151 lines
4.2 KiB
C++
151 lines
4.2 KiB
C++
/*
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* \brief Framebuffer throughput test
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* \author Norman Feske
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* \author Martin Stein
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* \date 2015-06-05
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/component.h>
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#include <base/heap.h>
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#include <base/attached_dataspace.h>
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#include <blit/blit.h>
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#include <framebuffer_session/connection.h>
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#include <timer_session/connection.h>
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using namespace Genode;
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struct Test
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{
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enum { DURATION_MS = 2000 };
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Env &env;
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int id;
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Timer::Connection timer { env };
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Heap heap { env.ram(), env.rm() };
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Framebuffer::Connection fb { env, Framebuffer::Mode() };
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Attached_dataspace fb_ds { env.rm(), fb.dataspace() };
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Framebuffer::Mode const fb_mode { fb.mode() };
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char *buf[2];
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Test(Env &env, int id, char const *brief) : env(env), id(id)
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{
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log("\nTEST ", id, ": ", brief, "\n");
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for (unsigned i = 0; i < 2; i++) {
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if (!heap.alloc(fb_ds.size(), (void **)&buf[i])) {
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env.parent().exit(-1); }
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}
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/* fill one memory buffer with white pixels */
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memset(buf[1], ~0, fb_ds.size());
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}
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void conclusion(unsigned kib, uint64_t start_ms, uint64_t end_ms) {
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log("throughput: ", kib / (end_ms - start_ms), " MiB/sec"); }
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~Test() { log("\nTEST ", id, " finished\n"); }
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private:
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/*
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* Noncopyable
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*/
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Test(Test const &);
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Test &operator = (Test const &);
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};
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struct Bytewise_ram_test : Test
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{
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static constexpr char const *brief = "byte-wise memcpy from RAM to RAM";
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Bytewise_ram_test(Env &env, int id) : Test(env, id, brief)
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{
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unsigned kib = 0;
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uint64_t const start_ms = timer.elapsed_ms();
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for (; timer.elapsed_ms() - start_ms < DURATION_MS;) {
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memcpy(buf[0], buf[1], fb_ds.size());
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kib += fb_ds.size() / 1024;
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}
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conclusion(kib, start_ms, timer.elapsed_ms());
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}
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};
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struct Bytewise_fb_test : Test
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{
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static constexpr char const *brief = "byte-wise memcpy from RAM to FB";
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Bytewise_fb_test(Env &env, int id) : Test(env, id, brief)
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{
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unsigned kib = 0;
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uint64_t const start_ms = timer.elapsed_ms();
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for (unsigned i = 0; timer.elapsed_ms() - start_ms < DURATION_MS; i++) {
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memcpy(fb_ds.local_addr<char>(), buf[i % 2], fb_ds.size());
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kib += fb_ds.size() / 1024;
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}
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conclusion(kib, start_ms, timer.elapsed_ms());
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}
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};
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struct Blit_test : Test
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{
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static constexpr char const *brief = "copy via blit library from RAM to FB";
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Blit_test(Env &env, int id) : Test(env, id, brief)
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{
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unsigned kib = 0;
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uint64_t const start_ms = timer.elapsed_ms();
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unsigned const w = fb_mode.width() * fb_mode.bytes_per_pixel();
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unsigned const h = fb_mode.height();
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for (unsigned i = 0; timer.elapsed_ms() - start_ms < DURATION_MS; i++) {
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blit(buf[i % 2], w, fb_ds.local_addr<char>(), w, w, h);
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kib += (w * h) / 1024;
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}
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conclusion(kib, start_ms, timer.elapsed_ms());
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}
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};
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struct Unaligned_blit_test : Test
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{
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static constexpr char const *brief = "unaligned copy via blit library from RAM to FB";
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Unaligned_blit_test(Env &env, int id) : Test(env, id, brief)
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{
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unsigned kib = 0;
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uint64_t const start_ms = timer.elapsed_ms();
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unsigned const w = fb_mode.width() * fb_mode.bytes_per_pixel();
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unsigned const h = fb_mode.height();
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for (unsigned i = 0; timer.elapsed_ms() - start_ms < DURATION_MS; i++) {
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blit(buf[i % 2] + 2, w, fb_ds.local_addr<char>() + 2, w, w - 2, h);
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kib += (w * h) / 1024;
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}
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conclusion(kib, start_ms, timer.elapsed_ms());
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}
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};
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struct Main
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{
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Constructible<Bytewise_ram_test> test_1 { };
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Constructible<Bytewise_fb_test> test_2 { };
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Constructible<Blit_test> test_3 { };
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Constructible<Unaligned_blit_test> test_4 { };
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Main(Env &env)
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{
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log("--- Framebuffer benchmark ---");
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test_1.construct(env, 1); test_1.destruct();
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test_2.construct(env, 2); test_2.destruct();
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test_3.construct(env, 3); test_3.destruct();
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test_4.construct(env, 4); test_4.destruct();
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log("--- Framebuffer benchmark finished ---");
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env.parent().exit(0);
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}
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};
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void Component::construct(Env &env) { static Main main(env); }
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