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7015fd81c4
Summary: MyRocks need a mechanism to track read outliers. We need to expose this stat. Test Plan: None Reviewers: sdong CC: leveldb Task ID: #7152512 Blame Rev:
46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#include <sstream>
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#include "rocksdb/env.h"
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#include "util/iostats_context_imp.h"
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namespace rocksdb {
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#ifndef IOS_CROSS_COMPILE
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__thread IOStatsContext iostats_context;
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#endif // IOS_CROSS_COMPILE
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void IOStatsContext::Reset() {
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thread_pool_id = Env::Priority::TOTAL;
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bytes_read = 0;
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bytes_written = 0;
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open_nanos = 0;
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allocate_nanos = 0;
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write_nanos = 0;
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read_nanos = 0;
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range_sync_nanos = 0;
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logger_nanos = 0;
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}
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#define OUTPUT(counter) #counter << " = " << counter << ", "
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std::string IOStatsContext::ToString() const {
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std::ostringstream ss;
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ss << OUTPUT(thread_pool_id)
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<< OUTPUT(bytes_read)
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<< OUTPUT(bytes_written)
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<< OUTPUT(open_nanos)
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<< OUTPUT(allocate_nanos)
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<< OUTPUT(write_nanos)
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<< OUTPUT(read_nanos)
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<< OUTPUT(range_sync_nanos)
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<< OUTPUT(logger_nanos);
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return ss.str();
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}
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} // namespace rocksdb
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