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tests: Add simple allocating benchmark with both system and slice allocator
This commit is contained in:
Marco Trevisan (Treviño)
241
tests/allocators-tests.c
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241
tests/allocators-tests.c
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/*
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* Copyright (C) 2022 Canonical Ltd.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Marco Trevisan <marco.trevisan@canonical.com>
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*/
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#include <glib.h>
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/* These are to please CI, should be adjusted smartly */
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#define SIMPLE_TYPE_ITERATIONS 100000000
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#if defined(G_OS_UNIX) && !__APPLE__
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#define POINTERS_ARRAY_SIZE 1000000
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#elif defined(__APPLE__)
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#define POINTERS_ARRAY_SIZE 100000
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#else
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#define POINTERS_ARRAY_SIZE 10000
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#endif
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#define MAX_ALLOCATED_SIZE (POINTERS_ARRAY_SIZE * 512)
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#ifdef G_USE_SYSTEM_ALLOCATOR
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#define instance_alloc(s) g_malloc ((s))
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#define instance_alloc0(s) g_malloc0 ((s))
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#define instance_free(s, p) g_free ((p))
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#else
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#define instance_alloc(s) g_slice_alloc ((s))
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#define instance_alloc0(s) g_slice_alloc0 ((s))
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#define instance_free(s, p) g_slice_free1 ((s), (p))
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#endif
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#define allocate_and_free_many(type, type_size, allocator, N) \
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{ \
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guint i; \
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\
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for (i = 0; i < N; i++) \
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{ \
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gpointer ptr = allocator (type_size); \
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instance_free (type_size, ptr); \
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} \
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}
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#define test_alloc_and_free(type, type_size, allocator, N) \
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{ \
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gdouble time_elapsed; \
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\
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g_test_timer_start (); \
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\
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allocate_and_free_many (type, type_size, allocator, N); \
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\
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time_elapsed = g_test_timer_elapsed (); \
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g_test_minimized_result (time_elapsed, \
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"Allocated and free'd %u instances of %s " \
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"(size: %" G_GSIZE_FORMAT " using %s in %6.5f seconds", \
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N, #type, (gsize) type_size, #allocator, time_elapsed); \
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}
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#define test_alloc_many_and_free(type, type_size, allocator, N) \
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{ \
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guint i; \
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gdouble time_elapsed; \
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gpointer *ptrs[N] = { 0 }; \
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gdouble total_time = 0; \
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\
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g_test_timer_start (); \
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\
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for (i = 0; i < N; i++) \
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ptrs[i] = allocator (type_size); \
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\
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time_elapsed = g_test_timer_elapsed (); \
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total_time += time_elapsed; \
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\
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g_test_minimized_result (time_elapsed, \
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"Allocated %u instances of %s (size: %" G_GSIZE_FORMAT \
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") using %s in %6.5f seconds", \
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N, #type, (gsize) type_size, #allocator, time_elapsed); \
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\
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g_test_timer_start (); \
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\
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for (i = 0; i < N; i++) \
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instance_free (type_size, ptrs[i]); \
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\
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time_elapsed = g_test_timer_elapsed (); \
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total_time += time_elapsed; \
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\
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g_test_minimized_result (time_elapsed, \
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"Free'd %u instances of %s in %6.5f seconds", \
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N, #type, time_elapsed); \
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g_test_minimized_result (total_time, \
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"Allocated and Free'd %u instances of %s using %s " \
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"in %6.5f seconds", \
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N, #type, #allocator, total_time); \
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}
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#define test_allocation_simple_type(type) \
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static void \
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test_allocation_##type (void) \
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{ \
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test_alloc_and_free (type, sizeof (type), instance_alloc, SIMPLE_TYPE_ITERATIONS); \
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test_alloc_and_free (type, sizeof (type), instance_alloc0, SIMPLE_TYPE_ITERATIONS); \
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\
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test_alloc_many_and_free (type, sizeof (type), instance_alloc, POINTERS_ARRAY_SIZE); \
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test_alloc_many_and_free (type, sizeof (type), instance_alloc0, POINTERS_ARRAY_SIZE); \
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}
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#define test_allocation_sized(size) \
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static void \
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test_allocation_sized_##size (void) \
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{ \
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test_alloc_and_free ("struct" #size, size, instance_alloc, SIMPLE_TYPE_ITERATIONS); \
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test_alloc_and_free ("struct" #size, size, instance_alloc0, SIMPLE_TYPE_ITERATIONS); \
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\
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test_alloc_many_and_free ("struct" #size, size, instance_alloc, \
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MIN (POINTERS_ARRAY_SIZE, MAX_ALLOCATED_SIZE / size)); \
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test_alloc_many_and_free ("struct" #size, size, instance_alloc0, \
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MIN (POINTERS_ARRAY_SIZE, MAX_ALLOCATED_SIZE / size)); \
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}
