Extract benchmark from db_test.cc.

The benchmark in db/db_test.cc is extracted to its own file,
benchmarks/db_bench_log.cc.

PiperOrigin-RevId: 418713499

1 files changed, 0 insertions, 64 deletions

diff --git a/db/db_test.cc b/db/db_test.cc
index 908b41d..7f22688 100644
--- a/db/db_test.cc
+++ b/db/db_test.cc
@@ -9,7 +9,6 @@
 #include <string>
 
 #include "gtest/gtest.h"
-#include "benchmark/benchmark.h"
 #include "db/db_impl.h"
 #include "db/filename.h"
 #include "db/version_set.h"
@@ -2295,72 +2294,9 @@ TEST_F(DBTest, Randomized) {
   } while (ChangeOptions());
 }
 
-std::string MakeKey(unsigned int num) {
-  char buf[30];
-  std::snprintf(buf, sizeof(buf), "%016u", num);
-  return std::string(buf);
-}
-
-static void BM_LogAndApply(benchmark::State& state) {
-  const int num_base_files = state.range(0);
-
-  std::string dbname = testing::TempDir() + "leveldb_test_benchmark";
-  DestroyDB(dbname, Options());
-
-  DB* db = nullptr;
-  Options opts;
-  opts.create_if_missing = true;
-  Status s = DB::Open(opts, dbname, &db);
-  ASSERT_LEVELDB_OK(s);
-  ASSERT_TRUE(db != nullptr);
-
-  delete db;
-  db = nullptr;
-
-  Env* env = Env::Default();
-
-  port::Mutex mu;
-  MutexLock l(&mu);
-
-  InternalKeyComparator cmp(BytewiseComparator());
-  Options options;
-  VersionSet vset(dbname, &options, nullptr, &cmp);
-  bool save_manifest;
-  ASSERT_LEVELDB_OK(vset.Recover(&save_manifest));
-  VersionEdit vbase;
-  uint64_t fnum = 1;
-  for (int i = 0; i < num_base_files; i++) {
-    InternalKey start(MakeKey(2 * fnum), 1, kTypeValue);
-    InternalKey limit(MakeKey(2 * fnum + 1), 1, kTypeDeletion);
-    vbase.AddFile(2, fnum++, 1 /* file size */, start, limit);
-  }
-  ASSERT_LEVELDB_OK(vset.LogAndApply(&vbase, &mu));
-
-  uint64_t start_micros = env->NowMicros();
-
-  for (auto st : state) {
-    VersionEdit vedit;
-    vedit.RemoveFile(2, fnum);
-    InternalKey start(MakeKey(2 * fnum), 1, kTypeValue);
-    InternalKey limit(MakeKey(2 * fnum + 1), 1, kTypeDeletion);
-    vedit.AddFile(2, fnum++, 1 /* file size */, start, limit);
-    vset.LogAndApply(&vedit, &mu);
-  }
-  uint64_t stop_micros = env->NowMicros();
-  unsigned int us = stop_micros - start_micros;
-  char buf[16];
-  std::snprintf(buf, sizeof(buf), "%d", num_base_files);
-  std::fprintf(stderr,
-               "BM_LogAndApply/%-6s   %8" PRIu64
-               " iters : %9u us (%7.0f us / iter)\n",
-               buf, state.iterations(), us, ((float)us) / state.iterations());
-}
-
-BENCHMARK(BM_LogAndApply)->Arg(1)->Arg(100)->Arg(10000)->Arg(100000);
 }  // namespace leveldb
 
 int main(int argc, char** argv) {
   testing::InitGoogleTest(&argc, argv);
-  benchmark::RunSpecifiedBenchmarks();
   return RUN_ALL_TESTS();
 }