Low-level web programming in Racket and a wiki in 500 lines
1–10 of 29 posts
Re: Low-level web programming in Racket and a wiki in 500 lines
#2How fast is web-server/servlet? Is it fit for production use?
Last time I checked (which was, admittedly, a long time ago) it served noticeably fewer "hello, template world" requests per second than Flask running on Python 2.7 while using more RAM. This was a pity to me because I thought Racket could otherwise be a very interesting language for web development.
Re: Low-level web programming in Racket and a wiki in 500 lines
#3I'm glad to see someone talking about using the lower-level web libraries in Racket. The high-level continuation-based ones are ridiculously unsuitable for actual web programming (they store full state on the server at all times, and the URL gives you full access to the session, among other issues), but the lower-level ones actually look pretty clean and modern. And yet all the documentation keeps talking about the continuation stuff, bizarrely.
Re: Low-level web programming in Racket and a wiki in 500 lines
#4This is very useful. I'm in the middle of a Racket web project right now and I got hung up on parsing/processing form data. The Racket docs are very thorough, but they can be confusing if you don't know what you're looking for.
If anyone here has experience with web stuff in Racket, I've set up a small skeleton for Racket web projects: https://github.com/samertm/web-project-bootstrap.rkt
Right now it contains skeletons for talking to sqlite, setting up a router and handlers, and manipulating the web server from the command line. I need to add an ORM (I'm not sure if Racket has any up-to-date ORMs?) and static file handlers. I'd love help or feedback!
Re: Low-level web programming in Racket and a wiki in 500 lines
#5This is very useful. I'm in the middle of a Racket web project right now and I got hung up on parsing/processing form data. The Racket docs are very thorough, but they can be confusing if you don't know what you're looking for. If anyone here has experience with web stuff in Racket, I've set up a small skeleton for Racket web projects: https://github.com/samertm/web-project-bootstrap.rkt Right now it contains skeleto…
From you experience, how is performance? what would you compare it too? The examples ae useful, thank you.
Re: Low-level web programming in Racket and a wiki in 500 lines
#6This is very useful. I'm in the middle of a Racket web project right now and I got hung up on parsing/processing form data. The Racket docs are very thorough, but they can be confusing if you don't know what you're looking for. If anyone here has experience with web stuff in Racket, I've set up a small skeleton for Racket web projects: https://github.com/samertm/web-project-bootstrap.rkt Right now it contains skeleto…
From you experience, how is performance? what would you compare it too? The examples ae useful, thank you.
I haven't written any big projects in Racket, so I can't say how it fares on real-world projects with real-world data, but here are the results for a very minimal Racket project using ApacheBench:
~ $ ab -n 100 -c 10 "http://localhost:8888/"
This is ApacheBench, Version 2.3
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient).....done
Server Software: Racket
Server Hostname: localhost
Server Port: 8888
Document Path: /
Document Length: 89 bytes
Concurrency Level: 10
Time taken for tests: 0.084 seconds
Complete requests: 100
Failed requests: 0
Total transferred: 26800 bytes
HTML transferred: 8900 bytes
Requests per second: 1192.32 [#/sec] (mean)
Time per request: 8.387 [ms] (mean)
Time per request: 0.839 [ms] (mean, across all concurrent requests)
Transfer rate: 312.05 [Kbytes/sec] received
Re: Low-level web programming in Racket and a wiki in 500 lines
#7Earlier quoted context omitted.
From you experience, how is performance? what would you compare it too? The examples ae useful, thank you.
I haven't written any big projects in Racket, so I can't say how it fares on real-world projects with real-world data, but here are the results for a very minimal Racket project using ApacheBench: ~ $ ab -n 100 -c 10 " http://localhost:8888/" This is ApacheBench, Version 2.3 Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benc…
Without a baseline comparison against other servers with same functionality on the same computer, these results mean nothing.
For example here are benchmarks from Django's single-threaded debug webserver:
Benchmarking 127.0.0.1 (be patient).....done
Server Software: WSGIServer/0.1
Server Hostname: 127.0.0.1
Server Port: 8000
Document Path: /
Document Length: 2 bytes
Concurrency Level: 10
Time taken for tests: 0.100 seconds
Complete requests: 100
Failed requests: 0
Total transferred: 16400 bytes
HTML transferred: 200 bytes
Requests per second: 998.90 [#/sec] (mean)
Time per request: 10.011 [ms] (mean)
Time per request: 1.001 [ms] (mean, across all concurrent requests)
Transfer rate: 159.98 [Kbytes/sec] received
Or Nginx returning the same thing:
Benchmarking 127.0.0.1 (be patient).....done
Server Software: nginx/1.6.2 Server Hostname: 127.0.0.1 Server Port: 9080
Document Path: /gangam Document Length: 14 bytes
Concurrency Level: 10 Time taken for tests: 0.013 seconds Complete requests: 100 Failed requests: 0 Total transferred: 15600 bytes HTML transferred: 1400 bytes Requests per second: 7478.31 [#/sec] (mean) Time per request: 1.337 [ms] (mean) Time per request: 0.134 [ms] (mean, across all concurrent requests) Transfer rate: 1139.27 [Kbytes/sec] received
Re: Low-level web programming in Racket and a wiki in 500 lines
#8Just being exposed to Racket last month I was extremely surprised at how well it clicked with me as opposed to Haskel which I tried to learn for a few months on my own and just tried out SML and it moved to Racket. Can't put a finger on it but Racket just makes sense to me.
Re: Low-level web programming in Racket and a wiki in 500 lines
#9Just being exposed to Racket last month I was extremely surprised at how well it clicked with me as opposed to Haskel which I tried to learn for a few months on my own and just tried out SML and it moved to Racket. Can't put a finger on it but Racket just makes sense to me.
I felt the same way, Racket is ridiculously fun to use! :)
Re: Low-level web programming in Racket and a wiki in 500 lines
#10This is very useful. I'm in the middle of a Racket web project right now and I got hung up on parsing/processing form data. The Racket docs are very thorough, but they can be confusing if you don't know what you're looking for. If anyone here has experience with web stuff in Racket, I've set up a small skeleton for Racket web projects: https://github.com/samertm/web-project-bootstrap.rkt Right now it contains skeleto…
How exactly are you hung up with form data? Its low level, so you certainly can't get validation out of box, but otherwise in my experience getting form data out is fairly straight forward. I recently wrote my first Racket web app. Its not pretty or following best practices but you can take a look.