APIM API - CPU and Memory Utilization

krupa gundraju 0

Hi Team,

Is it possible to know particular API CPU and memory utilization in APIM. If so could you please let me know if there are any references?

Thanks

Krupa G

Loknathsatyasaivarma Mahali 170 Reputation points Microsoft Vendor

2025-01-29T12:18:51.4766667+00:00

Hello @krupa gundraju,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

Yes, it is possible to know the CPU and memory utilization of a particular API in APIM. You can use the Azure Monitor to monitor the performance of your APIs. Azure Monitor provides a set of tools to monitor and analyze the performance of your APIs, including CPU and memory utilization.

For detailed information please have a look on the below mention thread it will help you in better understanding and solve your issue.
https://learn.microsoft.com/en-us/answers/questions/883194/how-to-find-api-cpu-and-memory-utilization-in-azur

If you have further queries or concerns, please feel free to reach out to us.
Loknathsatyasaivarma Mahali 170 Reputation points Microsoft Vendor

2025-01-30T17:20:36.21+00:00

Hello @krupa gundraju,
Greeting for the day.

This is a friendly follow-up to check if the information provided above helped you understand the issue better and addressed your concerns. If you have any further questions or concerns, please feel free to reach out to us.
Loknathsatyasaivarma Mahali 170 Reputation points Microsoft Vendor

2025-02-03T05:25:05.9+00:00

Hello @krupa gundraju,

If you found the answer provided by @Stanislav Zhelyazkov, helpful. Please click Accept Answer and Yes for the provided answer. This will help other community members with similar issues find the solution more easily.

1 answer

Stanislav Zhelyazkov 25,686 Reputation points MVP

2025-01-29T10:11:41.0933333+00:00

Hi,

There is no option to monitor the CPU or Memory of API Management service. Suggestion is to use capacity metric for monitoring the usage.

Update:

ok let me step back. If you deploy Developer, Basic, Standard or Premium SKU those are classic tiers. Even if you see platform version stv2. Platform version is different from the SKU. The classic SKUs have only Capacity metric. CPU and Memory metrics are irrelevant for those classic SKUs and will not show any results. If you deploy Basic v2 or Standard v2 (currently there is no Premium v) SKUs you have CPU and Memory metrics. In those SKUs they will show results and Capacity is irrelevant for those SKUs and will show 0. None of the metrics Capacity, CPU or Memory provides information per API no matter the SKU chosen. You can check Requests to drill down on number of requests per APIs.

Please "Accept the answer" if the information helped you. This will help us and others in the community as well.
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krupa gundraju 0 Reputation points

2025-01-29T11:00:01.4166667+00:00

Hi,

I already have this document but can see for stv2 it always shows zero and using KQL query also it is not working and throwing error.

One more thing can't we monitor individual API CPU and memory usage in any way?

Thanks

Krupa G

Stanislav Zhelyazkov 25,686 Reputation points MVP

2025-01-29T11:12:55.9266667+00:00

It should work for platform version stv2. If you are having only zeros you are most likely not generating any load. Make sure that aggregation is set to Avg when viewing it. If you refer that you are sending metrics to Log Analytics - Capacity metrics should also be sent and it is available for viewing data via kql query. CPU and memory is not available at all as metrics. You can monitor Requests to see which API how many requests are generating.

krupa gundraju 0 Reputation points

2025-01-29T11:56:31.5333333+00:00

Hi,

There is a lot of load , capacity metrics are fine but CPU Percentage of Gateway and Memory Percentage of Gateway is zero always.

Reg KQL queries I followed https://learn.microsoft.com/en-us/answers/questions/1692682/kql-query-to-check-cpu-utilization-and-memory-util

it says table doesn't exists.

Please suggest how it works

Thanks

Krupa G

Stanislav Zhelyazkov 25,686 Reputation points MVP

2025-01-29T12:30:48.64+00:00

ok let me step back. If you deploy Developer, Basic, Standard or Premium SKU those are classic tiers. Even if you see platform version stv2. Platform version is different from the SKU. The classic SKUs have only Capacity metric. CPU and Memory metrics are irrelevant for those classic SKUs and will not show any results. If you deploy Basic v2 or Standard v2 (currently there is no Premium v) SKUs you have CPU and Memory metrics. In those SKUs they will show results and Capacity is irrelevant for those SKUs and will show 0. None of the metrics Capacity, CPU or Memory provides information per API no matter the SKU chosen. You can check Requests to drill down on number of requests per APIs.
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