Re: [nodejs] Weird behaviour with NodeJS and apache benchmark

[Daniel Rinehart]

It is a bug in the version of ab that is bundled with newer versions
of Mac OS X.

http://simon.heimlicher.com/articles/2012/07/08/fix-apache-bench-ab-on-os-x-lion

-- Daniel R. <dan...@neophi.com> [http://danielr.neophi.com/]


On Thu, Oct 11, 2012 at 7:59 PM, Crazy Frog <zhu...@gmail.com> wrote:
> Hi guys, I've post this question at stackoverflow, but I thought this group
> might be a better place for it:
>
> I'm testing out nodejs (0.8.11).
>
> with the following server app:
>
> var http = require('http');
> http.createServer(function (req, res) {
> console.log('hit!');
> res.writeHead(200, {'Content-Type': 'text/plain'});
> res.end('Hello World\n');
> }).listen(1337, '127.0.0.1');
> console.log('Server running at http://127.0.0.1:1337/');
>
>
> I ran apache benchmark:
>
> ab -r -v 4 'http://127.0.0.1:1337/'
>
>
> I get the following output:
>
> hit!
> hit!
> hit!
> hit!
> hit!
> hit!
> hit!
> hit!
> hit!
> ... (alot more)
>
> output from ab:
>
> Benchmarking 127.0.0.1 (be patient)...INFO: POST header ==
> ---
> GET / HTTP/1.0
> Host: 127.0.0.1:1337
> User-Agent: ApacheBench/2.3
> Accept: */*
>
>
> ---
> LOG: header received:
> HTTP/1.1 200 OK
> Content-Type: text/plain
> Date: Thu, 11 Oct 2012 06:40:04 GMT
> Connection: close
>
> Hello World
>
> LOG: Response code = 200
> ..done
>
>
> Server Software:
> Server Hostname: 127.0.0.1
> Server Port: 1337
>
> Document Path: /
> Document Length: 12 bytes
>
> Concurrency Level: 1
> Time taken for tests: 0.009 seconds
> Complete requests: 1
> Failed requests: 0
> Write errors: 0
> Total transferred: 113 bytes
> HTML transferred: 12 bytes
> Requests per second: 115.05 [#/sec] (mean)
> Time per request: 8.692 [ms] (mean)
> Time per request: 8.692 [ms] (mean, across all concurrent
> requests)
> Transfer rate: 12.70 [Kbytes/sec] received
>
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 8 8 0.0 8 8
> Processing: 0 0 0.0 0 0
> Waiting: 0 0 0.0 0 0
> Total: 9 9 0.0 9 9
>
> and thinking the default number of requests isn't 1 as is specified in ab
> manual, i tried:
>
> ab -v 4 -n 1 -c 1 'http://127.0.0.1:1337/'
>
> I get the same output (alot of 'hits!' in the log)
>
> I would expect there to be only one 'hit!' message in the log when it is hit
> with 1 request... The funny thing is, the application behaves correctly
> (with only 1 'hit!' message in the log) when I curled it.
>
> What is going on here?
>
> This is specific to node, I've tried the same with my jetty app, with `ab -c
> 1 -n 1`, there was only 1 recorded hit...
>
> --
> Job Board: http://jobs.nodejs.org/
> Posting guidelines:
> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines
> You received this message because you are subscribed to the Google
> Groups "nodejs" group.
> To post to this group, send email to nod...@googlegroups.com
> To unsubscribe from this group, send email to
> nodejs+un...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/nodejs?hl=en?hl=en