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-rw-r--r--src/test/test_mempool.cc459
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diff --git a/src/test/test_mempool.cc b/src/test/test_mempool.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph distributed storage system
+ *
+ * Copyright (C) 2016 Western Digital Corporation
+ *
+ * Author: Allen Samuels <allen.samuels@sandisk.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <stdio.h>
+
+#include "global/global_init.h"
+#include "common/ceph_argparse.h"
+#include "global/global_context.h"
+#include "gtest/gtest.h"
+#include "include/btree_map.h"
+#include "include/mempool.h"
+
+void check_usage(mempool::pool_index_t ix)
+{
+ mempool::pool_t *pool = &mempool::get_pool(ix);
+ mempool::stats_t total;
+ map<std::string,mempool::stats_t> m;
+ pool->get_stats(&total, &m);
+ size_t usage = pool->allocated_bytes();
+ size_t sum = 0;
+ for (auto& p : m) {
+ sum += p.second.bytes;
+ }
+ if (sum != usage) {
+ ceph::TableFormatter jf;
+ pool->dump(&jf);
+ jf.flush(std::cout);
+ }
+ EXPECT_EQ(sum, usage);
+}
+
+template<typename A, typename B>
+void eq_elements(const A& a, const B& b)
+{
+ auto lhs = a.begin();
+ auto rhs = b.begin();
+ while (lhs != a.end()) {
+ EXPECT_EQ(*lhs,*rhs);
+ lhs++;
+ rhs++;
+ }
+ EXPECT_EQ(rhs,b.end());
+}
+
+template<typename A, typename B>
+void eq_pairs(const A& a, const B& b)
+{
+ auto lhs = a.begin();
+ auto rhs = b.begin();
+ while (lhs != a.end()) {
+ EXPECT_EQ(lhs->first,rhs->first);
+ EXPECT_EQ(lhs->second,rhs->second);
+ lhs++;
+ rhs++;
+ }
+ EXPECT_EQ(rhs,b.end());
+}
+
+#define MAKE_INSERTER(inserter) \
+ template<typename A,typename B> \
+void do_##inserter(A& a, B& b, int count, int base) { \
+ for (int i = 0; i < count; ++i) { \
+ a.inserter(base + i); \
+ b.inserter(base + i); \
+ } \
+}
+
+MAKE_INSERTER(push_back);
+MAKE_INSERTER(insert);
+
+template<typename A,typename B>
+void do_insert_key(A& a, B& b, int count, int base)
+{
+ for (int i = 0; i < count; ++i) {
+ a.insert(make_pair(base+i,base+i));
+ b.insert(make_pair(base+i,base+i));
+ check_usage(mempool::osd::id);
+ }
+}
+
+TEST(mempool, vector_context)
+{
+ check_usage(mempool::osd::id);
+ EXPECT_EQ(mempool::osd::allocated_bytes(), 0u);
+ EXPECT_EQ(mempool::osd::allocated_items(), 0u);
+ for (unsigned i = 0; i < 10; ++i) {
+ vector<int> a;
+ mempool::osd::vector<int> b,c;
+ eq_elements(a,b);
+ do_push_back(a,b,i,i);
+ eq_elements(a,b);
+ check_usage(mempool::osd::id);
+
+ mempool::stats_t total;
+ map<std::string,mempool::stats_t> by_type;
+ mempool::get_pool(mempool::osd::id).get_stats(&total, &by_type);
+ EXPECT_GE(mempool::osd::allocated_bytes(), i * 4u);
+ EXPECT_GE(mempool::osd::allocated_items(), i);
+
+ c.swap(b);
+ eq_elements(a,c);
+ check_usage(mempool::osd::id);
+ a.clear();
+ b.clear();
+ c.clear();
+ }
+}
+
+TEST(mempool, list_context)
+{
+ for (unsigned i = 1; i < 10; ++i) {
+ list<int> a;
+ mempool::osd::list<int> b,c;
+ eq_elements(a,b);
+ do_push_back(a,b,i,i);
+ eq_elements(a,b);
+ c.swap(b);
+ eq_elements(a,c);
+ a.erase(a.begin());
+ c.erase(c.begin());
+ eq_elements(a,c);
+ a.clear();
+ b.clear();
+ c.clear();
+ do_push_back(a,b,i,i);
+ c.splice(c.begin(),b,b.begin(),b.end());
+
+ mempool::stats_t total;
+ map<std::string,mempool::stats_t> by_type;
+ mempool::get_pool(mempool::osd::id).get_stats(&total, &by_type);
+ EXPECT_GE(mempool::osd::allocated_bytes(), i * 4u);
+ EXPECT_EQ(mempool::osd::allocated_items(), i);
+
+ eq_elements(a,c);
+ check_usage(mempool::osd::id);
+ }
+}
+
+TEST(mempool, set_context)
+{
+ for (int i = 0; i < 10; ++i) {
+ set<int> a;
+ mempool::osd::set<int> b;
+ do_insert(a,b,i,i);
+ eq_elements(a,b);
+ check_usage(mempool::osd::id);
