simpleperf: remove RecordCache.

When using debug-unwind cmd for system wide profiling result, I
found it might took a lot of memory because RecordCache cached
too many samples. Since simpleperf no longer relies on RecordCache
to sort records, I think it is fine to remove RecordCache instead
of fixing it.

Bug: none.
Test: run simpleperf_unit_test.
Change-Id: Ie28ce17b4158add455004a56bbdac745f9d05f19

1 files changed, 0 insertions, 83 deletions

diff --git a/simpleperf/record_test.cpp b/simpleperf/record_test.cpp
index 5430f7be..b2e72b81 100644
--- a/simpleperf/record_test.cpp
+++ b/simpleperf/record_test.cpp
@@ -59,89 +59,6 @@ TEST_F(RecordTest, SampleRecordMatchBinary) {
   CheckRecordMatchBinary(record);
 }
 
-TEST_F(RecordTest, RecordCache_smoke) {
-  event_attr.sample_id_all = 1;
-  event_attr.sample_type |= PERF_SAMPLE_TIME;
-  RecordCache cache(true, 2, 2);
-
-  // Push r1.
-  MmapRecord* r1 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 3);
-  cache.Push(std::unique_ptr<Record>(r1));
-  ASSERT_EQ(nullptr, cache.Pop());
-
-  // Push r2.
-  MmapRecord* r2 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 1);
-  cache.Push(std::unique_ptr<Record>(r2));
-  // Pop r2.
-  std::unique_ptr<Record> popped_r = cache.Pop();
-  ASSERT_TRUE(popped_r != nullptr);
-  ASSERT_EQ(r2, popped_r.get());
-  ASSERT_EQ(nullptr, cache.Pop());
-
-  // Push r3.
-  MmapRecord* r3 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 4);
-  cache.Push(std::unique_ptr<Record>(r3));
-  ASSERT_EQ(nullptr, cache.Pop());
-
-  // Push r4.
-  MmapRecord* r4 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 6);
-  cache.Push(std::unique_ptr<Record>(r4));
-  // Pop r1.
-  popped_r = cache.Pop();
-  ASSERT_TRUE(popped_r != nullptr);
-  ASSERT_EQ(r1, popped_r.get());
-  // Pop r3.
-  popped_r = cache.Pop();
-  ASSERT_TRUE(popped_r != nullptr);
-  ASSERT_EQ(r3, popped_r.get());
-  ASSERT_EQ(nullptr, cache.Pop());
-  // Pop r4.
-  std::vector<std::unique_ptr<Record>> last_records = cache.PopAll();
-  ASSERT_EQ(1u, last_records.size());
-  ASSERT_EQ(r4, last_records[0].get());
-}
-
-TEST_F(RecordTest, RecordCache_FIFO) {
-  event_attr.sample_id_all = 1;
-  event_attr.sample_type |= PERF_SAMPLE_TIME;
-  RecordCache cache(true, 2, 2);
-  std::vector<MmapRecord*> records;
-  for (size_t i = 0; i < 10; ++i) {
-    records.push_back(new MmapRecord(event_attr, true, 1, i, 0x100, 0x200,
-                                     0x300, "mmap_record1", 0));
-    cache.Push(std::unique_ptr<Record>(records.back()));
-  }
-  std::vector<std::unique_ptr<Record>> out_records = cache.PopAll();
-  ASSERT_EQ(records.size(), out_records.size());
-  for (size_t i = 0; i < records.size(); ++i) {
-    ASSERT_EQ(records[i], out_records[i].get());
-  }
-}
-
-TEST_F(RecordTest, RecordCache_PushRecordVector) {
-  event_attr.sample_id_all = 1;
-  event_attr.sample_type |= PERF_SAMPLE_TIME;
-  RecordCache cache(true, 2, 2);
-  MmapRecord* r1 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 1);
-  MmapRecord* r2 = new MmapRecord(event_attr, true, 1, 1, 0x100, 0x200, 0x300,
-                                  "mmap_record1", 0, 3);
-  std::vector<std::unique_ptr<Record>> records;
-  records.push_back(std::unique_ptr<Record>(r1));
-  records.push_back(std::unique_ptr<Record>(r2));
-  cache.Push(std::move(records));
-  std::unique_ptr<Record> popped_r = cache.Pop();
-  ASSERT_TRUE(popped_r != nullptr);
-  ASSERT_EQ(r1, popped_r.get());
-  std::vector<std::unique_ptr<Record>> last_records = cache.PopAll();
-  ASSERT_EQ(1u, last_records.size());
-  ASSERT_EQ(r2, last_records[0].get());
-}
-
 TEST_F(RecordTest, SampleRecord_exclude_kernel_callchain) {
   SampleRecord r(event_attr, 0, 1, 0, 0, 0, 0, 0, {});
   ASSERT_EQ(0u, r.ExcludeKernelCallChain());