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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "buffer_stats.h"
#include <cassert>
namespace vespalib::datastore {
BufferStats::BufferStats()
: _alloc_entries(0),
_used_entries(0),
_hold_entries(0),
_dead_entries(0),
_extra_used_bytes(0),
_extra_hold_bytes(0)
{
}
void
BufferStats::add_to_mem_stats(size_t entry_size, MemoryStats& stats) const
{
size_t extra_used = extra_used_bytes();
stats._alloc_entries += capacity();
stats._used_entries += size();
stats._dead_entries += dead_entries();
stats._hold_entries += hold_entries();
stats._allocBytes += (capacity() * entry_size) + extra_used;
stats._usedBytes += (size() * entry_size) + extra_used;
stats._deadBytes += dead_entries() * entry_size;
stats._holdBytes += (hold_entries() * entry_size) + extra_hold_bytes();
}
InternalBufferStats::InternalBufferStats()
: BufferStats()
{
}
void
InternalBufferStats::clear()
{
_alloc_entries.store(0, std::memory_order_relaxed);
_used_entries.store(0, std::memory_order_relaxed);
_hold_entries.store(0, std::memory_order_relaxed);
_dead_entries.store(0, std::memory_order_relaxed);
_extra_used_bytes.store(0, std::memory_order_relaxed);
_extra_hold_bytes.store(0, std::memory_order_relaxed);
}
void
InternalBufferStats::dec_hold_entries(size_t value)
{
EntryCount elems = hold_entries();
assert(elems >= value);
_hold_entries.store(elems - value, std::memory_order_relaxed);
}
}
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