--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * In memory space allocator test cases.
+ * Author: Ramesh Chander, Ramesh.Chander@sandisk.com
+ */
+#include <iostream>
+#include <boost/scoped_ptr.hpp>
+#include <gtest/gtest.h>
+
+#include "common/Mutex.h"
+#include "common/Cond.h"
+#include "common/errno.h"
+#include "include/stringify.h"
+#include "include/Context.h"
+#include "os/bluestore/Allocator.h"
+#include "os/bluestore/BitAllocator.h"
+
+
+#if GTEST_HAS_PARAM_TEST
+
+class AllocTest : public ::testing::TestWithParam<const char*> {
+public:
+ boost::scoped_ptr<Allocator> alloc;
+ AllocTest(): alloc(0) { }
+ void init_alloc(int64_t size, uint64_t min_alloc_size) {
+ std::cout << "Creating alloc type " << string(GetParam()) << " \n";
+ alloc.reset(Allocator::create(g_ceph_context, string(GetParam()), size,
+ min_alloc_size));
+ }
+
+ void init_close() {
+ alloc.reset(0);
+ }
+};
+
+TEST_P(AllocTest, test_alloc_init)
+{
+ int64_t blocks = BmapEntry::size();
+ init_alloc(blocks, 1);
+ ASSERT_EQ(0U, alloc->get_free());
+ alloc->shutdown();
+ blocks = BitMapZone::get_total_blocks() * 2 + 16;
+ init_alloc(blocks, 1);
+ ASSERT_EQ(0U, alloc->get_free());
+ alloc->shutdown();
+ blocks = BitMapZone::get_total_blocks() * 2;
+ init_alloc(blocks, 1);
+ ASSERT_EQ(alloc->get_free(), (uint64_t) 0);
+}
+
+TEST_P(AllocTest, test_alloc_min_alloc)
+{
+ int64_t block_size = 1024;
+ int64_t blocks = BitMapZone::get_total_blocks() * 2 * block_size;
+
+ {
+ init_alloc(blocks, block_size);
+ alloc->init_add_free(block_size, block_size);
+ EXPECT_EQ(alloc->reserve(block_size), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(block_size, alloc->allocate(block_size, block_size,
+ 0, (int64_t) 0, &extents));
+ }
+
+ /*
+ * Allocate extent and make sure all comes in single extent.
+ */
+ {
+ alloc->init_add_free(0, block_size * 4);
+ EXPECT_EQ(alloc->reserve(block_size * 4), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(4*block_size,
+ alloc->allocate(4 * (uint64_t)block_size, (uint64_t) block_size,
+ 0, (int64_t) 0, &extents));
+ EXPECT_EQ(1u, extents.size());
+ EXPECT_EQ(extents[0].length, 4 * block_size);
+ }
+
+ /*
+ * Allocate extent and make sure we get two different extents.
+ */
+ {
+ alloc->init_add_free(0, block_size * 2);
+ alloc->init_add_free(3 * block_size, block_size * 2);
+ EXPECT_EQ(alloc->reserve(block_size * 4), 0);
+ AllocExtentVector extents;
+
+ EXPECT_EQ(4*block_size,
+ alloc->allocate(4 * (uint64_t)block_size, (uint64_t) block_size,
+ 0, (int64_t) 0, &extents));
+ EXPECT_EQ(2u, extents.size());
+ EXPECT_EQ(extents[0].length, 2 * block_size);
+ EXPECT_EQ(extents[1].length, 2 * block_size);
+ }
+ alloc->shutdown();
+}
+
+TEST_P(AllocTest, test_alloc_min_max_alloc)
+{
+ int64_t block_size = 1024;
+ int64_t blocks = BitMapZone::get_total_blocks() * 2 * block_size;
+
+ init_alloc(blocks, block_size);
+
+ /*
+ * Make sure we get all extents different when
+ * min_alloc_size == max_alloc_size
+ */
+ {
+ alloc->init_add_free(0, block_size * 4);
+ EXPECT_EQ(alloc->reserve(block_size * 4), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(4*block_size,
+ alloc->allocate(4 * (uint64_t)block_size, (uint64_t) block_size,
+ block_size, (int64_t) 0, &extents));
+ for (auto e : extents) {
+ EXPECT_EQ(e.length, block_size);
+ }
+ EXPECT_EQ(4u, extents.size());
+ }
+
+
+ /*
+ * Make sure we get extents of length max_alloc size
+ * when max alloc size > min_alloc size
+ */
+ {
+ alloc->init_add_free(0, block_size * 4);
+ EXPECT_EQ(alloc->reserve(block_size * 4), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(4*block_size,
+ alloc->allocate(4 * (uint64_t)block_size, (uint64_t) block_size,
+ 2 * block_size, (int64_t) 0, &extents));
+ EXPECT_EQ(2u, extents.size());
+ for (auto& e : extents) {
+ EXPECT_EQ(e.length, block_size * 2);
+ }
+ }
+
+ /*
+ * Make sure allocations are of min_alloc_size when min_alloc_size > block_size.
+ */
+ {
+ alloc->init_add_free(0, block_size * 1024);
+ EXPECT_EQ(alloc->reserve(block_size * 1024), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(1024 * block_size,
+ alloc->allocate(1024 * (uint64_t)block_size,
+ (uint64_t) block_size * 4,
+ block_size * 4, (int64_t) 0, &extents));
+ for (auto& e : extents) {
+ EXPECT_EQ(e.length, block_size * 4);
+ }
+ EXPECT_EQ(1024u/4, extents.size());
+ }
+
+ /*
+ * Allocate and free.
