Simple Socket Question?
jhouchin at texoma.net
Tue Feb 18 05:56:00 UTC 2003
John M McIntosh wrote:
> Well I think Ian would like to know about the "I also crashed the
> server with -n10000. :)"
I can't actually haven't duplicated it since. But here is what I was
naively doing at the time. And I think this may be the root of the issue.
I was experimenting with various webserving options.
I had Comanche HelloWorldModule on one port, StaticFileModule on another
port, Avi's code on another port, Avi's code modified on another port.
With all of that while benchmarking using ab I decided to attempt to
ab(use) Avi's code with -n10000. I then got errors the first time. The
second and third attempts with ab returned empty requests. So I checked
the page in Mozilla. Nothing.
I then selected Avi's code and did doit.
It never failed again.
With only Avi's code I just ran ab multiple times with -n10000.
No failures. I then ran ab with -n50000.
No failures and 887rps. :)
Maybe it was the multiple socket/port issue I think I read about.
Anyway, I hope this helps.
Tomorrow, I'll download his future VM and give it a go.
> On Monday, February 17, 2003, at 07:41 PM, Jimmie Houchin wrote:
>> Avi Bryant wrote:
>>> On Mon, 17 Feb 2003, Jimmie Houchin wrote:
>>>> I'm trying to test the performance of Squeak for very simple http
>>>> The test I want to perform is Squeak answering a simple request like
>>>> with nothing more than a simple string like 'Hello World!'.
>>>> I want it as basic, low overhead (as fast) as possible.
>>> If you have Comanche loaded (and thus its ConnectionHandler class), I
>>> think this is minimal:
>>> |output listener|
>>> output _ 'HTTP/1.0 200 OK\Content-Type: text/html\\Hello World'
>>> withCRs withInternetLineEndings.
>>> listener _ ConnectionHandler
>>> onPort: 8000
>>> handler: [:s | s getData; sendData: output; closeAndDestroy]
>>> priority: Processor highIOPriority.
>>> listener start.
>>> On my system (1.4Ghz Athlon), ab gives me this:
>>> Concurrency Level: 5
>>> Time taken for tests: 0.480 seconds
>>> Complete requests: 1000
>>> Failed requests: 0
>>> Broken pipe errors: 0
>>> Total transferred: 55000 bytes
>>> HTML transferred: 11000 bytes
>>> Requests per second: 2083.33 [#/sec] (mean)
>>> Time per request: 2.40 [ms] (mean)
>>> Time per request: 0.48 [ms] (mean, across all concurrent
>>> Transfer rate: 114.58 [Kbytes/sec] received
>> Thanks Avi.
>> I tried it on my 700mhz Athlon Debian machine.
>> I got between 530 and 680 with -n1000.
>> I got up to 852 with -n10000.
>> I also crashed the server with -n10000. :)
>> With Comanche I got a variety of results.
>> With StaticFileModule about 65rps.
>> With HelloWorldModule up to 266rps with -n10000.
>> Just trying to get an idea of what Squeak can do webservingwise.
>> I wonder if Ian's new VM code will improve socket performance?
>> This is on a 3.5a image with his latest stable VM.
>> Once again thanks.
>> Jimmie Houchin
> John M. McIntosh <johnmci at smalltalkconsulting.com> 1-800-477-2659
> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com
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