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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B2B39CA1005 for ; Mon, 1 Sep 2025 20:20:16 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4cG0bq1Hr6z30Bd; Tue, 2 Sep 2025 06:20:07 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1756758007; cv=none; b=f6RPvcqtv7Bkh7YacXoS0ahyHeNtVodzjrxuli1eBPYQnUzyFomWqHh1mi/T7FCQFdxDqeKJYnsTTysMFc2g6e/B6hiQar0FKSUPacbgyotbf0t07/rsxNLC0vInJoZteOh0q9m/pXMpvITGmMOzltSkjF59koZd/lPX6nT8uSQXIhqp+A0lSM8HZunMbBIKU5fcVbE7OGHN3xJ6ly/XvnaA9FVhP63yBU6DiDClg1dBPFk0T5fZTqTjfBuFtwyrzN3n0LKstbZrmX5VJi71SUtssLOgEB/ksnB3XNVpzq37yTlOywiDC0Zze8N/BhAZtHsLAPMjTMcM8LtZSdmDmA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1756758007; c=relaxed/relaxed; bh=zawHBExVrVkRr6zchrF2uLNtWOiWbz0AAntBfqVKmTU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EnAZcdibXRkt7EBMlWprPIfkl5OMZJ5+JigDZWRTNDjOmuugHUy+9HpTPfPgC6xqdyKSEvhRayTwskEhFIGvFpBaGH3XzNWsUhczIXaaH/1M9Tm7UGz7wnfltNwnxqIhRAJwi3xnUWcw3O63ZLVMkoSKU072KiIQJl0TMqHP1G1edevYUlXOL4YhBs1HfdbUJnqLFq7PgEXgb7qtK17auAVobLoEeYU/px8vyNbJDiZLbiU2HwDXeRxxiVXaS4Q2WpWdfiJ8d51ivVWpyuj0MK831rqZ0TJgtgQh00V1uEoAFF28AT2vdZSE10+fd39OHqPKG8b+36p1MtXhglyCug== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=cIv556mj; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=ebiggers@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=cIv556mj; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=ebiggers@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4cG0bp1y1Dz3055 for ; Tue, 2 Sep 2025 06:20:05 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id F40F8451B5; Mon, 1 Sep 2025 20:20:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92E76C4CEF7; Mon, 1 Sep 2025 20:20:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756758003; bh=JT5BiLSYDda9F7JFlPUyma7+VlywOSy3ji25SAsdSjc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cIv556mj78srUYKhhiIsf5bRS5w3KmxqdTYYJ3t9pCTlMTQrWVdEk8o4UiDSI4da8 TwsnQcPkOLEGWnNN1i2BvzYxwKRZ2OL0Xta/6Ry1WG3dir2IyTPt2hQxAUf4ntRghe Qe3qXPdw4iRHmCGfnZEdjb7cuzGd6mJy/wkpeWJB8sF6j3htHmWrVaTt4a9x6uB2BJ 8z++/1e0hOWXaqiyejBAk+ZC8jwyKDjZw3SRztPnBveuthxLs3GaAFdqU/wbcFpAj1 pOllmIj46N5FxKdsXbpS96eu3Mb7G6CjI/62ePYuW+7e0qpRcA4nQMVPFDzXmezuRQ CxtulhW2ELojA== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel , "Jason A . Donenfeld" , Zhiqi Song , Longfang Liu , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, Eric Biggers Subject: [PATCH 3/6] lib/crypto: tests: Add Curve25519 benchmark Date: Mon, 1 Sep 2025 13:18:12 -0700 Message-ID: <20250901201815.594177-4-ebiggers@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250901201815.594177-1-ebiggers@kernel.org> References: <20250901201815.594177-1-ebiggers@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a benchmark to curve25519_kunit. This brings it in line with the other crypto KUnit tests and provides an easy way to measure performance. Signed-off-by: Eric Biggers --- lib/crypto/tests/curve25519_kunit.c | 31 +++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/lib/crypto/tests/curve25519_kunit.c b/lib/crypto/tests/curve25519_kunit.c index 585f7ad3ed5f7..2e1d781563648 100644 --- a/lib/crypto/tests/curve25519_kunit.c +++ b/lib/crypto/tests/curve25519_kunit.c @@ -3,10 +3,11 @@ * Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. */ #include #include +#include struct curve25519_test_vector { u8 private[CURVE25519_KEY_SIZE]; u8 public[CURVE25519_KEY_SIZE]; u8 result[CURVE25519_KEY_SIZE]; @@ -1317,13 +1318,43 @@ static void test_curve25519_basepoint(struct kunit *test) KUNIT_EXPECT_MEMEQ_MSG(test, out, out2, CURVE25519_KEY_SIZE, "in=%*phN", CURVE25519_KEY_SIZE, in); } } +static void benchmark_curve25519(struct kunit *test) +{ + const u8 *private = curve25519_test_vectors[0].private; + const u8 *public = curve25519_test_vectors[0].public; + u8 out[CURVE25519_KEY_SIZE]; + const size_t warmup_niter = 5000; + const size_t benchmark_niter = 1024; + bool ok = true; + u64 t; + + if (!IS_ENABLED(CONFIG_CRYPTO_LIB_BENCHMARK)) + kunit_skip(test, "not enabled"); + + /* Warm-up */ + for (size_t i = 0; i < warmup_niter; i++) + ok &= curve25519(out, private, public); + + /* Benchmark */ + preempt_disable(); + t = ktime_get_ns(); + for (size_t i = 0; i < benchmark_niter; i++) + ok &= curve25519(out, private, public); + t = ktime_get_ns() - t; + preempt_enable(); + KUNIT_EXPECT_TRUE(test, ok); + kunit_info(test, "%llu ops/s", + div64_u64((u64)benchmark_niter * 1000000000, t ?: 1)); +} + static struct kunit_case curve25519_test_cases[] = { KUNIT_CASE(test_curve25519), KUNIT_CASE(test_curve25519_basepoint), + KUNIT_CASE(benchmark_curve25519), {}, }; static struct kunit_suite curve25519_test_suite = { .name = "curve25519", -- 2.50.1