From patchwork Tue Jan 12 21:42:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Gardon X-Patchwork-Id: 12014883 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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 AC75BC43332 for ; Tue, 12 Jan 2021 21:46:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C56C23123 for ; Tue, 12 Jan 2021 21:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732892AbhALVoC (ORCPT ); Tue, 12 Jan 2021 16:44:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733146AbhALVn6 (ORCPT ); Tue, 12 Jan 2021 16:43:58 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92121C0617BE for ; Tue, 12 Jan 2021 13:43:03 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id x64so67307yba.23 for ; Tue, 12 Jan 2021 13:43:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=QesXjU8b1dHyvLy/TubleiHBc9h4FBDuAQnl/uZ5MtQ=; b=kbYf2CU35PRWQho9pYs5dH+xvLWBEOhB+l+RXMA6rL2UwKnFHlFdPahz6Et8cbS4EO AApERsLHBYn9nyVPLvgrdkoJjNZlfWR/PF9MBgTvs6eH4PYfZM89O/LR8R8stzy4YyHu /AwOKH3pkP3F6epxE0ZzhzkQpgq+UnOHiIJqYgFz7VZvjFCnxiV02ndnxyRkgJdQQTVx ngPiLN97VsnKkQUa+0tXlawzxFHfFTKnpFlubO17fDagV1Mj1Nl8EJeAkeF7ARrKmnmZ IEIwVzjZhSTTJLeCW/lxoWf83OFoR57KhuZrYCUUr5lU945ysFpiUJwNd2Hho1zApzJ9 dcJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=QesXjU8b1dHyvLy/TubleiHBc9h4FBDuAQnl/uZ5MtQ=; b=tgJUd/GUKYN8qhIPYoYoRClJHA08/Fi+fx0swdEhHFf/q+PQYI1qAqoOXkAirB02k7 Yczup4YPbNoSz7y1zeOUePT1QvtfZQY/VKUN0WYzvZpXtl40vFuGGyYU16RLpGoaK2ry xTfO3rec4cOi2L4olfCyb8ByMeB5IXzXV1uuR/L+nODOzvj/CSZxukvl9QUhTUjY7IL8 gWaICM7DaZlLgBf8ZzcwKNCtzVcpPVj6EiJjKUt3KMh8P/bOHS7GK/RUkt21z86Am8Kt nluYnAnfzM/9XcV8bpJTik0ek3+UQBA4bygWt7ehZStkiEw/BPPzGMXanNe3hPl2v+KQ mgiA== X-Gm-Message-State: AOAM530knhoAo27RcWqjp3nXRW5EyWBFnDizAq/eTwOJzGSD+9h7LSwk eZL/e5LFvlRFxqRkF+A9ezqdbOOJHYdM X-Google-Smtp-Source: ABdhPJxM/RMdfYC4s6KuwnYuG2v9RBQprCahhsWA2zJ3lBz3mnKteeAAsA6CHiFsY/USr4csAyrs9HlEMIg8 Sender: "bgardon via sendgmr" X-Received: from bgardon.sea.corp.google.com ([2620:15c:100:202:f693:9fff:fef4:a293]) (user=bgardon job=sendgmr) by 2002:a25:1241:: with SMTP id 62mr2347892ybs.366.1610487782652; Tue, 12 Jan 2021 13:43:02 -0800 (PST) Date: Tue, 12 Jan 2021 13:42:50 -0800 In-Reply-To: <20210112214253.463999-1-bgardon@google.com> Message-Id: <20210112214253.463999-4-bgardon@google.com> Mime-Version: 1.0 References: <20210112214253.463999-1-bgardon@google.com> X-Mailer: git-send-email 2.30.0.284.gd98b1dd5eaa7-goog Subject: [PATCH 3/6] KVM: selftests: Convert iterations to int in dirty_log_perf_test From: Ben Gardon To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Paolo Bonzini , Peter Xu , Andrew Jones , Peter Shier , Sean Christopherson , Thomas Huth , Jacob Xu , Makarand Sonare , Ben Gardon Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org In order to add an iteration -1 to indicate that the memory population phase has not yet completed, convert the interations counters to ints. No functional change intended. Reviewed-by: Jacob Xu Signed-off-by: Ben Gardon --- .../selftests/kvm/dirty_log_perf_test.c | 26 +++++++++---------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c index 15a9c45bdb5f..3875f22d7283 100644 --- a/tools/testing/selftests/kvm/dirty_log_perf_test.c +++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c @@ -28,8 +28,8 @@ static uint64_t guest_percpu_mem_size = DEFAULT_PER_VCPU_MEM_SIZE; /* Host variables */ static u64 dirty_log_manual_caps; static bool host_quit; -static uint64_t iteration; -static uint64_t vcpu_last_completed_iteration[KVM_MAX_VCPUS]; +static int iteration; +static int vcpu_last_completed_iteration[KVM_MAX_VCPUS]; static void *vcpu_worker(void *data) { @@ -48,7 +48,7 @@ static void *vcpu_worker(void *data) run = vcpu_state(vm, vcpu_id); while (!READ_ONCE(host_quit)) { - uint64_t current_iteration = READ_ONCE(iteration); + int current_iteration = READ_ONCE(iteration); clock_gettime(CLOCK_MONOTONIC, &start); ret = _vcpu_run(vm, vcpu_id); @@ -61,17 +61,17 @@ static void *vcpu_worker(void *data) pr_debug("Got sync event from vCPU %d\n", vcpu_id); vcpu_last_completed_iteration[vcpu_id] = current_iteration; - pr_debug("vCPU %d updated last completed iteration to %lu\n", + pr_debug("vCPU %d updated last completed iteration to %d\n", vcpu_id, vcpu_last_completed_iteration[vcpu_id]); if (current_iteration) { pages_count += vcpu_args->pages; total = timespec_add(total, ts_diff); - pr_debug("vCPU %d iteration %lu dirty memory time: %ld.%.9lds\n", + pr_debug("vCPU %d iteration %d dirty memory time: %ld.%.9lds\n", vcpu_id, current_iteration, ts_diff.tv_sec, ts_diff.tv_nsec); } else { - pr_debug("vCPU %d iteration %lu populate memory time: %ld.%.9lds\n", + pr_debug("vCPU %d iteration %d populate memory time: %ld.%.9lds\n", vcpu_id, current_iteration, ts_diff.tv_sec, ts_diff.tv_nsec); } @@ -81,7 +81,7 @@ static void *vcpu_worker(void *data) } avg = timespec_div(total, vcpu_last_completed_iteration[vcpu_id]); - pr_debug("\nvCPU %d dirtied 0x%lx pages over %lu iterations in %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n", + pr_debug("\nvCPU %d dirtied 0x%lx pages over %d iterations in %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n", vcpu_id, pages_count, vcpu_last_completed_iteration[vcpu_id], total.tv_sec, total.tv_nsec, avg.tv_sec, avg.tv_nsec); @@ -144,7 +144,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) } /* Allow the vCPU to populate memory */ - pr_debug("Starting iteration %lu - Populating\n", iteration); + pr_debug("Starting iteration %d - Populating\n", iteration); while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) != iteration) ; @@ -168,7 +168,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) clock_gettime(CLOCK_MONOTONIC, &start); iteration++; - pr_debug("Starting iteration %lu\n", iteration); + pr_debug("Starting iteration %d\n", iteration); for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) { while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) != iteration) @@ -177,7 +177,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) ts_diff = timespec_elapsed(start); vcpu_dirty_total = timespec_add(vcpu_dirty_total, ts_diff); - pr_info("Iteration %lu dirty memory time: %ld.%.9lds\n", + pr_info("Iteration %d dirty memory time: %ld.%.9lds\n", iteration, ts_diff.tv_sec, ts_diff.tv_nsec); clock_gettime(CLOCK_MONOTONIC, &start); @@ -186,7 +186,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) ts_diff = timespec_elapsed(start); get_dirty_log_total = timespec_add(get_dirty_log_total, ts_diff); - pr_info("Iteration %lu get dirty log time: %ld.%.9lds\n", + pr_info("Iteration %d get dirty log time: %ld.%.9lds\n", iteration, ts_diff.tv_sec, ts_diff.tv_nsec); if (dirty_log_manual_caps) { @@ -197,7 +197,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) ts_diff = timespec_elapsed(start); clear_dirty_log_total = timespec_add(clear_dirty_log_total, ts_diff); - pr_info("Iteration %lu clear dirty log time: %ld.%.9lds\n", + pr_info("Iteration %d clear dirty log time: %ld.%.9lds\n", iteration, ts_diff.tv_sec, ts_diff.tv_nsec); } } @@ -273,7 +273,7 @@ int main(int argc, char *argv[]) while ((opt = getopt(argc, argv, "hi:p:m:b:f:v:")) != -1) { switch (opt) { case 'i': - p.iterations = strtol(optarg, NULL, 10); + p.iterations = atoi(optarg); break; case 'p': p.phys_offset = strtoull(optarg, NULL, 0);