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Description:

profyle 0.3.0

Development tool for analysing and managing python traces

Why do you need Profyle?
Bottlenecks
With Profyle you can easily detect where in your code you have a bottleneck, simply analyze the trace and see what function or operation is taking most of the execution time of the request
Enhance performace
Analyze the traces and decide which parts of your code should be improved
Installation

$ pip install profyle

---> 100%

Example
1. Implement
In order to track all your API requests you must implement the ProfyleMiddleware
ProfyleMiddleware

Attribute
Required
Default
Description
ENV Variable

enabled
No
True
Enable or disable Profyle
PROFYLE_ENABLED

pattern
No
None
0nly trace those paths that match with pattern
PROFYLE_PATTERN

max_stack_depth
No
-1
Limit maximum stack trace depth
PROFYLE_MAX_STACK_DEPTH

min_duration
No
0 (milisecons)
Only record traces with a greather duration than the limit.
PROFYLE_MIN_DURATION

FastAPI
from fastapi import FastAPI
from profyle.fastapi import ProfyleMiddleware

app = FastAPI()
# Trace all requests
app.add_middleware(ProfyleMiddleware)

@app.get("/")
async def root():
return {"hello": "world"}

from fastapi import FastAPI
from profyle.fastapi import ProfyleMiddleware

app = FastAPI()
# Trace all requests that match that start with /users
# with a minimum duration of 100ms and a maximum stack depth of 20
app.add_middleware(
ProfyleMiddleware,
pattern="/users*",
max_stack_depth=20,
min_duration=100
)

@app.get("/users/{user_id}")
async def get_user(user_id: int):
return {"hello": "user"}

Flask
from flask import Flask
from profyle.flask import ProfyleMiddleware

app = Flask(__name__)

app.wsgi_app = ProfyleMiddleware(app.wsgi_app, pattern="*/api/products*")

@app.route("/")
def root():
return "<p>Hello, World!</p>"

Django
# settings.py

MIDDLEWARE = [
...
"profyle.django.ProfyleMiddleware",
...
]

2. Run

Run the web server:

$ profyle start

INFO: Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO: Started reloader process [28720]
INFO: Started server process [28722]
INFO: Waiting for application startup.
INFO: Application startup complete.

3. List

List all requests tracing:

4. Analyze

Profyle stands on the shoulder of giants: Viztracer and Perfetto
Detailed function entry/exit information on timeline with source code
Super easy to use, no source code change for most features, no package dependency
Supports threading, multiprocessing, subprocess and async
Powerful front-end, able to render GB-level trace smoothly
Works on Linux/MacOS/Window

CLI Commands
start

Start the web server and view profile traces

Options
Type
Default
Description

--port
INTEGER
0
web server port

--host
TEXT
127.0.0.1
web server host

$ profyle start --port 5432

INFO: Uvicorn running on http://127.0.0.1:5432 (Press CTRL+C to quit)
INFO: Started reloader process [28720]
INFO: Started server process [28722]
INFO: Waiting for application startup.
INFO: Application startup complete.

clean

Delete all profile traces

$ profyle clean

10 traces removed

check

Check traces DB size

$ profyle check

DB size: 30MB