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#define test_allocate_and_free_many_mixed(max_steps, allocator, N) \
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{ \
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guint i; \
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gdouble time_elapsed; \
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GArray *steps_size = g_array_sized_new (FALSE, FALSE, sizeof (gsize), max_steps); \
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\
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for (i = 0; i < max_steps; i++) \
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{ \
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gsize size = 1 << (i + 1); \
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if (g_test_verbose ()) \
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g_test_message ("Step allocation size %" G_GSIZE_FORMAT, size); \
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g_array_insert_val (steps_size, i, size); \
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} \
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\
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g_test_timer_start (); \
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\
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for (i = 0; i < N; i++) \
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{ \
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gsize element_size = g_array_index (steps_size, gsize, (i % max_steps)); \
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gpointer ptr = allocator (element_size); \
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instance_free (element_size, ptr); \
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} \
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\
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time_elapsed = g_test_timer_elapsed (); \
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g_test_minimized_result (time_elapsed, \
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"Allocated and free'd %u instances of mixed types " \
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"(step: %s) using %s in %6.5f seconds", \
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N, #max_steps, #allocator, time_elapsed); \
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}
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#define test_allocation_mixed_sizes(max_steps) \
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static void \
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test_allocation_mixed_step_##max_steps (void) \
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{ \
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gsize step_size = 0; \
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gint i; \
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\
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for (i = 0; i < max_steps; i++) \
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step_size += 1 << (i + 1); \
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(void) step_size; \
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\
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test_allocate_and_free_many_mixed (max_steps, instance_alloc, \
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SIMPLE_TYPE_ITERATIONS); \
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test_allocate_and_free_many_mixed (max_steps, instance_alloc0, \
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SIMPLE_TYPE_ITERATIONS); \
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}
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test_allocation_simple_type (gchar);
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test_allocation_simple_type (gshort);
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test_allocation_simple_type (glong);
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test_allocation_simple_type (gint);
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test_allocation_simple_type (gboolean);
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test_allocation_simple_type (guchar);
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test_allocation_simple_type (gushort);
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test_allocation_simple_type (gulong);
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test_allocation_simple_type (guint);
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test_allocation_simple_type (gfloat);
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test_allocation_simple_type (gdouble);
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test_allocation_simple_type (gpointer);
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test_allocation_sized (32);
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test_allocation_sized (64);
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test_allocation_sized (128);
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test_allocation_sized (256);
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test_allocation_sized (512);
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test_allocation_sized (1024);
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test_allocation_sized (2048);
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test_allocation_sized (4096);
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test_allocation_mixed_sizes (8);
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test_allocation_mixed_sizes (12);
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#ifdef G_USE_SYSTEM_ALLOCATOR
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#define TEST_BASENAME "/allocation/system"
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#else
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#define TEST_BASENAME "/allocation/gslice"
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#endif
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int
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main (int argc, char *argv[])
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{
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g_test_init (&argc, &argv, NULL);
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g_test_add_func (TEST_BASENAME "/simple-type/gchar", test_allocation_gchar);
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g_test_add_func (TEST_BASENAME "/simple-type/gshort", test_allocation_gshort);
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g_test_add_func (TEST_BASENAME "/simple-type/glong", test_allocation_glong);
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g_test_add_func (TEST_BASENAME "/simple-type/gint", test_allocation_gint);
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g_test_add_func (TEST_BASENAME "/simple-type/gboolean", test_allocation_gboolean);
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g_test_add_func (TEST_BASENAME "/simple-type/guchar", test_allocation_guchar);
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g_test_add_func (TEST_BASENAME "/simple-type/gushort", test_allocation_gushort);
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g_test_add_func (TEST_BASENAME "/simple-type/gulong", test_allocation_gulong);
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g_test_add_func (TEST_BASENAME "/simple-type/guint", test_allocation_guint);
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g_test_add_func (TEST_BASENAME "/simple-type/gfloat", test_allocation_gfloat);
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g_test_add_func (TEST_BASENAME "/simple-type/gdouble", test_allocation_gdouble);
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g_test_add_func (TEST_BASENAME "/simple-type/gpointer", test_allocation_gpointer);
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g_test_add_func (TEST_BASENAME "/sized/32", test_allocation_sized_32);
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g_test_add_func (TEST_BASENAME "/sized/64", test_allocation_sized_64);
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g_test_add_func (TEST_BASENAME "/sized/128", test_allocation_sized_128);
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g_test_add_func (TEST_BASENAME "/sized/256", test_allocation_sized_256);
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g_test_add_func (TEST_BASENAME "/sized/512", test_allocation_sized_512);
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g_test_add_func (TEST_BASENAME "/sized/1024", test_allocation_sized_1024);
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g_test_add_func (TEST_BASENAME "/sized/2048", test_allocation_sized_2048);
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g_test_add_func (TEST_BASENAME "/sized/4096", test_allocation_sized_4096);
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g_test_add_func (TEST_BASENAME "/mixed/8", test_allocation_mixed_step_8);
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g_test_add_func (TEST_BASENAME "/mixed/12", test_allocation_mixed_step_12);
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return g_test_run ();
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}
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