Opened 5 months ago

Closed 5 months ago

#35576 closed Cleanup/optimization (invalid)

Django too slow on first request

Reported by: Sridhar Owned by:
Component: Uncategorized Version: 2.2
Severity: Normal Keywords: Django, Lambda
Cc: Sridhar Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Sridhar)

We have deployed our Django app on lambda, the first request always takes 5-6 seconds excluding lambda cold start times.

My Observations:

  • get_app_list and reverse functions take too long.
  • The reverse function to prepare and match uri takes O(n).
  • Django adds two URLs for every model we register, so this wait time increases as we add models or write the Rest APIs.

I am attaching the Cprofile results below. Let me know if there are any ways to optimize this.

Attachments (1)

Screenshot from 2024-07-05 10-13-16.png​ (197.3 KB ) - added by Sridhar 5 months ago.

Download all attachments as: .zip

Change History (4)

by Sridhar, 5 months ago

Attachment: Screenshot from 2024-07-05 10-13-16.png​ added

comment:1 by Sridhar, 5 months ago

Description: modified (diff)

comment:2 by Sridhar, 5 months ago

Description: modified (diff)

comment:3 by Mariusz Felisiak, 5 months ago

Resolution: → invalid
Status: new → closed

Thanks for this ticket, however, Django 2.2 is not supported and we've made a ton of improvements and optimizations since then. To submit a valid ticket you have to propose a concrete optimization targeted to the current main branch.

As a side note, you should ask for help on [support channels ​https://forum.djangoproject.com/]. As for me, deploying a full Django project on lambdas doesn't sound like the best idea.

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