Prestazioni di AWS Lambda: JavaScript vs Python vs Golang
Quale linguaggio utilizzare per AWS Lambda?
Indice
Possiamo scrivere una funzione lambda per il deployment su AWS in diversi linguaggi. Confrontiamo le prestazioni di (quasi vuote) funzioni scritte in JavaScript, Python e Golang…
TL;DR
In sintesi:
| Linguaggio | Durata Billed Warm-up | Durata Billed | Dimensione Memoria | Memoria Massima Utilizzata |
|---|---|---|---|---|
| Python | 197 ms | 2 ms | 128 MB | 32 MB |
| Python S3 | 516 ms | 35 ms | 128 MB | 77 MB |
| JavaScript | 2 ms | 2 ms | 128 MB | 63 MB |
| JavaScript S3 | 120 ms | 72 ms | 128 MB | 89 MB |
| Golang | 11 ms | 1 ms | 128 MB | 20 MB |
| Golang S3 | 30 ms | 29 ms | 128 MB | 38 MB |
- Il Python ha la durata di riscaldamento più lunga su 128 GB di RAM,
- JavaScript è il più lento complessivamente
- Golang è il migliore tra i tre ma non in modo significativo
Un’opzione interessante è accelerare la funzione lambda Python aumentando la memoria, e allo stesso tempo la CPU. Penso che ridurrà solo il tempo di riscaldamento. Le chiamate a S3 non diventeranno meno latenti.
Nel test sintetico numeri primi di AWS - il costo di esecuzione della lambda Python è lo stesso usando 128 MB e 512 MB di limite di RAM,
e le prestazioni della configurazione con 512 MB sono significativamente più veloci.
https://docs.aws.amazon.com/lambda/latest/operatorguide/computing-power.html
Cosa è AWS SAM
Stiamo utilizzando SAM per testare diverse funzioni lambda qui.
AWS SAM è un Serverless Application Model.
Il progetto AWS SAM include il modello AWS SAM e il codice della funzione. Il modello SAM descrive come deployare, eseguire e testare la funzione lambda, i permessi e altri parametri importanti per creare lo stack CloudFormation.
Per utilizzarlo abbiamo bisogno di aws cli e sam cli.
Installare AWS cli
Come fare: Installare AWS CLI nel documento Reinstall linux
Oppure sul sito di AWS: https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html
Installare SAM cli
In sostanza - Scaricare il file zip del SAM cli installer dal sito di AWS, decomprimere e installare
wget https://github.com/aws/aws-sam-cli/releases/latest/download/aws-sam-cli-linux-x86_64.zip
unzip aws-sam-cli-linux-x86_64.zip -d sam-installation
sudo ./sam-installation/install
# controllare che SAM sia installato
sam --version
Pulire i file dell’installer
rm -rf sam-installation
rm aws-sam-cli-linux-x86_64.zip
Creare le funzioni lambda
Eseguendo tre volte lo script
sam init
e selezionando ogni volta il template hello-world, ma diversi linguaggi, creiamo 3 applicazioni SAM
Funzione lambda basata su Python 3.12
l’output di sam init:
-----------------------
Generating application:
-----------------------
Name: t1-py
Runtime: python3.12
Architectures: x86_64
Dependency Manager: pip
Application Template: hello-world
Output Directory: .
Configuration file: t1-py/samconfig.toml
Next steps can be found in the README file at t1-py/README.md
Commands you can use next
=========================
[*] Create pipeline: cd t1-py && sam pipeline init --bootstrap
[*] Validate SAM template: cd t1-py && sam validate
[*] Test Function in the Cloud: cd t1-py && sam sync --stack-name {stack-name} --watch
Funzione lambda basata su JavaScript e nodejs20.x
l’output di sam init:
-----------------------
Generating application:
-----------------------
Name: t2-js
Runtime: nodejs20.x
Architectures: x86_64
Dependency Manager: npm
Application Template: hello-world
Output Directory: .
Configuration file: t2-js/samconfig.toml
Next steps can be found in the README file at t2-js/README.md
...
