From patchwork Sat Aug 14 21:17:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 12436925 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 425B7C432BE for ; Sat, 14 Aug 2021 21:20:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2AA6760D07 for ; Sat, 14 Aug 2021 21:20:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231184AbhHNVVB (ORCPT ); Sat, 14 Aug 2021 17:21:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234840AbhHNVUM (ORCPT ); Sat, 14 Aug 2021 17:20:12 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9EAD1C0612AD; Sat, 14 Aug 2021 14:19:20 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id n5so93466pjt.4; Sat, 14 Aug 2021 14:19:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=cLY/ZyxeNxNsAiXmyv2EWouUSbE2B2rkGNWBEb0HZBE=; b=hZhlG89Q+6j/mk80mZ3kWMh7Ztex4n9sfRcozdm7vLK3xe5IgEuYIoHO0qN2+Rgxf6 QFSINDEfk2V0xP2T5oF53GTCHDaK0GD0v3uaqDhsBnBQ/B2wtEasdfslWzfdMZtHP21I gYDkKZ5RnriR1+uKZBwh9ynZC6nIIskVmZzFlU33uP8/rDKWE+moiqaY5xDJtfSozDT0 Jq9eCKFVOop3BP03+Y2opA88AMHFjXgDtUPIf5Mk2LgWIRA6Ut2AifJhTNhwMqFhfNUq cQWPpPMIFMm2DSeF0QUAGaJ1wR4DYuQEmALhr/6iPFAVfTwAyp7KF+o1gKh1KHnOhebh Worg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cLY/ZyxeNxNsAiXmyv2EWouUSbE2B2rkGNWBEb0HZBE=; b=EwuXbitQLM0uDrba+HUUGPkKxQFkvHN4V6GO0Aaqz4y3gqEbX5VAir0XmzHtfbyuSj +i2Fx8fOMJ8AS9v73m2rUc/Mnu49bSwmddOzYu6IM9xrXeFeglTxmR3Vjm9VbA/h7fj9 LlDF4C551DEYTxJVA8bZ3vzpZzHEasRPMNy5M1205KNTCcIqAPjpPDcfaLx2plZ+BAoe BbaIzvR5YT/q1aKagZQsx/MSKa4lbbEYBDDyr+FCzQOcr5fP0aXFNxMyEmZiQipV8m9S ZD6Fu+kZz+xw78jZbSv8JFKwbJ7vfChtQ5cb5nbmc3bNjEDXnYyuVgiG7yL1UmrA8VJC WPnQ== X-Gm-Message-State: AOAM530zhVJLnCQ8Z6T+oN3HPy/DAEAgMUyWYsRXDjP8lmxNLDu6p4hM 4QOAiHFZb3Yj3/0JBYn1yIo= X-Google-Smtp-Source: ABdhPJx4LhYM7MAbGn4+F4WnJIr72PWqItuGnJiXGuRm14emqWbH3bRl2gvGcPqsxaP4VRGf/7gpOA== X-Received: by 2002:a63:2442:: with SMTP id k63mr5711700pgk.54.1628975960088; Sat, 14 Aug 2021 14:19:20 -0700 (PDT) Received: from localhost ([12.28.44.171]) by smtp.gmail.com with ESMTPSA id pc11sm5461926pjb.17.2021.08.14.14.19.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Aug 2021 14:19:19 -0700 (PDT) From: Yury Norov To: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mmc@vger.kernel.org, linux-perf-users@vger.kernel.org, kvm@vger.kernel.org, "James E.J. Bottomley" , Alexander Lobakin , Alexander Shishkin , Alexey Klimov , Andrea Merello , Andy Shevchenko , Arnaldo Carvalho de Melo , Arnd Bergmann , Ben Gardon , Benjamin Herrenschmidt , Brian Cain , Catalin Marinas , Christoph Lameter , Daniel Bristot de Oliveira , David Hildenbrand , Dennis Zhou , Geert Uytterhoeven , Heiko Carstens , Ian Rogers , Ingo Molnar , Jaegeuk Kim , Jakub Kicinski , Jiri Olsa , Joe Perches , Jonas Bonn , Leo Yan , Mark Rutland , Namhyung Kim , Palmer Dabbelt , Paolo Bonzini , Peter Xu , Peter Zijlstra , Petr Mladek , Rasmus Villemoes , Rich Felker , Samuel Mendoza-Jonas , Sean Christopherson , Sergey Senozhatsky , Shuah Khan , Stefan Kristiansson , Steven Rostedt , Tejun Heo , Thomas Bogendoerfer , Ulf Hansson , Will Deacon , Wolfram Sang , Yoshinori Sato , Yury Norov Subject: [PATCH 16/17] lib: bitmap: add performance test for bitmap_print_to_pagebuf Date: Sat, 14 Aug 2021 14:17:12 -0700 Message-Id: <20210814211713.180533-17-yury.norov@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210814211713.180533-1-yury.norov@gmail.com> References: <20210814211713.180533-1-yury.norov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Functional tests for bitmap_print_to_pagebuf() are provided in lib/test_printf.c. This patch adds performance test for a case of fully set bitmap. Signed-off-by: Yury Norov Tested-by: Wolfram Sang --- lib/test_bitmap.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 4ea73f5aed41..452d525007da 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -430,6 +430,42 @@ static void __init test_bitmap_parselist(void) } } +static void __init test_bitmap_printlist(void) +{ + unsigned long *bmap = kmalloc(PAGE_SIZE, GFP_KERNEL); + char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + char expected[256]; + int ret, slen; + ktime_t time; + + if (!buf || !bmap) + goto out; + + memset(bmap, -1, PAGE_SIZE); + slen = snprintf(expected, 256, "0-%ld", PAGE_SIZE * 8 - 1); + if (slen < 0) + goto out; + + time = ktime_get(); + ret = bitmap_print_to_pagebuf(true, buf, bmap, PAGE_SIZE * 8); + time = ktime_get() - time; + + if (ret != slen + 1) { + pr_err("bitmap_print_to_pagebuf: result is %d, expected %d\n", ret, slen); + goto out; + } + + if (strncmp(buf, expected, slen)) { + pr_err("bitmap_print_to_pagebuf: result is %s, expected %s\n", buf, expected); + goto out; + } + + pr_err("bitmap_print_to_pagebuf: input is '%s', Time: %llu\n", buf, time); +out: + kfree(buf); + kfree(bmap); +} + static const unsigned long parse_test[] __initconst = { BITMAP_FROM_U64(0), BITMAP_FROM_U64(1), @@ -669,6 +705,7 @@ static void __init selftest(void) test_bitmap_arr32(); test_bitmap_parse(); test_bitmap_parselist(); + test_bitmap_printlist(); test_mem_optimisations(); test_for_each_set_clump8(); test_bitmap_cut();