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[fix](doc) spell errors fixes query profile docs (#29096)
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Nitin-Kashyap authored Dec 27, 2023
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8 changes: 4 additions & 4 deletions docs/en/docs/admin-manual/query-profile.md
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# Statistics of query execution

This document focuses on introducing the **Running Profile** which recorded runtime status of Doris in query execution. Using these statistical information, we can understand the execution of frgment to become a expert of Doris's **debugging and tuning**.
This document focuses on introducing the **Running Profile** which recorded runtime status of Doris in query execution. Using these statistical information, we can understand the execution of fragment to become a expert of Doris's **debugging and tuning**.

You can also refer to following statements to view profile in command line:

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#### `BlockMgr`
- BlocksCreated: Number of Block be created by BlockMgr
- BlocksRecycled: Number of Block be recycled by BlockMgr
- BytesWritten: How many bytes be writen to spill to disk
- BytesWritten: How many bytes be written to spill to disk
- MaxBlockSize: Max size of one Block
- TotalReadBlockTime: Total time read block from disk

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- HTResizeTime: Time spent in resizing hashtable
- HTResize: Number of times hashtable resizes
- HashBuckets: Number of buckets in hashtable
- HashBucketsWithDuplicate: Number of buckets with duplicatenode in hashtable
- HashBucketsWithDuplicate: Number of buckets with duplicate node in hashtable
- HashCollisions: Number of hash conflicts generated
- HashDuplicateNodes: Number of duplicate nodes with the same buckets in hashtable
- HashFailedProbe: Number of failed probe operations
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- RowsReturnedRate: 6.979K /sec # RowsReturned/ActiveTime
- TabletCount: 20 # The number of Tablets involved in this ScanNode.
- TotalReadThroughput: 74.70 KB/sec # BytesRead divided by the total time spent in this node (from Open to Close). For IO bounded queries, this should be very close to the total throughput of all the disks
- ScannerBatchWaitTime: 426.886us # To count the time the transfer thread waits for the scaner thread to return rowbatch. In pipeline, this value is always 0.
- ScannerBatchWaitTime: 426.886us # To count the time the transfer thread waits for the scanner thread to return rowbatch. In pipeline, this value is always 0.
- ScannerWorkerWaitTime: 17.745us # To count the time that the scanner thread waits for the available worker threads in the thread pool.
OlapScanner:
- BlockConvertTime: 8.941us # The time it takes to convert a vectorized Block into a RowBlock with a row structure. The vectorized Block is VectorizedRowBatch in V1 and RowBlockV2 in V2.
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2 changes: 1 addition & 1 deletion docs/zh-CN/docs/admin-manual/query-profile.md
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Expand Up @@ -209,7 +209,7 @@ OLAP_SCAN_NODE (id=0):(Active: 1.2ms, % non-child: 0.00%)
- RowsReturnedRate: 6.979K /sec # RowsReturned/ActiveTime
- TabletCount : 20 # 该 ScanNode 涉及的 Tablet 数量。
- TotalReadThroughput: 74.70 KB/sec # BytesRead除以该节点运行的总时间(从Open到Close),对于IO受限的查询,接近磁盘的总吞吐量。
- ScannerBatchWaitTime: 426.886us # 用于统计transfer 线程等待scaner 线程返回rowbatch的时间。在Pipeline调度中,此值无意义。
- ScannerBatchWaitTime: 426.886us # 用于统计transfer 线程等待scanner 线程返回rowbatch的时间。在Pipeline调度中,此值无意义。
- ScannerWorkerWaitTime: 17.745us # 用于统计scanner thread 等待线程池中可用工作线程的时间。
OlapScanner:
- BlockConvertTime: 8.941us # 将向量化Block转换为行结构的 RowBlock 的耗时。向量化 Block 在 V1 中为 VectorizedRowBatch,V2中为 RowBlockV2。
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