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# Copyright (c) 2017 Intel Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
---
- include: check_openstack.yml
- include: install_yardstick.yml

- include: clean_images.yml
- include: load_images.yml

- include: run_yardstick_tests.yml
rror */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ }
#include <linux/module.h>
#include <linux/rbtree_augmented.h>
#include <linux/random.h>
#include <asm/timex.h>

#define NODES       100
#define PERF_LOOPS  100000
#define CHECK_LOOPS 100

struct test_node {
	u32 key;
	struct rb_node rb;

	/* following fields used for testing augmented rbtree functionality */
	u32 val;
	u32 augmented;
};

static struct rb_root root = RB_ROOT;
static struct test_node nodes[NODES];

static struct rnd_state rnd;

static void insert(struct test_node *node, struct rb_root *root)
{
	struct rb_node **new = &root->rb_node, *parent = NULL;
	u32 key = node->key;

	while (*new) {
		parent = *new;
		if (key < rb_entry(parent, struct test_node, rb)->key)
			new = &parent->rb_left;
		else
			new = &parent->rb_right;
	}

	rb_link_node(&node->rb, parent, new);
	rb_insert_color(&node->rb, root);
}

static inline void erase(struct test_node *node, struct rb_root *root)
{
	rb_erase(&node->rb, root);
}

static inline u32 augment_recompute(struct test_node *node)
{
	u32 max = node->val, child_augmented;
	if (node->rb.rb_left) {
		child_augmented = rb_entry(node->rb.rb_left, struct test_node,
					   rb)->augmented;
		if (max < child_augmented)
			max = child_augmented;
	}
	if (node->rb.rb_right) {
		child_augmented = rb_entry(node->rb.rb_right, struct test_node,
					   rb)->augmented;
		if (max < child_augmented)
			max = child_augmented;
	}
	return max;
}

RB_DECLARE_CALLBACKS(static, augment_callbacks, struct test_node, rb,
		     u32, augmented, augment_recompute)

static void insert_augmented(struct test_node *node, struct rb_root *root)
{
	struct rb_node **new = &root->rb_node, *rb_parent = NULL;
	u32 key = node->key;
	u32 val = node->val;
	struct test_node *parent;

	while (*new) {
		rb_parent = *new;
		parent = rb_entry(rb_parent, struct test_node, rb);
		if (parent->augmented < val)
			parent->augmented = val;
		if (key < parent->key)
			new = &parent->rb.rb_left;
		else
			new = &parent->rb.rb_right;
	}

	node->augmented = val;
	rb_link_node(&node->rb, rb_parent, new);
	rb_insert_augmented(&node->rb, root, &augment_callbacks);
}

static void erase_augmented(struct test_node *node, struct rb_root *root)
{
	rb_erase_augmented(&node->rb, root, &augment_callbacks);
}

static void init(void)
{
	int i;
	for (i = 0; i < NODES; i++) {
		nodes[i].key = prandom_u32_state(&rnd);
		nodes[i].val = prandom_u32_state(&rnd);
	}
}

static bool is_red(struct rb_node *rb)
{
	return !(rb->__rb_parent_color & 1);
}

static int black_path_count(struct rb_node *rb)
{
	int count;
	for (count = 0; rb; rb = rb_parent(rb))
		count += !is_red(rb);
	return count;
}

static void check_postorder_foreach(int nr_nodes)
{
	struct test_node *cur, *n;
	int count = 0;
	rbtree_postorder_for_each_entry_safe(cur, n, &root, rb)
		count++;

	WARN_ON_ONCE(count != nr_nodes);
}

static void check_postorder(int nr_nodes)
{
	struct rb_node *rb;
	int count = 0;
	for (rb = rb_first_postorder(&root); rb; rb = rb_next_postorder(rb))
		count++;

	WARN_ON_ONCE(count != nr_nodes);
}

static void check(int nr_nodes)
{
	struct rb_node *rb;
	int count = 0, blacks = 0;
	u32 prev_key = 0;

	for (rb = rb_first(&root); rb; rb = rb_next(rb)) {
		struct test_node *node = rb_entry(rb, struct test_node, rb);
		WARN_ON_ONCE(node->key < prev_key);
		WARN_ON_ONCE(is_red(rb) &&
			     (!rb_parent(rb) || is_red(rb_parent(rb))));
		if (!count)
			blacks = black_path_count(rb);
		else
			WARN_ON_ONCE((!rb->rb_left || !rb->rb_right) &&
				     blacks != black_path_count(rb));
		prev_key = node->key;
		count++;
	}

	WARN_ON_ONCE(count != nr_nodes);
	WARN_ON_ONCE(count < (1 << black_path_count(rb_last(&root))) - 1);

	check_postorder(nr_nodes);
	check_postorder_foreach(nr_nodes);
}

static void check_augmented(int nr_nodes)
{
	struct rb_node *rb;

	check(nr_nodes);
	for (rb = rb_first(&root); rb; rb = rb_next(rb)) {
		struct test_node *node = rb_entry(rb, struct test_node, rb);
		WARN_ON_ONCE(node->augmented != augment_recompute(node));
	}
}

static int __init rbtree_test_init(void)
{
	int i, j;
	cycles_t time1, time2, time;

	printk(KERN_ALERT "rbtree testing");

	prandom_seed_state(&rnd, 3141592653589793238ULL);
	init();

	time1 = get_cycles();

	for (i = 0; i < PERF_LOOPS; i++) {
		for (j = 0; j < NODES; j++)
			insert(nodes + j, &root);
		for (j = 0; j < NODES; j++)
			erase(nodes + j, &root);
	}

	time2 = get_cycles();
	time = time2 - time1;

	time = div_u64(time, PERF_LOOPS);
	printk(" -> %llu cycles\n", (unsigned long long)time);

	for (i = 0; i < CHECK_LOOPS; i++) {
		init();
		for (j = 0; j < NODES; j++) {
			check(j);
			insert(nodes + j, &root);
		}
		for (j = 0; j < NODES; j++) {
			check(NODES - j);
			erase(nodes + j, &root);
		}
		check(0);
	}

	printk(KERN_ALERT "augmented rbtree testing");

	init();

	time1 = get_cycles();

	for (i = 0; i < PERF_LOOPS; i++) {
		for (j = 0; j < NODES; j++)
			insert_augmented(nodes + j, &root);
		for (j = 0; j < NODES; j++)
			erase_augmented(nodes + j, &root);
	}

	time2 = get_cycles();
	time = time2 - time1;

	time = div_u64(time, PERF_LOOPS);
	printk(" -> %llu cycles\n", (unsigned long long)time);

	for (i = 0; i < CHECK_LOOPS; i++) {
		init();
		for (j = 0; j < NODES; j++) {
			check_augmented(j);
			insert_augmented(nodes + j, &root);
		}
		for (j = 0; j < NODES; j++) {
			check_augmented(NODES - j);
			erase_augmented(nodes + j, &root);
		}
		check_augmented(0);
	}

	return -EAGAIN; /* Fail will directly unload the module */
}

static void __exit rbtree_test_exit(void)
{
	printk(KERN_ALERT "test exit\n");
}

module_init(rbtree_test_init)
module_exit(rbtree_test_exit)

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michel Lespinasse");
MODULE_DESCRIPTION("Red Black Tree test");