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[174.21.72.5]) by smtp.gmail.com with ESMTPSA id d12-20020a63360c000000b005d880b41598sm20861523pga.94.2024.04.30.12.43.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 12:43:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1714506184; x=1715110984; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=P8aiuTj5/6yjo0wKZf1j2mdDbeTtUm906YMvC+PIZPk=; b=KWkETIoyPXdYR+JOUg8Dxlxk7DS5MqnBbiKGSAp9Ov0cyrPPYPsVdFiHQctGXwmZeW Y6mRaRfbUVQ+Ka5lUWjWaFrqM0DEWq8jzj9yU3CJhUlxpbzOuhJM+HN5uTdKaokwf2EG VIO+GEgDWPVWYv9Ylpc0255cLaXdvKB8STVLjZqMuACCNUxgWuKCtjX+2fQCxdWnGkMB QcMns2Ytk/AUouO49WHxPRS4aoAMNUsE7okWFf69Lqr/RDWferasLaKYRbcHNUQi0wXR iyMN7k8Q+lUNyrbgLZKS0pzFNaXHRNIrvPbettxoTJ0Q5BZMZNvA5W6W6FHj3d6RYktR H4Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714506184; x=1715110984; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=P8aiuTj5/6yjo0wKZf1j2mdDbeTtUm906YMvC+PIZPk=; b=HW2QQx9l1x10Totkk6iNDPdCwhh1BVjLwMrI4r71oTc/SJpU4QWrr62aUvR8RqKBCU J0dyupfFnxAVFU6/hLXYv4XQ8DK4ZWR/Jwhx0vjzJxFygi9FNyOvuBUYUQEeuQtwjDXG a6whd5xYOF4c1IPxZZlsOohKEo2F28Jy4GFX4odVum3JdHhVW0G6wVE4hXHB9gMlxS2f XJX4OpGW3mseU4FzIcpsbhhLeFXAe7QEy8G6DLK++XvWgrAXAlbRlKjqNW+VjZ0sWPLI 6YyE8mRGXJqdmXe/yR86JlDUs/1T4n7A3FboAaKByDRY4WgiXlRUJ+hG2fnZwhbLReX/ Pt/g== X-Gm-Message-State: AOJu0YxsPdrIyhdFxxm75JnDUXqUZlzBxJ2Geg0RlVeiCLQjAfsHgEs1 FKuIoXZE7XO/iItsenHs0JK6XqnfNouxs8DqMF17Z44dUrdvhbeUuTIswLo551c0sywBVXCRJDn F X-Google-Smtp-Source: AGHT+IHfBl+oazG3UWvzGGlWkOGI/C2QhkRfYf3qCUph+JcVQY7TlL1sDBzIfoh3Dh2SjT+q1ioDUw== X-Received: by 2002:a05:6358:988b:b0:17f:729a:8562 with SMTP id q11-20020a056358988b00b0017f729a8562mr391176rwa.3.1714506184111; Tue, 30 Apr 2024 12:43:04 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: philmd@linaro.org Subject: [PATCH v7 10/10] tests/bench: Add bufferiszero-bench Date: Tue, 30 Apr 2024 12:42:53 -0700 Message-Id: <20240430194253.904768-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240430194253.904768-1-richard.henderson@linaro.org> References: <20240430194253.904768-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::c32; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc32.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1714506253412100010 Benchmark each acceleration function vs an aligned buffer of zeros. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- tests/bench/bufferiszero-bench.c | 47 ++++++++++++++++++++++++++++++++ tests/bench/meson.build | 1 + 2 files changed, 48 insertions(+) create mode 100644 tests/bench/bufferiszero-bench.c diff --git a/tests/bench/bufferiszero-bench.c b/tests/bench/bufferiszero-be= nch.c new file mode 100644 index 0000000000..222695c1fa --- /dev/null +++ b/tests/bench/bufferiszero-bench.c @@ -0,0 +1,47 @@ +/* + * QEMU buffer_is_zero speed benchmark + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ +#include "qemu/osdep.h" +#include "qemu/cutils.h" +#include "qemu/units.h" + +static void test(const void *opaque) +{ + size_t max =3D 64 * KiB; + void *buf =3D g_malloc0(max); + int accel_index =3D 0; + + do { + if (accel_index !=3D 0) { + g_test_message("%s", ""); /* gnu_printf Werror for simple "" = */ + } + for (size_t len =3D 1 * KiB; len <=3D max; len *=3D 4) { + double total =3D 0.0; + + g_test_timer_start(); + do { + buffer_is_zero_ge256(buf, len); + total +=3D len; + } while (g_test_timer_elapsed() < 0.5); + + total /=3D MiB; + g_test_message("buffer_is_zero #%d: %2zuKB %8.0f MB/sec", + accel_index, len / (size_t)KiB, + total / g_test_timer_last()); + } + accel_index++; + } while (test_buffer_is_zero_next_accel()); + + g_free(buf); +} + +int main(int argc, char **argv) +{ + g_test_init(&argc, &argv, NULL); + g_test_add_data_func("/cutils/bufferiszero/speed", NULL, test); + return g_test_run(); +} diff --git a/tests/bench/meson.build b/tests/bench/meson.build index 7e76338a52..4cd7a2f6b5 100644 --- a/tests/bench/meson.build +++ b/tests/bench/meson.build @@ -21,6 +21,7 @@ benchs =3D {} =20 if have_block benchs +=3D { + 'bufferiszero-bench': [], 'benchmark-crypto-hash': [crypto], 'benchmark-crypto-hmac': [crypto], 'benchmark-crypto-cipher': [crypto], --=20 2.34.1