rocksdb/monitoring/iostats_context.cc
git-hulk cdb6334e68 MOD: trim last space and comma in perf context and iostat context ToString()
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5755

Differential Revision: D17165190

Pulled By: riversand963

fbshipit-source-id: a3a4633961bfe019bf360f97a4c4d36464e7fa0b
2019-09-03 12:27:17 -07:00

63 lines
1.7 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);
std::string str = ss.str();
str.erase(str.find_last_not_of(", ") + 1);
return str;
}
} // namespace rocksdb