rocksdb/util/perf_context.cc

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// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#include <sstream>
#include "util/perf_context_imp.h"
namespace rocksdb {
#if defined(NPERF_CONTEXT) || defined(IOS_CROSS_COMPILE)
// This is a dummy variable since some place references it
PerfContext perf_context;
#else
__thread PerfContext perf_context;
#endif
void PerfContext::Reset() {
#if !defined(NPERF_CONTEXT) && !defined(IOS_CROSS_COMPILE)
user_key_comparison_count = 0;
block_cache_hit_count = 0;
block_read_count = 0;
block_read_byte = 0;
block_read_time = 0;
block_checksum_time = 0;
block_decompress_time = 0;
internal_key_skipped_count = 0;
internal_delete_skipped_count = 0;
write_wal_time = 0;
get_snapshot_time = 0;
get_from_memtable_time = 0;
get_from_memtable_count = 0;
get_post_process_time = 0;
get_from_output_files_time = 0;
seek_on_memtable_time = 0;
seek_on_memtable_count = 0;
seek_child_seek_time = 0;
seek_child_seek_count = 0;
seek_min_heap_time = 0;
seek_internal_seek_time = 0;
find_next_user_entry_time = 0;
write_pre_and_post_process_time = 0;
write_memtable_time = 0;
write_delay_time = 0;
db_mutex_lock_nanos = 0;
db_condition_wait_nanos = 0;
merge_operator_time_nanos = 0;
#endif
}
#define OUTPUT(counter) #counter << " = " << counter << ", "
std::string PerfContext::ToString() const {
#if defined(NPERF_CONTEXT) || defined(IOS_CROSS_COMPILE)
return "";
#else
std::ostringstream ss;
ss << OUTPUT(user_key_comparison_count) << OUTPUT(block_cache_hit_count)
<< OUTPUT(block_read_count) << OUTPUT(block_read_byte)
<< OUTPUT(block_read_time) << OUTPUT(block_checksum_time)
<< OUTPUT(block_decompress_time) << OUTPUT(internal_key_skipped_count)
<< OUTPUT(internal_delete_skipped_count) << OUTPUT(write_wal_time)
<< OUTPUT(get_snapshot_time) << OUTPUT(get_from_memtable_time)
<< OUTPUT(get_from_memtable_count) << OUTPUT(get_post_process_time)
<< OUTPUT(get_from_output_files_time) << OUTPUT(seek_on_memtable_time)
<< OUTPUT(seek_on_memtable_count) << OUTPUT(seek_child_seek_time)
<< OUTPUT(seek_child_seek_count) << OUTPUT(seek_min_heap_time)
<< OUTPUT(seek_internal_seek_time) << OUTPUT(find_next_user_entry_time)
<< OUTPUT(write_pre_and_post_process_time) << OUTPUT(write_memtable_time)
<< OUTPUT(db_mutex_lock_nanos) << OUTPUT(db_condition_wait_nanos)
<< OUTPUT(merge_operator_time_nanos) << OUTPUT(write_delay_time);
return ss.str();
#endif
}
}