User: 

You are given access to make searches on the Internet. The format for making a search is: 1. The user sends a message. 2. You will decide whether to make a search. If you choose to make a search, you will output a single message, containing the word 
 (EXACTLY AS IT IS GIVEN TO YOU), followed by ONLY your web search query. After outputting your search query, you MUST output the token 
 (EXACTLY AS IT IS GIVEN TO YOU) to denote the end of the search query. Keep your search query concise as there is a 400 characters limit.
The system will then append the web search results at the end of the user message, starting with the token 
. Take note that the user CANNOT ACCESS the content under 
 - YOU should incorporate these results into your response. Additionally, If the token 
 is present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason.
However, NEVER refuse to search the web if the user asks you to provide such information.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Do your best to be informative. However, you MUST NOT make up any information. If you think you might not know something, search for it.

Assistant: Understood. I will strictly follow these instructions in this conversation.
User:  my express.js server is using increasing memory upon every request - how do i tell it to free memory


 for " my express.js server is using increasing memory upon every request - how do i tell it to free memory":

1.
URL: https://stackoverflow.com/questions/16441601/node-express-memory-increase-on-every-request
Title: Node/Express memory increase on every request - Stack Overflow
Content: <b>I</b> have a simple express 3.2 app that returns a 200 when posted <b>to</b>. <b>I</b> watch the <b>memory</b> RSS of the node (v0.10.5) process and <b>every</b> <b>request</b> increases the <b>memory</b> by 4kb or so. The <b>server</b> code is quite simple:

2.
URL: https://stackoverflow.com/questions/31789636/memory-consumption-in-node-js-express-application
Title: Memory consumption in Node.js/Express application
Content: <b>It</b> has 2 axis. The CPU axis goes to 100%. The <b>memory</b> graph scales by the maximum amount consumed in the time window. So you are not actually <b>using</b> 100% of the <b>memory</b>, the 100% label only applies to CPU usage. I think you might be slightly colorblind. The graph has two shades of green, and <b>it's</b> definitely the <b>memory</b> line that is pegged to the top.

3.
URL: https://stackabuse.com/6-easy-ways-to-speed-up-express/
Title: 6 Easy Ways to Speed Up Express - Stack Abuse
Content: This is one of those improvements that is extremely easy to add, and it provides a great performance boost. Compressing your page content can reduce page size by up to 70%. var compression = require ('compression'); var express = require ('express'); var app = express(); app.use(compression());

4.
URL: https://expressjs.com/en/advanced/best-practice-performance.html
Title: Performance Best Practices Using Express in Production
Content: This article discusses performance and reliability best practices for Express applications deployed to production. This topic clearly falls into the "devops" world, spanning both traditional development and operations. Accordingly, the information is divided into two parts: Things to do in your code (the dev part): Use gzip compression.

5.
URL: https://medium.com/@alihaydargulec/boosting-express-js-performance-with-the-express-cache-middleware-5bd6be97e89c
Title: Boosting Express.js Performance with the Express Cache Middleware
Content: <b>To</b> harness the power of the Express Cache Middleware in your <b>Express.js</b> application, you'll want to start by installing it from the npm package repository. The process is straightforward. Open ...

6.
URL: https://github.com/expressjs/express/issues/3871
Title: Memory growth with Node 10 · Issue #3871 · expressjs/express
Content: If you start the above script with node <b>server</b>.js and then do a <b>request</b> <b>using</b> curl -s localhost:3001, then it will output the change in the heap <b>every</b> other time.The output of the difference in added and cleaned items should average out to 0 (calculated as delta in the script and output as the 4th column). For most of the values it is 0, but for Native, Timer and TimersList <b>it's</b> usually 1.

7.
URL: https://www.unrepo.com/expressjs/performance-optimization-in-expressjs
Title: Performance Optimization in Express.js - unrepo.com
Content: This tutorial will guide you through various techniques and best practices to optimize the performance of your <b>Express.js</b> applications. 1. Caching. Caching is an effective technique to reduce response times and alleviate <b>server</b> load. Here's an example of <b>how</b> <b>to</b> implement caching <b>using</b> the <b>memory</b>-cache library: Install the <b>memory</b>-cache library ...

8.
URL: https://medium.com/@louistrinh/taming-large-requests-limiting-request-size-in-node-js-6791b7318bd6
Title: Taming Large Requests: Limiting Request Size in Node.js
Content: There are two primary approaches to configure <b>request</b> size limits in Node.js applications: <b>Using</b> Body Parsers: Popular body parsers like body-parser (deprecated) or express.json() (recommended ...