Funzione lambda basata su Golang (aws image al2023)
l’output di sam init:
-----------------------
Generating application:
-----------------------
Name: t3-go
Runtime: go (provided.al2023)
Architectures: x86_64
Dependency Manager: mod
Application Template: hello-world
Output Directory: .
Configuration file: t3-go/samconfig.toml
Next steps can be found in the README file at t3-go/README.md
Costruire, Testare, Deployare ed Eseguire - Funzione Lambda basata su Python
test localmente
sam build --use-container
l’output mostra alla fine:
Commands you can use next
=========================
[*] Validate SAM template: sam validate
[*] Invoke Function: sam local invoke
[*] Test Function in the Cloud: sam sync --stack-name {{stack-name}} --watch
[*] Deploy: sam deploy --guided
dopo aver eseguito tre volte
sam local invoke
l’output che vediamo:
REPORT RequestId: 3b36575a-629d-40ba-adb7-018bdb8cae63 Init Duration: 0.09 ms Duration: 46.95 ms Billed Duration: 47 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: e1233b8a-99c6-49d9-ab91-f02408a5ec6f Init Duration: 0.07 ms Duration: 44.56 ms Billed Duration: 45 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: 34772494-39ff-457d-a1c1-16cd5e177b42 Init Duration: 0.02 ms Duration: 26.35 ms Billed Duration: 27 ms Memory Size: 128 MB Max Memory Used: 128 MB
se aggiungiamo una chiamata di lettura da S3, l’output sarà diverso
...
REPORT RequestId: 158b806c-852d-4f6b-ab28-cdd6e0868fa1 Init Duration: 0.02 ms Duration: 675.64 ms Billed Duration: 676 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: d4cc689c-f944-49fa-9254-555266816b97 Init Duration: 0.79 ms Duration: 465.80 ms Billed Duration: 466 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: b8d30096-cd93-4787-84d7-e8f52d7e2e13 Init Duration: 0.02 ms Duration: 447.83 ms Billed Duration: 448 ms Memory Size: 128 MB Max Memory Used: 128 MB
Ok, ogni chiamata dura 1/2 sec, e la RAM utilizzata è 128 MB
test su AWS
sam build --use-container
sam deploy --guided
Il cli SAM chiederà il nome dello stack CloudFormation, quindi per la conferma, quindi deployerà la nostra funzione su AWS. L’ultima pagina dell’output di sam sarà qualcosa del genere
Previewing CloudFormation changeset before deployment
======================================================
Deploy this changeset? [y/N]: Y
2024-08-17 20:19:30 - Waiting for stack create/update to complete
CloudFormation events from stack operations (refresh every 5.0 seconds)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ResourceStatus ResourceType LogicalResourceId ResourceStatusReason
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CREATE_IN_PROGRESS AWS::CloudFormation::Stack t1-py User Initiated
CREATE_IN_PROGRESS AWS::IAM::Role HelloWorldFunctionRole -
CREATE_IN_PROGRESS AWS::IAM::Role HelloWorldFunctionRole Resource creation Initiated
CREATE_COMPLETE AWS::IAM::Role HelloWorldFunctionRole -
CREATE_IN_PROGRESS AWS::Lambda::Function HelloWorldFunction -
CREATE_IN_PROGRESS AWS::Lambda::Function HelloWorldFunction Resource creation Initiated
CREATE_COMPLETE AWS::Lambda::Function HelloWorldFunction -
CREATE_IN_PROGRESS AWS::ApiGateway::RestApi ServerlessRestApi -
CREATE_IN_PROGRESS AWS::ApiGateway::RestApi ServerlessRestApi Resource creation Initiated
CREATE_COMPLETE AWS::ApiGateway::RestApi ServerlessRestApi -
CREATE_IN_PROGRESS AWS::Lambda::Permission HelloWorldFunctionHelloWorldPermissionProd -
CREATE_IN_PROGRESS AWS::ApiGateway::Deployment ServerlessRestApiDeployment47fc2d5f9d -
CREATE_IN_PROGRESS AWS::Lambda::Permission HelloWorldFunctionHelloWorldPermissionProd Resource creation Initiated
CREATE_COMPLETE AWS::Lambda::Permission HelloWorldFunctionHelloWorldPermissionProd -
CREATE_IN_PROGRESS AWS::ApiGateway::Deployment ServerlessRestApiDeployment47fc2d5f9d Resource creation Initiated
CREATE_COMPLETE AWS::ApiGateway::Deployment ServerlessRestApiDeployment47fc2d5f9d -
CREATE_IN_PROGRESS AWS::ApiGateway::Stage ServerlessRestApiProdStage -
CREATE_IN_PROGRESS AWS::ApiGateway::Stage ServerlessRestApiProdStage Resource creation Initiated
CREATE_COMPLETE AWS::ApiGateway::Stage ServerlessRestApiProdStage -
CREATE_COMPLETE AWS::CloudFormation::Stack t1-py -
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CloudFormation outputs from deployed stack
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Outputs
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
...
