From a267e6c2f935fcab94e66e0f1c897a9357d5f3a9 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 15 Sep 2011 18:58:27 +0000
Subject: Benchmark sorted array.

git-svn-id: http://svn.drobilla.net/zix/trunk@10 df6676b4-ccc9-40e5-b5d6-7c4628a128e3
---
 test/tree_bench.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 103 insertions(+), 7 deletions(-)

(limited to 'test')

diff --git a/test/tree_bench.c b/test/tree_bench.c
index 2c8ce97..c428eb0 100644
--- a/test/tree_bench.c
+++ b/test/tree_bench.c
@@ -39,6 +39,14 @@ int_cmp(const void* a, const void* b, void* user_data)
 	return ia - ib;
 }
 
+static int
+int_ptr_cmp(const void* a, const void* b, void* user_data)
+{
+	const intptr_t ia = *(intptr_t*)a;
+	const intptr_t ib = *(intptr_t*)b;
+	return ia - ib;
+}
+
 static int
 test_fail(const char* fmt, ...)
 {
@@ -74,8 +82,8 @@ bench_end(const struct timespec* start_t)
 }
 
 static int
-bench_zix(size_t n_elems,
-          FILE* insert_dat, FILE* search_dat, FILE* iter_dat, FILE* del_dat)
+bench_zix_tree(size_t n_elems,
+               FILE* insert_dat, FILE* search_dat, FILE* iter_dat, FILE* del_dat)
 {
 	intptr_t     r;
 	ZixTreeIter ti;
@@ -142,6 +150,93 @@ bench_zix(size_t n_elems,
 	return EXIT_SUCCESS;
 }
 
+static int
+bench_zix_sorted_array(size_t n_elems,
+                       FILE* insert_dat, FILE* search_dat, FILE* iter_dat, FILE* del_dat)
+{
+	intptr_t    r;
+	ZixSortedArrayIter ti;
+
+	ZixSortedArray* t = zix_sorted_array_new(true, int_ptr_cmp, NULL, sizeof(intptr_t));
+
+	srand(seed);
+
+	// Insert n_elems elements
+	struct timespec insert_start = bench_start();
+	for (size_t i = 0; i < n_elems; ++i) {
+		r = rand();
+		int status = zix_sorted_array_insert(t, &r, &ti);
+		if (status) {
+			return test_fail("Insert failed\n");
+		}
+		if (*(intptr_t*)zix_sorted_array_get_data(ti) != r) {
+			return test_fail("Data corrupt (saw %" PRIdPTR ", expected %zu)\n",
+			                 *(intptr_t*)zix_sorted_array_get_data(ti), r);
+		}
+	}
+	fprintf(insert_dat, "\t%lf", bench_end(&insert_start));
+
+	srand(seed);
+
+	// Search for all elements
+	struct timespec search_start = bench_start();
+	for (size_t i = 0; i < n_elems; ++i) {
+		r = rand();
+		if (zix_sorted_array_find(t, &r, &ti)) {
+			return test_fail("Find failed\n");
+		}
+		if (*(intptr_t*)zix_sorted_array_get_data(ti) != r) {
+			return test_fail("Data corrupt (saw %" PRIdPTR ", expected %zu)\n",
+			                 *(intptr_t*)zix_sorted_array_get_data(ti), r);
+		}
+	}
+	fprintf(search_dat, "\t%lf", bench_end(&search_start));
+
+	srand(seed);
+
+	// Iterate over all elements
+	struct timespec iter_start = bench_start();
+	size_t i = 0;
+	intptr_t last = -1;
+	for (ZixSortedArrayIter iter = zix_sorted_array_begin(t);
+	     !zix_sorted_array_iter_is_end(t, iter);
+	     iter = zix_sorted_array_iter_next(t, iter), ++i) {
+		r = rand();
+		const intptr_t iter_data = *(intptr_t*)zix_sorted_array_get_data(iter);
+		if (iter_data < last) {
+			return test_fail("Iter corrupt (%" PRIdPTR " < %zu)\n",
+			                 iter_data, last);
+		}
+		last = iter_data;
+	}
+	fprintf(iter_dat, "\t%lf", bench_end(&iter_start));
+
+	srand(seed);
+
+	// Delete all elements
+	struct timespec del_start = bench_start();
+	for (size_t i = 0; i < n_elems; i++) {
+		r = rand();
+		ZixSortedArrayIter item;
+		if (zix_sorted_array_find(t, &r, &item) != ZIX_STATUS_SUCCESS) {
+			return test_fail("Failed to find item to remove\n");
+		}
+		if (zix_sorted_array_remove(t, item)) {
+			return test_fail("Error removing item\n");
+		}
+	}
+	fprintf(del_dat, "\t%lf", bench_end(&del_start));
+
+	if (zix_sorted_array_size(t) != 0) {
+		return test_fail("Array is not empty after removing all items\n");
+	}
+
+	zix_sorted_array_free(t);
+
+	return EXIT_SUCCESS;
+
+}
+
 static int
 bench_glib(size_t n_elems,
            FILE* insert_dat, FILE* search_dat, FILE* iter_dat, FILE* del_dat)
@@ -222,16 +317,17 @@ main(int argc, char** argv)
 	FILE* search_dat = fopen("search.dat", "w");
 	FILE* iter_dat   = fopen("iterate.dat", "w");
 	FILE* del_dat    = fopen("del.dat", "w");
-	fprintf(insert_dat, "# n\tZixTree\tGSequence\n");
-	fprintf(search_dat, "# n\tZixTree\tGSequence\n");
-	fprintf(iter_dat, "# n\tZixTree\tGSequence\n");
-	fprintf(del_dat, "# n\tZixTree\tGSequence\n");
+	fprintf(insert_dat, "# n\tZixTree\tZixSortedArray\tGSequence\n");
+	fprintf(search_dat, "# n\tZixTree\tZixSortedArray\tGSequence\n");
+	fprintf(iter_dat, "# n\tZixTree\tZixSortedArray\tGSequence\n");
+	fprintf(del_dat, "# n\tZixTree\tZixSortedArray\tGSequence\n");
 	for (size_t n = min_n; n <= max_n; n *= 2) {
 		fprintf(insert_dat, "%zu", n);
 		fprintf(search_dat, "%zu", n);
 		fprintf(iter_dat, "%zu", n);
 		fprintf(del_dat, "%zu", n);
-		bench_zix(n, insert_dat, search_dat, iter_dat, del_dat);
+		bench_zix_tree(n, insert_dat, search_dat, iter_dat, del_dat);
+		bench_zix_sorted_array(n, insert_dat, search_dat, iter_dat, del_dat);
 		bench_glib(n, insert_dat, search_dat, iter_dat, del_dat);
 		fprintf(insert_dat, "\n");
 		fprintf(search_dat, "\n");
-- 
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