rocksdb/monitoring/iostats_context.cc
Siying Dong c319792059 Directly refernce perf_context internally.
Summary:
After 7f6c02dda1, the same get_perf_context() is called both of internally and externally. However, I found internally this is not got inlined. I don't know why this is the case, but directly referencing perf_context is the logical way to do.
Closes https://github.com/facebook/rocksdb/pull/2892

Differential Revision: D5843789

Pulled By: siying

fbshipit-source-id: b49777d8809f35847699291bb7f8ea2754c3af49
2017-09-15 17:15:10 -07:00

61 lines
1.6 KiB
C++

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include <sstream>
#include "monitoring/iostats_context_imp.h"
#include "rocksdb/env.h"
namespace rocksdb {
#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
__thread IOStatsContext iostats_context;
#endif
IOStatsContext* get_iostats_context() {
#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
return &iostats_context;
#else
return nullptr;
#endif
}
void IOStatsContext::Reset() {
thread_pool_id = Env::Priority::TOTAL;
bytes_read = 0;
bytes_written = 0;
open_nanos = 0;
allocate_nanos = 0;
write_nanos = 0;
read_nanos = 0;
range_sync_nanos = 0;
prepare_write_nanos = 0;
fsync_nanos = 0;
logger_nanos = 0;
}
#define IOSTATS_CONTEXT_OUTPUT(counter) \
if (!exclude_zero_counters || counter > 0) { \
ss << #counter << " = " << counter << ", "; \
}
std::string IOStatsContext::ToString(bool exclude_zero_counters) const {
std::ostringstream ss;
IOSTATS_CONTEXT_OUTPUT(thread_pool_id);
IOSTATS_CONTEXT_OUTPUT(bytes_read);
IOSTATS_CONTEXT_OUTPUT(bytes_written);
IOSTATS_CONTEXT_OUTPUT(open_nanos);
IOSTATS_CONTEXT_OUTPUT(allocate_nanos);
IOSTATS_CONTEXT_OUTPUT(write_nanos);
IOSTATS_CONTEXT_OUTPUT(read_nanos);
IOSTATS_CONTEXT_OUTPUT(range_sync_nanos);
IOSTATS_CONTEXT_OUTPUT(fsync_nanos);
IOSTATS_CONTEXT_OUTPUT(prepare_write_nanos);
IOSTATS_CONTEXT_OUTPUT(logger_nanos);
return ss.str();
}
} // namespace rocksdb