Key HelloWorldApi
Description API Gateway endpoint URL for Prod stage for Hello World function
Value https://wq3w4d41j7.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
...-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vedi qui la chiave HelloWorldApi con la descrizione API Gateway endpoint URL for Prod stage for Hello World function? Ecco il nostro URL pubblico:
https://wq3w4d41j7.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
ma iniziamo prima il nostro listener dei log:
sam logs -n HelloWorldFunction --stack-name "t1-py" --tail
e mentre il listener dei log è in esecuzione, chiamiamo in un altro terminale:
curl https://wq3w4d41j7.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
curl https://wq3w4d41j7.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
curl https://wq3w4d41j7.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
output:
2024/08/18/[$LATEST]d86ecb94a39d44778f35bc2200b077a7 2024-08-18T00:46:22.468000 REPORT RequestId: 2e35fcf9-4d4b-4ced-962e-923adeddcbaa Duration: 199.56 ms Billed Duration: 200 ms Memory Size: 128 MB Max Memory Used: 56 MB
...break...
2024/08/18/[$LATEST]d86ecb94a39d44778f35bc2200b077a7 2024-08-18T00:46:22.909000 REPORT RequestId: dd200d9d-cf35-4813-a243-ca8cf7435908 Duration: 194.60 ms Billed Duration: 195 ms Memory Size: 128 MB Max Memory Used: 56 MB
...break...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:01.610000 REPORT RequestId: afae88d1-3873-40a3-8b82-caa7019ca45e Duration: 1.94 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB Init Duration: 117.62 ms
...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:03.292000 REPORT RequestId: d7011c87-e6a2-4d76-bb39-4c32b754b991 Duration: 1.71 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB
...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:06.905000 REPORT RequestId: 0eab1866-b11f-4a26-8234-be07f47ecb49 Duration: 1.62 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB
...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:12.696000 REPORT RequestId: f0cc5b4b-f3c3-49d5-9708-fce265581ed2 Duration: 1.51 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB
...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:13.202000 REPORT RequestId: 40367789-27c0-419b-8483-cf054978e9b6 Duration: 1.51 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB
...
2024/08/18/[$LATEST]661b5b35a7c54641adb72974b273b78a 2024-08-18T00:48:13.552000 REPORT RequestId: 6d166356-5a6c-44c7-b5dd-5c2808340b79 Duration: 1.38 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 32 MB
con chiamata a S3 - qui stiamo parlando
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:54:55.322000 REPORT RequestId: d97fd1cd-d9ef-4d16-adcb-514fa65ca6f8 Duration: 513.99 ms Billed Duration: 514 ms Memory Size: 128 MB Max Memory Used: 77 MB
...
a break
...
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:55:02.063000 REPORT RequestId: e6e6884d-d6b6-4dc7-aede-f3863f3b331d Duration: 519.35 ms Billed Duration: 520 ms Memory Size: 128 MB Max Memory Used: 77 MB
...
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:55:02.202000 REPORT RequestId: 91eeaca0-c983-4e99-9608-36948511bd27 Duration: 23.95 ms Billed Duration: 24 ms Memory Size: 128 MB Max Memory Used: 77 MB
...
