Improve autocompletion performance

[bebound]

Description

Original issue: #9157
CLI's autocompletion is not as fast as other tools, I create this issue to track the progress.
If you find any command's completion is slow, please report it here and attach the output of {your_command} --debug and az -v.

TODO

• {Core} Disable aladdin recommendation in autocomplete mode #25145
• {Core} Improve autocomplete performance by preventing loading all modules #24765
• Improve embedded python speed #25106
• Improve module init speed such as acs, network
• Improve aaz module logic, it does not need to import lots of packages when read params.
• Improve speed of az s<tab>. Don't need to load all modules, read from commandindex.json

Result

Here is the data after applying disable aladdin in 2.45 and enhance module loading in 2.49:

	az account	az storage	az keyvault	az vm	az aks
Before (s)	0.646	0.720	0.695	0.730	0.696
Disable aladdin (s)	0.337	0.426	0.352	0.552	0.597
Enhance loading (s)	0.268	0.340	0.285	0.532	0.503
Percentage (%)	41.5	47.2	41.0	72.9	72.3

	az account s	az storage s	az keyvault s	az vm s	az aks s
Before (s)	2.553	2.483	2.450	2.541	2.519
Disable aladdin (s)	2.364	2.353	2.398	2.355	2.376
Enhance loading (s)	0.269	0.301	0.282	0.422	0.280
Percentage (%)	10.5	12.1	11.5	16.6	11.1

[yonzhan]

Improve autocompletion performance

[BradAF]

I am experiencing this issue, but I'm not sure how to capture the delay speed specifically of the tab completion, rather than running the command. To be clear, the command itself runs reasonably fast, it's the tab-completion that is very slow.

Example: az account show runs in under a second, az acc<tab> takes 2-15 seconds to bring up az account.

Output of az -v:

azure-cli 2.44.1

core 2.44.1
telemetry 1.0.8

Extensions:
connectedk8s 1.2.8
k8s-extension 1.2.0
azure-devops 0.22.0
ml 2.12.1

Dependencies:
msal 1.20.0
azure-mgmt-resource 21.1.0b1

Python location '/usr/local/Cellar/azure-cli/2.44.1/libexec/bin/python'
Extensions directory '/Users/XXXX/.azure/cliextensions'

Python (Darwin) 3.10.9 (main, Dec 15 2022, 18:25:35) [Clang 14.0.0 (clang-1400.0.29.202)]

Legal docs and information: aka.ms/AzureCliLegal

[bebound]

@BradAF Thank for the report, it should be fixed by #24765