---
title: "sys.dm_pdw_wait_stats (Transact-SQL) | Microsoft Docs"
ms.custom: ""
ms.date: "03/14/2017"
ms.prod: sql
ms.technology: data-warehouse
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dev_langs: 
  - "TSQL"
ms.assetid: cfb8d905-c34f-44de-9574-dde81e170916
author: ronortloff
ms.author: rortloff
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---
# sys.dm_pdw_wait_stats (Transact-SQL)
[!INCLUDE[tsql-appliesto-xxxxxx-xxxx-asdw-pdw-md](../../includes/tsql-appliesto-xxxxxx-xxxx-asdw-pdw-md.md)]

  Holds information related to the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] OS state related to instances running on the different nodes. For a list of waits types and their description, see [sys.dm_os_wait_stats](https://msdn.microsoft.com/library/ms179984\(v=sql.120\).aspx).  
  
|Column Name|Data Type|Description|Range|  
|-----------------|---------------|-----------------|-----------|  
|**pdw_node_id**|**int**|ID of the node this entry refers to.||  
|**wait_name**|**nvarchar(255)**|Name of the wait type.||  
|**max_wait_time**|**bigint**|Maximum wait time of this wait type.||  
|**request_count**|**bigint**|Number of waits of this wait type outstanding.||  
|**signal_time**|**bigint**|Difference between the time that the waiting thread was signaled and when it started running.||  
|**completed_count**|**bigint**|Total number of waits of this type completed since the last server restart.||  
|**wait_time**|**bigint**|Total wait time for this wait type in millisecons. Inclusive of signal_time.||  
  
## See Also  
 [SQL Data Warehouse and Parallel Data Warehouse Dynamic Management Views (Transact-SQL)](../../relational-databases/system-dynamic-management-views/sql-and-parallel-data-warehouse-dynamic-management-views.md)   
 [sys.dm_pdw_waits (Transact-SQL)](../../relational-databases/system-dynamic-management-views/sys-dm-pdw-waits-transact-sql.md)