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:55:02.662000 REPORT RequestId: d7035256-53f8-463c-93fd-f5de608f47a6 Duration: 33.55 ms Billed Duration: 34 ms Memory Size: 128 MB Max Memory Used: 77 MB
...
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:55:03.082000 REPORT RequestId: a2e338b3-f18e-4644-8f6d-2ab151421996 Duration: 21.50 ms Billed Duration: 22 ms Memory Size: 128 MB Max Memory Used: 77 MB
...
2024/08/18/[$LATEST]992dbfa1ec234d2aa1d9d6003de766de 2024-08-18T00:55:03.562000 REPORT RequestId: 111665a1-f43c-488b-bc02-cd203fef478f Duration: 42.58 ms Billed Duration: 43 ms Memory Size: 128 MB Max Memory Used: 77 MB
Dimensione della memoria: 77 MB e durata fatturabile ~35 ms… Durata di riscaldamento 1/2 sec
pulizia dello stack CloudFormation AWS
sam delete --stack-name "t1-py"
Costruire, Testare, Deployare ed Eseguire - Funzione Lambda basata su JavaScript
JS locale
costruire ed eseguire localmente
sam build
sam local invoke
produce
REPORT RequestId: 9e3c0a43-6432-4cc7-babf-f591773e5315 Init Duration: 0.05 ms Duration: 126.34 ms Billed Duration: 127 ms Memory Size: 128 MB Max Memory Used: 128 MB
REPORT RequestId: 2856e8f1-166f-4a90-a094-d575ef00ff69 Init Duration: 0.02 ms Duration: 43.73 ms Billed Duration: 44 ms Memory Size: 128 MB Max Memory Used: 128 MB
REPORT RequestId: f1156bd5-dd9f-4c1c-b65d-68c04df5a987 Init Duration: 0.02 ms Duration: 42.79 ms Billed Duration: 43 ms Memory Size: 128 MB Max Memory Used: 128 MB
durata delle chiamate a S3 locali:
REPORT RequestId: 06c4a5a0-6f1a-4e09-9518-cf706d08c319 Init Duration: 0.13 ms Duration: 280.33 ms Billed Duration: 281 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: 4393e8bd-c59b-42e5-83b5-1729d0fb4d8f Init Duration: 0.08 ms Duration: 270.42 ms Billed Duration: 271 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: 90979693-7245-4f88-9f6b-070be83f75df Init Duration: 0.05 ms Duration: 431.86 ms Billed Duration: 432 ms Memory Size: 128 MB Max Memory Used: 128 MB
JS su AWS
Deployare e concordare con ciò che SAM chiede e permettendo chiamate non autenticate alle nostre funzioni lambda
sam deploy --guided
# ora ascoltare i log
sam logs -n HelloWorldFunction --stack-name t2-js --tail
# o
sam logs -n HelloWorldS3Function --stack-name t2-js --tail
e dopo aver eseguito curl in un altro console, i log
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:38:38.831000 REPORT RequestId: 24e86600-e316-4678-81db-41eafff81aa0 Duration: 4.92 ms Billed Duration: 5 ms Memory Size: 128 MB Max Memory Used: 62 MB Init Duration: 139.82 ms
...
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:38:47.451000 REPORT RequestId: 0d269d7f-61f6-4b48-b3c2-6f83aaba5f45 Duration: 2.58 ms Billed Duration: 3 ms Memory Size: 128 MB Max Memory Used: 62 MB
...
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:38:58.622000 REPORT RequestId: f1bd0e5a-d1d0-4136-9b02-6fba4dcc9a70 Duration: 1.34 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 63 MB
...
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:38:59.089000 REPORT RequestId: baa791a7-4f9c-41be-b516-81213bc7a365 Duration: 1.44 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 63 MB
...
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:38:59.966000 REPORT RequestId: ea2a1515-1188-4a44-956f-91f2fc97491f Duration: 1.46 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 63 MB
...