+ }
+
+ for (int i = 1; i < 10; ++i) {
+ set<int> a;
+ mempool::osd::set<int> b;
+ do_insert(a,b,i,0);
+ EXPECT_NE(a.find(i/2),a.end());
+ EXPECT_NE(b.find(i/2),b.end());
+ a.erase(a.find(i/2));
+ b.erase(b.find(i/2));
+ eq_elements(a,b);
+ check_usage(mempool::osd::id);
+ }
+}
+
+struct obj {
+ MEMPOOL_CLASS_HELPERS();
+ int a;
+ int b;
+ obj() : a(1), b(1) {}
+ explicit obj(int _a) : a(_a), b(2) {}
+ obj(int _a,int _b) : a(_a), b(_b) {}
+ friend inline bool operator<(const obj& l, const obj& r) {
+ return l.a < r.a;
+ }
+};
+MEMPOOL_DEFINE_OBJECT_FACTORY(obj, obj, osdmap);
+
+TEST(mempool, test_factory)
+{
+ obj *o1 = new obj();
+ obj *o2 = new obj(10);
+ obj *o3 = new obj(20,30);
+ check_usage(mempool::osdmap::id);
+ EXPECT_NE(o1,nullptr);
+ EXPECT_EQ(o1->a,1);
+ EXPECT_EQ(o1->b,1);
+ EXPECT_EQ(o2->a,10);
+ EXPECT_EQ(o2->b,2);
+ EXPECT_EQ(o3->a,20);
+ EXPECT_EQ(o3->b,30);
+
+ delete o1;
+ delete o2;
+ delete o3;
+ check_usage(mempool::osdmap::id);
+}
+
+TEST(mempool, vector)
+{
+ {
+ mempool::osd::vector<int> v;
+ v.push_back(1);
+ v.push_back(2);
+ }
+ {
+ mempool::osdmap::vector<obj> v;
+ v.push_back(obj());
+ v.push_back(obj(1));
+ }
+}
+
+TEST(mempool, set)
+{
+ mempool::osd::set<int> set_int;
+ set_int.insert(1);
+ set_int.insert(2);
+ mempool::osdmap::set<obj> set_obj;
+ set_obj.insert(obj());
+ set_obj.insert(obj(1));
+ set_obj.insert(obj(1, 2));
+}
+
+TEST(mempool, map)
+{
+ {
+ mempool::osd::map<int,int> v;
+ v[1] = 2;
+ v[3] = 4;
+ }
+ {
+ mempool::osdmap::map<int,obj> v;
+ v[1] = obj();
+ v[2] = obj(2);
+ v[3] = obj(2, 3);
+ }
+}
+
+TEST(mempool, list)
+{
+ {
+ mempool::osd::list<int> v;
+ v.push_back(1);
+ v.push_back(2);
+ }
+ {
+ mempool::osdmap::list<obj> v;
+ v.push_back(obj());
+ v.push_back(obj(1));
+ }
+
+}
+
+TEST(mempool, dump)
+{
+ ostringstream ostr;
+
+ Formatter* f = Formatter::create("xml-pretty", "xml-pretty", "xml-pretty");
+ mempool::dump(f);
+ f->flush(ostr);
+
+ delete f;
+ ASSERT_NE(ostr.str().find(mempool::get_pool_name((mempool::pool_index_t)0)),
+ std::string::npos);
+
+ ostr.str("");
+
+ f = Formatter::create("html-pretty", "html-pretty", "html-pretty");
+ mempool::dump(f);
+ f->flush(ostr);
+
+ delete f;
+ ASSERT_NE(ostr.str().find(mempool::get_pool_name((mempool::pool_index_t)0)),
+ std::string::npos);
+
+ ostr.str("");
+ f = Formatter::create("table", "table", "table");
+ mempool::dump(f);
+ f->flush(ostr);
+
+ delete f;
+ ASSERT_NE(ostr.str().find(mempool::get_pool_name((mempool::pool_index_t)0)),
+ std::string::npos);
+
+ ostr.str("");
+
+ f = Formatter::create("json-pretty", "json-pretty", "json-pretty");
+ mempool::dump(f);
+ f->flush(ostr);
+ delete f;
+
+ ASSERT_NE(ostr.str().find(mempool::get_pool_name((mempool::pool_index_t)0)),
+ std::string::npos);
+}
+
+TEST(mempool, unordered_map)
+{
+ mempool::osdmap::unordered_map<int,obj> h;
+ h[1] = obj();
+ h[2] = obj(1);
+}
+
+TEST(mempool, string_test)
+{
+ mempool::osdmap::string s;
+ s.reserve(100);
+ EXPECT_GE(mempool::osdmap::allocated_items(), s.capacity() + 1u); // +1 for zero-byte termination :
+ for (size_t i = 0; i < 10; ++i) {
+ s += '1';
+ s.append(s);
+ EXPECT_GE(mempool::osdmap::allocated_items(), s.capacity() + 1u);
+ }
+}
+
+TEST(mempool, bufferlist)
+{
+ bufferlist bl;
+ int len = 1048576;
+ size_t before = mempool::buffer_anon::allocated_bytes();
+ cout << "before " << before << std::endl;
+ bl.append(buffer::create_aligned(len, 4096));
+ size_t after = mempool::buffer_anon::allocated_bytes();
+ cout << "after " << after << std::endl;
+ ASSERT_GE(after, before + len);
+}
+
+TEST(mempool, bufferlist_reassign)
+{
+ bufferlist bl;
+ size_t items_before = mempool::buffer_anon::allocated_items();