9.
URL: https://medium.com/the-node-js-collection/simple-server-side-cache-for-express-js-with-node-js-45ff296ca0f0
Title: Simple server side cache for Express.js with Node.js
Content: This is where <b>server</b>-side cache comes in handy. The goal of <b>server</b> side cache is responding to the same content for the same <b>request</b> independently of the client's <b>request</b>. In our example above ...

10.
URL: https://github.com/expressjs/express/issues/4324
Title: express memory increase until 100% #4324 - GitHub
Content: The problem <b>is</b>: <b>I</b> run this <b>server</b> use pm2. When I start <b>server</b>, pm2 shows <b>server</b> <b>memory</b> use 68.8 MB and keep it stable When I run script, pm2 shows <b>server</b> <b>memory</b> use FROM 68.8MB TO 244.5MB After script over, <b>server</b> become stable again, but pm2 shows <b>server</b> <b>memory</b> use 226.2 MB If I run this script more times, <b>server</b> will crash someday.

11.
URL: https://blog.alexseifert.com/2016/06/16/node-js-fixing-a-memory-leak-in-express-memorystore/
Title: Node.js: Fixing a memory leak in Express MemoryStore
Content: When <b>using</b> a combination of Express and krakenjs in your Node.js application, there is a feature enabled by default which automatically leads to a nasty <b>memory</b> leak. It uses a technology called MemoryStore in order to store user sessions which works well in a development environment, but is problematic on a production system.

12.
URL: https://github.com/expressjs/express/issues/3552
Title: Memory Leak · Issue #3552 · expressjs/express - GitHub
Content: We've been experiencing a <b>memory</b> leak in our node <b>servers</b>. Over the course of a day or so the <b>memory</b> in our <b>servers</b> started to fill until we got an alert and had to restart the app. We added new relic to check the node VM <b>memory</b>: <b>Upon</b> debugging and testing we've come to the conclusion that the leak could be in express.

13.
URL: https://github.com/expressjs/express/issues/2470
Title: Memory usage · Issue #2470 · expressjs/express - GitHub
Content: Running the script below, and then refreshing localhost:5000 in a web browser results in the <b>memory</b> usage on Node continually growing. app = express(); res.json("something"); console.log("info", "Listening on port 5000"); <b>Using</b> Node .10.33 I experience the same behavior, but <b>memory</b> usage seems to grow slower.

14.
URL: https://dev.to/trydaily/introduction-to-memory-management-in-nodejs-applications-5b4m
Title: Introduction to memory management in Node.js applications
Content: The entirety of <b>memory</b> used for a running Node application is held in what is known as a Resident Set. This includes: The application code. Static data. The stack. The heap. To sum it up: Node.js utilizes the V8 engine's <b>memory</b> allocation mechanism, which includes a Resident Set of <b>memory</b> allocated to the program.

15.
URL: https://github.com/expressjs/express/issues/3413
Title: Possible memory leak · Issue #3413 · expressjs/express - GitHub
Content: So there could be a possible <b>memory</b> leak on Express v4.x. We have been in constant communications with the Google App Engine team to troubleshoot our <b>servers</b> crashing thought to high <b>memory</b> usage. and appears to be a <b>memory</b> leak in Express. Our API is served by Express 4.14.0, the screenshot aboce is an instance only receiving 6 health checks ...


Assistant: To address the increasing memory usage by your Express.js server on every request, consider the following steps:

1. **Memory Leaks:** Check for memory leaks in your application, which can occur if objects are continuously being added to memory and not being released. Analyze your code and look for variables or objects being unintentionally kept alive. You can use tools such as [Node.js profiling](https://nodejs.org/en/docs/guides/simple-profiling/) and memory leak detectors.

2. **Request handling:** Make sure that you are not storing unnecessary data in your Express.js routes or middleware. Review your code for instances of global variables or server-side caching that might retain references to data longer than needed.

3. **External Libraries:** Inspect any third-party libraries or middleware for potential memory leaks. Ensure they are up-to-date, as new versions may contain fixes for known issues.

4. **Sessions Management:** If you're using session management (e.g., Express sessions with MemoryStore), consider using a store that is more suitable for production, like Redis or MongoDB, to help manage session data efficiently.

5. **Use eslint-plugin-node:** This tool can help identify patterns in your code that might lead to memory leaks. For example, it can warn you about using anonymous functions, which can unintentionally retain references to variables.

6. **Optimize Code Practices:** Follow performance best practices for Express.js applications, such as using Gzip compression and setting appropriate HTTP headers to optimize response sizes and client-side caching.

Refer to resources like [Performance Optimization in Express.js](https://www.unrepo.com/expressjs/performance-optimization-in-expressjs) for comprehensive steps to enhance your application's performance. Additionally, community discussions on platforms like Stack Overflow or the [Express.js GitHub repository](https://github.com/expressjs/express/issues) may provide insights into similar issues faced by other developers.
User: ok thx
Assistant: