Maximum QPS for Azure PostgreSQL Flexible Server

Question

Maximum QPS for Azure PostgreSQL Flexible Server

Sai 0

Is there a dependency between the maximum queries per second that Azure PostgreSQL Flexible Server can support and the compute SKU of the flexible server?If not what are the factors affecting maximum queries per second that azure postgres flexible server can support?

Prasad Chaganti 80 Reputation points Microsoft External Staff

2025-03-12T00:42:11.47+00:00

Hi Sai,

There is a dependency between the maximum queries per second that Azure PostgreSQL Flexible Server can support and the compute SKU of the flexible server. The compute SKU, which includes the number of vCores and the type of virtual machine (VM) series, directly impacts the performance and capacity of the server. For example, higher vCore counts and more powerful VM series (such as the Memory Optimized series) can handle more queries per second compared to lower vCore counts and less powerful VM series

Other factors affecting the maximum queries per second that Azure PostgreSQL Flexible Server can support include:

1.Memory and Storage: The amount of memory per vCore and the storage size can influence the performance. More memory allows for better caching and faster query processing, while larger storage can handle more data

2.Network Latency: The network configuration and latency between the client and the server can impact the query performance. Lower latency results in faster query execution

3.Database Configuration: The configuration settings of the PostgreSQL database, such as connection pooling, indexing, and query optimization, play a significant role in determining the query performance

4.Workload Characteristics: The nature of the workload, including the complexity of queries, the size of the data being processed, and the concurrency of the queries, can affect the maximum queries per second

I hope this information helps. Please do let us know if you have any further queries.

Your answer

Prasad Chaganti 80 Reputation points Microsoft External Staff

2025-03-12T00:42:11.47+00:00

Hi Sai,

There is a dependency between the maximum queries per second that Azure PostgreSQL Flexible Server can support and the compute SKU of the flexible server. The compute SKU, which includes the number of vCores and the type of virtual machine (VM) series, directly impacts the performance and capacity of the server. For example, higher vCore counts and more powerful VM series (such as the Memory Optimized series) can handle more queries per second compared to lower vCore counts and less powerful VM series

Other factors affecting the maximum queries per second that Azure PostgreSQL Flexible Server can support include:

1.Memory and Storage: The amount of memory per vCore and the storage size can influence the performance. More memory allows for better caching and faster query processing, while larger storage can handle more data

2.Network Latency: The network configuration and latency between the client and the server can impact the query performance. Lower latency results in faster query execution

3.Database Configuration: The configuration settings of the PostgreSQL database, such as connection pooling, indexing, and query optimization, play a significant role in determining the query performance

4.Workload Characteristics: The nature of the workload, including the complexity of queries, the size of the data being processed, and the concurrency of the queries, can affect the maximum queries per second

I hope this information helps. Please do let us know if you have any further queries.

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Maximum QPS for Azure PostgreSQL Flexible Server

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