRC_ANONYMOUS, @@ -297,12 +297,12 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots, } *slot_runtime = timespec_elapsed(tstart); - for (slot = 0, guest_addr = MEM_GPA; slot < max_mem_slots - 1; slot++) { + for (slot = 0, guest_addr = MEM_GPA; slot < data->nslots; slot++) { uint64_t npages; uint64_t gpa; npages = data->pages_per_slot; - if (slot == max_mem_slots - 2) + if (slot == data->nslots - 1) npages += rempages; gpa = vm_phy_pages_alloc(data->vm, npages, guest_addr, -- 2.23.0 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 mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D6F1C4332F for ; Thu, 20 Oct 2022 07:12:59 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C453D4B869; 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Thu, 20 Oct 2022 07:12:49 +0000 (UTC) Received: from gshan.redhat.com (vpn2-54-70.bne.redhat.com [10.64.54.70]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 574EA40C6EC2; Thu, 20 Oct 2022 07:12:44 +0000 (UTC) From: Gavin Shan To: kvmarm@lists.linux.dev Subject: [PATCH v3 1/6] KVM: selftests: memslot_perf_test: Use data->nslots in prepare_vm() Date: Thu, 20 Oct 2022 15:12:04 +0800 Message-Id: <20221020071209.559062-2-gshan@redhat.com> In-Reply-To: <20221020071209.559062-1-gshan@redhat.com> References: <20221020071209.559062-1-gshan@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Cc: mail@maciej.szmigiero.name, kvm@vger.kernel.org, maz@kernel.org, linux-kernel@vger.kernel.org, zhenyzha@redhat.com, shan.gavin@gmail.com, pbonzini@redhat.com, shuah@kernel.org, kvmarm@lists.cs.columbia.edu, ajones@ventanamicro.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu In prepare_vm(), 'data->nslots' is assigned with 'max_mem_slots - 1' at the beginning, meaning they are interchangeable. Use 'data->nslots' isntead of 'max_mem_slots - 1'. With this, it becomes easier to move the logic of probing number of slots into upper layer in subsequent patches. No functional change intended. Signed-off-by: Gavin Shan --- tools/testing/selftests/kvm/memslot_perf_test.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c index 44995446d942..231cc8449c2e 100644 --- a/tools/testing/selftests/kvm/memslot_perf_test.c +++ b/tools/testing/selftests/kvm/memslot_perf_test.c @@ -280,14 +280,14 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots, ucall_init(data->vm, NULL); pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n", - max_mem_slots - 1, data->pages_per_slot, rempages); + data->nslots, data->pages_per_slot, rempages); clock_gettime(CLOCK_MONOTONIC, &tstart); - for (slot = 1, guest_addr = MEM_GPA; slot < max_mem_slots; slot++) { + for (slot = 1, guest_addr = MEM_GPA; slot <= data->nslots; slot++) { uint64_t npages; npages = data->pages_per_slot; - if (slot == max_mem_slots - 1) + if (slot == data->nslots) npages += rempages; vm_userspace_mem_region_add(data->vm, VM_MEM_SRC_ANONYMOUS, @@ -297,12 +297,12 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots, } *slot_runtime = timespec_elapsed(tstart); - for (slot = 0, guest_addr = MEM_GPA; slot < max_mem_slots - 1; slot++) { + for (slot = 0, guest_addr = MEM_GPA; slot < data->nslots; slot++) { uint64_t npages; uint64_t gpa; npages = data->pages_per_slot; - if (slot == max_mem_slots - 2) + if (slot == data->nslots - 1) npages += rempages; gpa = vm_phy_pages_alloc(data->vm, npages, guest_addr, -- 2.23.0 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm