https://github.com/clinicjs/node-clinic-bubbleprof-demo

A Clinic Bubbleprof example
https://github.com/clinicjs/node-clinic-bubbleprof-demo

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A Clinic Bubbleprof example

• Host: GitHub
• URL: https://github.com/clinicjs/node-clinic-bubbleprof-demo
• Owner: clinicjs
• License: mit
• Created: 2018-05-25T10:54:29.000Z (over 6 years ago)
• Default Branch: main
• Last Pushed: 2020-08-21T19:49:06.000Z (over 4 years ago)
• Last Synced: 2024-05-28T14:05:53.835Z (7 months ago)
• Language: JavaScript
• Homepage: https://clinicjs.org/
• Size: 12.7 KB
• Stars: 14
• Watchers: 23
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Bubbleprof Example

This is an example of a small real world-ish program. It contains an import script (`import-npm.js`) that imports the npm registry metadata into a mongodb running on localhost and a series of servers showcasing problems and improvements.

The mongodb will contain two collections `slow` and `fast` which contain the same data, except `fast` will contain an index for doing fast lookups and `slow` will not.

If you have docker installed you can install and run a mongo container by doing.

## Run Mongo

```sh

docker pull mongo

docker run -it -p 27017:27017 mongo

```

## Alternative

Some platforms may give a Docker error and require the following command instead

```sh

docker pull mongo

docker run -v $(pwd)/datadir:/data/db -p 27017:27017 -d mongo

```

## Import Data

Then to import some data

```sh

# note you can just run this for a bit and kill it

npm install

node import-npm.js

```

There are 4 iterations of a server that returns the 5 latest and 5 oldest updated modules on npm.

1.  Returns the latest and oldest 5 modules from an _unindexed_ collection

1.  Returns the latest and oldest 5 modules from an _indexed_ collection

1.  Returns the same as `2` but does the queries in parallel.

1.  Caches the result from `3` in 5s in an LRU cache.

Each should produce different Bubbleprof results indicating the async profile of each. Running `1` you should see a ton of latency, running `2` you should see much more throughput, and running `3` you should see a few more branches in the async graph.

## Run Bubbleprof

To run the first one do:

```sh

clinic bubbleprof --autocannon [ -c 5 -a 500 / ] -- node 1-server-with-no-index.js

```