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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "test/crimson/gtest_seastar.h"
#include "test/crimson/seastore/transaction_manager_test_state.h"
#include "crimson/os/seastore/cache.h"
#include "crimson/os/seastore/transaction_manager.h"
#include "crimson/os/seastore/segment_manager.h"
#include "crimson/os/seastore/extentmap_manager.h"
#include "test/crimson/seastore/test_block.h"
using namespace crimson;
using namespace crimson::os;
using namespace crimson::os::seastore;
namespace {
[[maybe_unused]] seastar::logger& logger() {
return crimson::get_logger(ceph_subsys_test);
}
}
struct extentmap_manager_test_t :
public seastar_test_suite_t,
TMTestState {
ExtentMapManagerRef extmap_manager;
extentmap_manager_test_t() {}
seastar::future<> set_up_fut() final {
return tm_setup().then([this] {
extmap_manager = extentmap_manager::create_extentmap_manager(*tm);
return seastar::now();
});
}
seastar::future<> tear_down_fut() final {
return tm_teardown().then([this] {
extmap_manager.reset();
return seastar::now();
});
}
using test_extmap_t = std::map<uint32_t, lext_map_val_t>;
test_extmap_t test_ext_mappings;
extent_mapping_t insert_extent(
extmap_root_t &extmap_root,
Transaction &t,
uint32_t lo,
lext_map_val_t val) {
auto extent = extmap_manager->add_lextent(extmap_root, t, lo, val).unsafe_get0();
EXPECT_EQ(lo, extent.logical_offset);
EXPECT_EQ(val.laddr, extent.laddr);
EXPECT_EQ(val.length, extent.length);
test_ext_mappings.emplace(extent.logical_offset,
lext_map_val_t{extent.laddr, extent.length});
return extent;
}
extent_map_list_t find_extent(
extmap_root_t &extmap_root,
Transaction &t,
uint32_t lo,
uint32_t len) {
auto extent = extmap_manager->find_lextent(extmap_root, t, lo, len).unsafe_get0();
EXPECT_EQ(lo, extent.front().logical_offset);
EXPECT_EQ(len, extent.front().length);
return extent;
}
extent_map_list_t findno_extent(
extmap_root_t &extmap_root,
Transaction &t,
uint32_t lo,
uint32_t len) {
auto extent = extmap_manager->find_lextent(extmap_root, t, lo, len).unsafe_get0();
EXPECT_EQ(extent.empty(), true);
return extent;
}
void rm_extent(
extmap_root_t &extmap_root,
Transaction &t,
uint32_t lo,
lext_map_val_t val ) {
auto ret = extmap_manager->rm_lextent(extmap_root, t, lo, val).unsafe_get0();
EXPECT_TRUE(ret);
test_ext_mappings.erase(lo);
}
void check_mappings(extmap_root_t &extmap_root, Transaction &t) {
for (const auto& [lo, ext]: test_ext_mappings){
const auto ext_list = find_extent(extmap_root, t, lo, ext.length);
ASSERT_EQ(ext_list.size(), 1);
const auto& ext_map = ext_list.front();
EXPECT_EQ(ext.laddr, ext_map.laddr);
EXPECT_EQ(ext.length, ext_map.length);
}
}
void check_mappings(extmap_root_t &extmap_root) {
auto t = tm->create_transaction();
check_mappings(extmap_root, *t);
}
void replay() {
logger().debug("{}: begin", __func__);
restart();
extmap_manager = extentmap_manager::create_extentmap_manager(*tm);
logger().debug("{}: end", __func__);
}
};
TEST_F(extentmap_manager_test_t, basic)
{
run_async([this] {
extmap_root_t extmap_root(0, L_ADDR_NULL);
{
auto t = tm->create_transaction();
extmap_root = extmap_manager->initialize_extmap(*t).unsafe_get0();
tm->submit_transaction(std::move(t)).unsafe_get();
}
uint32_t len = 4096;
uint32_t lo = 0x1 * len;
{
auto t = tm->create_transaction();
logger().debug("first transaction");
[[maybe_unused]] auto addref = insert_extent(extmap_root, *t, lo, {lo, len});
[[maybe_unused]] auto seekref = find_extent(extmap_root, *t, lo, len);
tm->submit_transaction(std::move(t)).unsafe_get();
}
{
auto t = tm->create_transaction();
logger().debug("second transaction");
auto seekref = find_extent(extmap_root, *t, lo, len);
rm_extent(extmap_root, *t, lo, {seekref.front().laddr, len});