2024/08/18/[$LATEST]fe2dcf2abd9041a0b90630c2c8aa0005 2024-08-18T01:39:00.428000 REPORT RequestId: 0f536ec5-26cb-42b9-beaa-045984b8c468 Duration: 1.45 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 63 MB
Bene. non molto tempo speso a fare niente. ma non si addormenta nemmeno.
Prestazioni della funzione lambda che legge da un bucket S3 in JavaScript
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:42:45.155000 REPORT RequestId: c4630419-4502-467c-9cda-c5087d6b2743 Duration: 1051.97 ms Billed Duration: 1052 ms Memory Size: 128 MB Max Memory Used: 88 MB Init Duration: 411.76 ms
...break...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:42:52.195000 REPORT RequestId: 4b881f2b-4b30-4890-afc2-b7299b6397b3 Duration: 259.87 ms Billed Duration: 260 ms Memory Size: 128 MB Max Memory Used: 89 MB
...break...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:42:58.455000 REPORT RequestId: 77f4d820-2f2e-4190-a1e3-bc4821ccdb9b Duration: 165.44 ms Billed Duration: 166 ms Memory Size: 128 MB Max Memory Used: 89 MB
...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:43:03.095000 REPORT RequestId: 41ce9fd8-aaf4-46c4-a827-0a45592041c0 Duration: 63.74 ms Billed Duration: 64 ms Memory Size: 128 MB Max Memory Used: 89 MB
...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:43:03.695000 REPORT RequestId: 9494f176-3818-4fb3-a581-857f1eb2df23 Duration: 73.16 ms Billed Duration: 74 ms Memory Size: 128 MB Max Memory Used: 89 MB
...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:43:04.315000 REPORT RequestId: 528c909f-4a08-415e-a713-e3d9e9e4d615 Duration: 87.44 ms Billed Duration: 88 ms Memory Size: 128 MB Max Memory Used: 89 MB
...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:43:04.835000 REPORT RequestId: 9b636429-56f5-4974-afe9-e53e786adb61 Duration: 55.62 ms Billed Duration: 56 ms Memory Size: 128 MB Max Memory Used: 89 MB
...
2024/08/18/[$LATEST]8e22ce6f54074c6098cdbf89ed0ca0b9 2024-08-18T01:43:05.415000 REPORT RequestId: d4c298df-b237-4605-894f-fde05fe0461a Duration: 69.88 ms Billed Duration: 70 ms Memory Size: 128 MB Max Memory Used: 89 MB
Pulizia AWS JS
eliminando…
sam delete --stack-name t2-js
Costruire, Testare, Deployare ed Eseguire - Funzione Lambda basata su Golang
Test locale della funzione Lambda Golang
Per essere precisi - fare chiamate di test, non eseguire test unitari.
Il comando sam build è all’interno del Makefile. Quindi stiamo eseguendo:
make
eseguire una singola funzione
sam local invoke HelloWorldFunction --event events/event.json
sam local invoke HelloWorldFunction --event events/event.json
sam local invoke HelloWorldFunction --event events/event.json
sam local invoke HelloWorldS3Function --event events/event.json
sam local invoke HelloWorldS3Function --event events/event.json
sam local invoke HelloWorldS3Function --event events/event.json
Opzione 2: ora avviare il server locale:
sam local start-api
l’output:
ora in un altro terminale:
curl http://localhost:3000/hello
curl http://localhost:3000/hello
curl http://localhost:3000/hello
curl http://localhost:3000/hellos3
curl http://localhost:3000/hellos3
curl http://localhost:3000/hellos3
l’output della chiamata semplice locale alla funzione lambda basata su Golang:
REPORT RequestId: 54cc3271-7f04-44a3-8d91-d5d69d2428ea Init Duration: 0.03 ms Duration: 2.24 ms Billed Duration: 3 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: c753bdf9-1af0-4b40-9516-5fb2ad96ba00 Duration: 0.29 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: edceb310-e6e9-4f0a-bd6e-58afd40e9b70 Duration: 0.28 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 128 MB
l’output della chiamata locale “s3” alla funzione lambda basata su Golang:
REPORT RequestId: 1556e298-a17a-4d45-9fdc-b7f62118c246 Init Duration: 0.06 ms Duration: 142.76 ms Billed Duration: 143 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: e4638fb4-52f4-4086-b673-c9de0f02d3f7 Duration: 86.75 ms Billed Duration: 87 ms Memory Size: 128 MB Max Memory Used: 128 MB
...