+ */
+ {
+ alloc->init_add_free(0, block_size * 16);
+ EXPECT_EQ(alloc->reserve(block_size * 16), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(16 * block_size,
+ alloc->allocate(16 * (uint64_t)block_size, (uint64_t) block_size,
+ 2 * block_size, (int64_t) 0, &extents));
+
+ EXPECT_EQ(extents.size(), 8u);
+ for (auto& e : extents) {
+ EXPECT_EQ(e.length, 2 * block_size);
+ }
+ }
+}
+
+TEST_P(AllocTest, test_alloc_failure)
+{
+ int64_t block_size = 1024;
+ int64_t blocks = BitMapZone::get_total_blocks() * block_size;
+
+ init_alloc(blocks, block_size);
+ {
+ alloc->init_add_free(0, block_size * 256);
+ alloc->init_add_free(block_size * 512, block_size * 256);
+
+ EXPECT_EQ(alloc->reserve(block_size * 512), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(512 * block_size,
+ alloc->allocate(512 * (uint64_t)block_size,
+ (uint64_t) block_size * 256,
+ block_size * 256, (int64_t) 0, &extents));
+ alloc->init_add_free(0, block_size * 256);
+ alloc->init_add_free(block_size * 512, block_size * 256);
+ extents.clear();
+ EXPECT_EQ(alloc->reserve(block_size * 512), 0);
+ EXPECT_EQ(-ENOSPC,
+ alloc->allocate(512 * (uint64_t)block_size,
+ (uint64_t) block_size * 512,
+ block_size * 512, (int64_t) 0, &extents));
+ }
+}
+
+TEST_P(AllocTest, test_alloc_big)
+{
+ int64_t block_size = 4096;
+ int64_t blocks = 104857600;
+ int64_t mas = 4096;
+ init_alloc(blocks*block_size, block_size);
+ alloc->init_add_free(2*block_size, (blocks-2)*block_size);
+ for (int64_t big = mas; big < 1048576*128; big*=2) {
+ cout << big << std::endl;
+ EXPECT_EQ(alloc->reserve(big), 0);
+ AllocExtentVector extents;
+ EXPECT_EQ(big,
+ alloc->allocate(big, mas, 0, &extents));
+ }
+}
+
+TEST_P(AllocTest, test_alloc_hint_bmap)
+{
+ if (GetParam() == std::string("stupid")) {
+ return;
+ }
+ int64_t blocks = BitMapArea::get_level_factor(g_ceph_context, 2) * 4;
+ int64_t allocated = 0;
+ int64_t zone_size = 1024;
+ g_conf->set_val("bluestore_bitmapallocator_blocks_per_zone",
+ std::to_string(zone_size));
+
+ init_alloc(blocks, 1);
+ alloc->init_add_free(0, blocks);
+
+ AllocExtentVector extents;
+ alloc->reserve(blocks);
+
+ allocated = alloc->allocate(1, 1, 1, zone_size, &extents);
+ ASSERT_EQ(1, allocated);
+ ASSERT_EQ(1u, extents.size());
+ ASSERT_EQ(extents[0].offset, (uint64_t) zone_size);
+
+ extents.clear();
+ allocated = alloc->allocate(1, 1, 1, zone_size * 2 - 1, &extents);
+ EXPECT_EQ(1, allocated);
+ ASSERT_EQ(1u, extents.size());
+ EXPECT_EQ((int64_t) extents[0].offset, zone_size * 2 - 1);
+
+ /*
+ * Wrap around with hint
+ */
+ extents.clear();
+ allocated = alloc->allocate(zone_size * 2, 1, 1, blocks - zone_size * 2,
+ &extents);
+ ASSERT_EQ(zone_size * 2, allocated);
+ EXPECT_EQ(zone_size * 2, (int)extents.size());
+ EXPECT_EQ((int64_t)extents[0].offset, blocks - zone_size * 2);
+
+ extents.clear();
+ allocated = alloc->allocate(zone_size, 1, 1, blocks - zone_size, &extents);
+ ASSERT_EQ(zone_size, allocated);
+ EXPECT_EQ(zone_size, (int)extents.size());
+ EXPECT_EQ(extents[0].offset, (uint64_t) 0);
+ /*
+ * Verify out-of-bound hint
+ */
+ extents.clear();
+ allocated = alloc->allocate(1, 1, 1, blocks, &extents);
+ ASSERT_EQ(1, allocated);
+ EXPECT_EQ(1, (int)extents.size());
+
+ extents.clear();
+ allocated = alloc->allocate(1, 1, 1, blocks * 3 + 1 , &extents);
+ ASSERT_EQ(1, allocated);
+ EXPECT_EQ(1, (int)extents.size());
+}
+
+TEST_P(AllocTest, test_alloc_non_aligned_len)
+{
+ int64_t block_size = 1 << 12;
+ int64_t blocks = (1 << 20) * 100;
+ int64_t want_size = 1 << 22;
+ int64_t alloc_unit = 1 << 20;
+
+ init_alloc(blocks*block_size, block_size);
+ alloc->init_add_free(0, 2097152);
+ alloc->init_add_free(2097152, 1064960);
+ alloc->init_add_free(3670016, 2097152);
+
+ EXPECT_EQ(0, alloc->reserve(want_size));
+ AllocExtentVector extents;
+ EXPECT_EQ(want_size, alloc->allocate(want_size, alloc_unit, 0, &extents));
+}
+
+
+INSTANTIATE_TEST_CASE_P(
+ Allocator,
+ AllocTest,
+ ::testing::Values("stupid", "bitmap"));
+
+#else
+
+TEST(DummyTest, ValueParameterizedTestsAreNotSupportedOnThisPlatform) {}
+#endif
Code Review / stor4nfv.git / blobdiff