[[maybe_unused]] auto seekref2 = findno_extent(extmap_root, *t, lo, len);
tm->submit_transaction(std::move(t)).unsafe_get();
}
{
auto t = tm->create_transaction();
logger().debug("third transaction");
[[maybe_unused]] auto seekref = findno_extent(extmap_root, *t, lo, len);
tm->submit_transaction(std::move(t)).unsafe_get();
}
});
}
TEST_F(extentmap_manager_test_t, force_leafnode_split)
{
run_async([this] {
extmap_root_t extmap_root(0, L_ADDR_NULL);
{
auto t = tm->create_transaction();
extmap_root = extmap_manager->initialize_extmap(*t).unsafe_get0();
tm->submit_transaction(std::move(t)).unsafe_get();
}
uint32_t len = 4096;
uint32_t lo = 0;
for (unsigned i = 0; i < 40; i++) {
auto t = tm->create_transaction();
logger().debug("opened transaction");
for (unsigned j = 0; j < 10; ++j) {
[[maybe_unused]] auto addref = insert_extent(extmap_root, *t, lo, {lo, len});
lo += len;
if ((i % 20 == 0) && (j == 5)) {
check_mappings(extmap_root, *t);
}
}
logger().debug("force split submit transaction i = {}", i);
tm->submit_transaction(std::move(t)).unsafe_get();
check_mappings(extmap_root);
}
});
}
TEST_F(extentmap_manager_test_t, force_leafnode_split_merge)
{
run_async([this] {
extmap_root_t extmap_root(0, L_ADDR_NULL);
{
auto t = tm->create_transaction();
extmap_root = extmap_manager->initialize_extmap(*t).unsafe_get0();
tm->submit_transaction(std::move(t)).unsafe_get();
}
uint32_t len = 4096;
uint32_t lo = 0;
for (unsigned i = 0; i < 80; i++) {
auto t = tm->create_transaction();
logger().debug("opened split_merge transaction");
for (unsigned j = 0; j < 5; ++j) {
[[maybe_unused]] auto addref = insert_extent(extmap_root, *t, lo, {lo, len});
lo += len;
if ((i % 10 == 0) && (j == 3)) {
check_mappings(extmap_root, *t);
}
}
logger().debug("submitting transaction");
tm->submit_transaction(std::move(t)).unsafe_get();
if (i % 50 == 0) {
check_mappings(extmap_root);
}
}
auto t = tm->create_transaction();
int i = 0;
for (auto iter = test_ext_mappings.begin(); iter != test_ext_mappings.end();) {
auto [lo, ext] = *iter;
++iter;
if (i % 3 != 0) {
rm_extent(extmap_root, *t, lo, ext);
}
i++;
if (i % 10 == 0) {
logger().debug("submitting transaction i= {}", i);
tm->submit_transaction(std::move(t)).unsafe_get();
t = tm->create_transaction();
}
if (i % 100 == 0) {
logger().debug("check_mappings i= {}", i);
check_mappings(extmap_root, *t);
check_mappings(extmap_root);
}
}
logger().debug("finally submitting transaction ");
tm->submit_transaction(std::move(t)).unsafe_get();
});
}
TEST_F(extentmap_manager_test_t, force_leafnode_split_merge_replay)
{
run_async([this] {
extmap_root_t extmap_root(0, L_ADDR_NULL);
{
auto t = tm->create_transaction();
extmap_root = extmap_manager->initialize_extmap(*t).unsafe_get0();
tm->submit_transaction(std::move(t)).unsafe_get();
replay();
}
uint32_t len = 4096;
uint32_t lo = 0;
for (unsigned i = 0; i < 50; i++) {
auto t = tm->create_transaction();
logger().debug("opened split_merge transaction");
for (unsigned j = 0; j < 5; ++j) {
[[maybe_unused]] auto addref = insert_extent(extmap_root, *t, lo, {lo, len});
lo += len;
}
logger().debug("submitting transaction");
tm->submit_transaction(std::move(t)).unsafe_get();
}
replay();
auto t = tm->create_transaction();
int i = 0;
for (auto iter = test_ext_mappings.begin(); iter != test_ext_mappings.end();) {
auto [lo, ext] = *iter;
++iter;
rm_extent(extmap_root, *t, lo, ext);
i++;
if (i % 10 == 0) {
logger().debug("submitting transaction i= {}", i);
tm->submit_transaction(std::move(t)).unsafe_get();
t = tm->create_transaction();
}
if (i% 100 == 0){
check_mappings(extmap_root);
}
}
logger().debug("finally submitting transaction ");
tm->submit_transaction(std::move(t)).unsafe_get();
replay();
check_mappings(extmap_root);
});
}
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