1 files changed, 0 insertions, 149 deletions
diff --git a/test/perf/linux/getdents_benchmark.cc b/test/perf/linux/getdents_benchmark.cc
deleted file mode 100644
index afc599ad2..000000000
--- a/test/perf/linux/getdents_benchmark.cc
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright 2020 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "gtest/gtest.h"
-#include "benchmark/benchmark.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/fs_util.h"
-#include "test/util/temp_path.h"
-#include "test/util/test_util.h"
-
-#ifndef SYS_getdents64
-#if defined(__x86_64__)
-#define SYS_getdents64 217
-#elif defined(__aarch64__)
-#define SYS_getdents64 217
-#else
-#error "Unknown architecture"
-#endif
-#endif  // SYS_getdents64
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-constexpr int kBufferSize = 16384;
-
-PosixErrorOr<TempPath> CreateDirectory(int count,
-                                       std::vector<std::string>* files) {
-  ASSIGN_OR_RETURN_ERRNO(TempPath dir, TempPath::CreateDir());
-
-  ASSIGN_OR_RETURN_ERRNO(FileDescriptor dfd,
-                         Open(dir.path(), O_RDONLY | O_DIRECTORY));
-
-  for (int i = 0; i < count; i++) {
-    auto file = NewTempRelPath();
-    auto res = MknodAt(dfd, file, S_IFREG | 0644, 0);
-    RETURN_IF_ERRNO(res);
-    files->push_back(file);
-  }
-
-  return std::move(dir);
-}
-
-PosixError CleanupDirectory(const TempPath& dir,
-                            std::vector<std::string>* files) {
-  ASSIGN_OR_RETURN_ERRNO(FileDescriptor dfd,
-                         Open(dir.path(), O_RDONLY | O_DIRECTORY));
-
-  for (auto it = files->begin(); it != files->end(); ++it) {
-    auto res = UnlinkAt(dfd, *it, 0);
-    RETURN_IF_ERRNO(res);
-  }
-  return NoError();
-}
-
-// Creates a directory containing `files` files, and reads all the directory
-// entries from the directory using a single FD.
-void BM_GetdentsSameFD(benchmark::State& state) {
-  // Create directory with given files.
-  const int count = state.range(0);
-
-  // Keep a vector of all of the file TempPaths that is destroyed before dir.
-  //
-  // Normally, we'd simply allow dir to recursively clean up the contained
-  // files, but that recursive cleanup uses getdents, which may be very slow in
-  // extreme benchmarks.
-  TempPath dir;
-  std::vector<std::string> files;
-  dir = ASSERT_NO_ERRNO_AND_VALUE(CreateDirectory(count, &files));
-
-  FileDescriptor fd =
-      ASSERT_NO_ERRNO_AND_VALUE(Open(dir.path(), O_RDONLY | O_DIRECTORY));
-  char buffer[kBufferSize];
-
-  // We read all directory entries on each iteration, but report this as a
-  // "batch" iteration so that reported times are per file.
-  while (state.KeepRunningBatch(count)) {
-    ASSERT_THAT(lseek(fd.get(), 0, SEEK_SET), SyscallSucceeds());
-
-    int ret;
-    do {
-      ASSERT_THAT(ret = syscall(SYS_getdents64, fd.get(), buffer, kBufferSize),
-                  SyscallSucceeds());
-    } while (ret > 0);
-  }
-
-  ASSERT_NO_ERRNO(CleanupDirectory(dir, &files));
-
-  state.SetItemsProcessed(state.iterations());
-}
-
-BENCHMARK(BM_GetdentsSameFD)->Range(1, 1 << 16)->UseRealTime();
-
-// Creates a directory containing `files` files, and reads all the directory
-// entries from the directory using a new FD each time.
-void BM_GetdentsNewFD(benchmark::State& state) {
-  // Create directory with given files.
-  const int count = state.range(0);
-
-  // Keep a vector of all of the file TempPaths that is destroyed before dir.
-  //
-  // Normally, we'd simply allow dir to recursively clean up the contained
-  // files, but that recursive cleanup uses getdents, which may be very slow in
-  // extreme benchmarks.
-  TempPath dir;
-  std::vector<std::string> files;
-  dir = ASSERT_NO_ERRNO_AND_VALUE(CreateDirectory(count, &files));
-  char buffer[kBufferSize];
-
-  // We read all directory entries on each iteration, but report this as a
-  // "batch" iteration so that reported times are per file.
-  while (state.KeepRunningBatch(count)) {
-    FileDescriptor fd =
-        ASSERT_NO_ERRNO_AND_VALUE(Open(dir.path(), O_RDONLY | O_DIRECTORY));
-
-    int ret;
-    do {
-      ASSERT_THAT(ret = syscall(SYS_getdents64, fd.get(), buffer, kBufferSize),
-                  SyscallSucceeds());
-    } while (ret > 0);
-  }
-
-  ASSERT_NO_ERRNO(CleanupDirectory(dir, &files));
-
-  state.SetItemsProcessed(state.iterations());
-}
-
-BENCHMARK(BM_GetdentsNewFD)->Range(1, 1 << 12)->UseRealTime();
-
-}  // namespace
-
-}  // namespace testing
-}  // namespace gvisor