THPDFImageDecodeConcurrencyInfo

Reports live and cumulative loaded-image decode coordination state

字段

ShardCount 是相互独立加锁的缓存元数据分片数
ActiveFlightCount 是拥有 owner 或存在未释放等待者的 key 数
ActiveDecodeCount 是当前正在运行的 owner 解码数
PeakConcurrentDecodeCount 是观察到的并发 owner 解码数的最大值
OwnerDecodeCount 统计被选为执行解码的调用方数
SingleflightWaitCount 统计等待已有 key owner 的调用方数
CompletedDecodeCount counts successful owner decodes
FailedDecodeCount counts failed owner decodes
HandleAcquisitionCount 统计获取不可变句柄的缓存命中、解码 owner 和 singleflight 等待者数
BitmapCopyCount counts compatibility bitmap materialisations requested through cached TBitmap APIs
BitmapCopiedBytes reports their cumulative decoded byte weight