+ size_t bytes_before = mempool::buffer_anon::allocated_bytes();
+ bl.append("fooo");
+ ASSERT_EQ(items_before + 1, mempool::buffer_anon::allocated_items());
+ ASSERT_LT(bytes_before, mempool::buffer_anon::allocated_bytes());
+
+ // move existing bl
+ bl.reassign_to_mempool(mempool::mempool_osd);
+ ASSERT_EQ(items_before, mempool::buffer_anon::allocated_items());
+ ASSERT_EQ(bytes_before, mempool::buffer_anon::allocated_bytes());
+
+ // additional appends should go to the same pool
+ items_before = mempool::osd::allocated_items();
+ bytes_before = mempool::osd::allocated_bytes();
+ cout << "anon b " << mempool::buffer_anon::allocated_bytes() << std::endl;
+ for (unsigned i = 0; i < 1000; ++i) {
+ bl.append("asdfddddddddddddddddddddddasfdasdfasdfasdfasdfasdf");
+ }
+ cout << "anon a " << mempool::buffer_anon::allocated_bytes() << std::endl;
+ ASSERT_LT(items_before, mempool::osd::allocated_items());
+ ASSERT_LT(bytes_before, mempool::osd::allocated_bytes());
+
+ // try_.. won't
+ items_before = mempool::osd::allocated_items();
+ bytes_before = mempool::osd::allocated_bytes();
+ bl.try_assign_to_mempool(mempool::mempool_bloom_filter);
+ ASSERT_EQ(items_before, mempool::osd::allocated_items());
+ ASSERT_EQ(bytes_before, mempool::osd::allocated_bytes());
+}
+
+TEST(mempool, bufferlist_c_str)
+{
+ bufferlist bl;
+ int len = 1048576;
+ size_t before = mempool::osd::allocated_bytes();
+ bl.append(buffer::create_aligned(len, 4096));
+ bl.append(buffer::create_aligned(len, 4096));
+ bl.reassign_to_mempool(mempool::mempool_osd);
+ size_t after = mempool::osd::allocated_bytes();
+ ASSERT_GE(after, before + len * 2);
+ bl.c_str();
+ size_t after_c_str = mempool::osd::allocated_bytes();
+ ASSERT_EQ(after, after_c_str);
+}
+
+TEST(mempool, btree_map_test)
+{
+ typedef mempool::pool_allocator<mempool::mempool_osd,
+ pair<const uint64_t,uint64_t>> allocator_t;
+ typedef btree::btree_map<uint64_t,uint64_t,std::less<uint64_t>,allocator_t> btree_t;
+
+ {
+ btree_t btree;
+ ASSERT_EQ(0, mempool::osd::allocated_items());
+ ASSERT_EQ(0, mempool::osd::allocated_bytes());
+ for (size_t i = 0; i < 1000; ++i) {
+ btree[rand()] = rand();
+ }
+ ASSERT_LT(0, mempool::osd::allocated_items());
+ ASSERT_LT(0, mempool::osd::allocated_bytes());
+ }
+
+ ASSERT_EQ(0, mempool::osd::allocated_items());
+ ASSERT_EQ(0, mempool::osd::allocated_bytes());
+}
+
+TEST(mempool, check_shard_select)
+{
+ const size_t samples = mempool::num_shards * 100;
+ std::atomic_int shards[mempool::num_shards] = {0};
+ std::vector<std::thread> workers;
+ for (size_t i = 0; i < samples; i++) {
+ workers.push_back(
+ std::thread([&](){
+ size_t i = mempool::pool_t::pick_a_shard_int();
+ shards[i]++;
+ }));
+ }
+ for (auto& t:workers) {
+ t.join();
+ }
+ workers.clear();
+
+ size_t missed = 0;
+ for (size_t i = 0; i < mempool::num_shards; i++) {
+ if (shards[i] == 0) {
+ missed++;
+ }
+ }
+
+ // If more than half of the shards did not get anything,
+ // the distribution is bad enough to deserve a failure.
+ EXPECT_LT(missed, mempool::num_shards / 2);
+}
+
+
+int main(int argc, char **argv)
+{
+ vector<const char*> args;
+ argv_to_vec(argc, (const char **)argv, args);
+
+ auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT,
+ CODE_ENVIRONMENT_UTILITY,
+ CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+ common_init_finish(g_ceph_context);
+
+ // enable debug mode for the tests
+ mempool::set_debug_mode(true);
+
+ ::testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}
+
+
+/*
+ * Local Variables:
+ * compile-command: "cd ../../build ; make -j4 &&
+ * make unittest_mempool &&
+ * valgrind --tool=memcheck ./unittest_mempool --gtest_filter=*.*"
+ * End:
+ */
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