REPORT RequestId: b1bdcbf8-06f8-4605-a7da-d34f41198811 Duration: 105.07 ms Billed Duration: 106 ms Memory Size: 128 MB Max Memory Used: 128 MB
la durata di 1ms sembra buona, ma Dimensione della memoria: 128 MB? Perché? Dovrebbe essere come 12 MB? Probabilmente è il minimo che hanno.
Test AWS Golang Lambda
sam deploy --guided
avviare il listener dei log
sam logs -n HelloWorldFunction --stack-name t3-go --tail
e chiamare la funzione 3 volte:
curl https://k92zaa81w8.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
curl https://k92zaa81w8.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
curl https://k92zaa81w8.execute-api.ap-southeast-2.amazonaws.com/Prod/hello/
nei log vediamo:
2024/08/18/[$LATEST]1f5b2a65bda1433789d9281d02cf4622 2024-08-18T04:18:02.908000 REPORT RequestId: 358b5762-dad7-4380-a83f-e21349fae20b Duration: 11.71 ms Billed Duration: 70 ms Memory Size: 128 MB Max Memory Used: 20 MB Init Duration: 57.52 ms
...break...
2024/08/18/[$LATEST]1f5b2a65bda1433789d9281d02cf4622 2024-08-18T04:18:07.404000 REPORT RequestId: 3051d741-504a-49ae-95b3-077628b4b929 Duration: 0.99 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 20 MB
...break...
2024/08/18/[$LATEST]1f5b2a65bda1433789d9281d02cf4622 2024-08-18T04:18:11.923000 REPORT RequestId: 51c38ca9-920d-4f30-be75-a1a44538c9ee Duration: 1.02 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 20 MB
...
2024/08/18/[$LATEST]1f5b2a65bda1433789d9281d02cf4622 2024-08-18T04:18:12.486000 REPORT RequestId: 98727f66-f3f1-46ad-9a5a-55a6243609ba Duration: 0.96 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 20 MB
...
2024/08/18/[$LATEST]1f5b2a65bda1433789d9281d02cf4622 2024-08-18T04:18:13.015000 REPORT RequestId: 9d8bfb28-d4eb-4868-9af7-3b3946acc92c Duration: 0.98 ms Billed Duration: 1 ms Memory Size: 128 MB Max Memory Used: 20 MB
- La durata fatturabile è 2ms. Buona.
- Memoria massima utilizzata: 20 MB. Previsto
- Sembra che non cada in un sonno
Ora facciamo lo stesso per la funzione lambda che ha una chiamata a S3 all’interno
2024/08/18/[$LATEST]8bd6f2bea333485aad2cbf5166433cf5 2024-08-18T04:22:57.711000 REPORT RequestId: 9f09db3e-d9bc-45fe-9674-df133f0f1dc2 Duration: 28.08 ms Billed Duration: 29 ms Memory Size: 128 MB Max Memory Used: 37 MB
...
2024/08/18/[$LATEST]8bd6f2bea333485aad2cbf5166433cf5 2024-08-18T04:23:15.324000 REPORT RequestId: 4bc39553-6a42-4347-b322-6c80f24cdb01 Duration: 30.56 ms Billed Duration: 31 ms Memory Size: 128 MB Max Memory Used: 38 MB
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2024/08/18/[$LATEST]8bd6f2bea333485aad2cbf5166433cf5 2024-08-18T04:23:51.144000 REPORT RequestId: 55ac2b18-394c-4699-87a5-4ba52230f386 Duration: 27.01 ms Billed Duration: 28 ms Memory Size: 128 MB Max Memory Used: 38 MB
Pulizia
Non dimenticare di rimuoverlo
sam delete --stack-name "t3-go"
