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Improve (or cache) Prefix Utilization calculation #6471

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opened 2025-12-29 19:41:06 +01:00 by adam · 1 comment
adam commented 2025-12-29 19:41:06 +01:00
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Originally created by @lamoni on GitHub (May 10, 2022).

NetBox version

v3.1.5

Feature type

Change to existing functionality

Proposed functionality

Had some complaints about the IPAM pages (specifically Prefixes) taking a long time to load.

I realized that if we hide the Utilization column, the page takes ~500ms to load. If we show the Utilization column, it takes ~8 seconds to load that same page. For the 1000 entries, without Utilization column, it takes about 2.5 seconds to load, and with Utilization column it can take up to 20 - 25 seconds.

Can we consider caching the Utilization? Our immediate solution to this is to just hide the Utilization field, but given we should have good ways to invalidate a Utilization cache on CUD, might be something to consider.

Use case

Improve the time it takes to load Prefixes / IPAM page. We've had complaints about how long IPAM page takes too load, and realized it was due to the Utilization column being shown/calculated.

Database changes

Not sure

External dependencies

No response

Originally created by @lamoni on GitHub (May 10, 2022). ### NetBox version v3.1.5 ### Feature type Change to existing functionality ### Proposed functionality Had some complaints about the IPAM pages (specifically Prefixes) taking a long time to load. I realized that if we hide the Utilization column, the page takes ~500ms to load. If we show the Utilization column, it takes ~8 seconds to load that same page. For the 1000 entries, without Utilization column, it takes about 2.5 seconds to load, and with Utilization column it can take up to 20 - 25 seconds. Can we consider caching the Utilization? Our immediate solution to this is to just hide the Utilization field, but given we should have good ways to invalidate a Utilization cache on CUD, might be something to consider. ### Use case Improve the time it takes to load Prefixes / IPAM page. We've had complaints about how long IPAM page takes too load, and realized it was due to the Utilization column being shown/calculated. ### Database changes Not sure ### External dependencies _No response_
adam added the type: feature label 2025-12-29 19:41:06 +01:00
adam closed this issue 2025-12-29 19:41:06 +01:00
adam commented 2025-12-29 19:41:06 +01:00
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@jeremystretch commented on GitHub (May 11, 2022):

Thank you for submitting this issue, however it appears that this topic has already been raised. Please see issue #7845 for further discussion.

@jeremystretch commented on GitHub (May 11, 2022): Thank you for submitting this issue, however it appears that this topic has already been raised. Please see issue #7845 for further discussion.
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Reference: starred/netbox#6471
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