performance testing 2

[wandrer]

John/James,

Could you please reset the testforum directory/database? I have just started the 'real-world' testing of UBB based on the feedback at http://www.scriptkeeper.com/ubb/Forum8/HTML/000284.html .

I should be able to start the testing (if all goes well) on vbulletin around 2pm US EST tomarrow. Simple test that runs for x hours based on the percentages in the url above.

Can't wait to get the stats and graphs from this set of tests...

Anyone else have any suggestions for the 'real-world' testing ? (as scientific a non-scientific test could be)...

[James]

Sure - I'll make sure that the db is reset and the version upgraded to 1.1.1... which is on track for release this evening.

Everything will be set up by 2pm tomorrow :)

All the best,

James

[Martin]

about the only way I see "real world" testing could be done would be to run a script against the forums, posint as, say 10 users (200+ would be more accurate for my board) all going through different routines of the script at the same time.

[wandrer]

Just completed a six hour test with UBB running six clients. The six clients was the most that my free computer (P2-450) could handle. I know it is still compairing apples to oranges, but doing this simple test against vbulletin will give me some additional information to graph. After that, I could ramp it up to many more clients with John's permission. Hate to saturate a DSL connection against his website when he has other sites that might be affected. Though as soon as I can get my hands on it, I'll really test it... :)

[John]

I have reset the forums for you - they are now empty again.

A new feature in this version is a check for duplicate posts. This could be a problem if you are posting the same post over and over again, so you should use a random string in the message if possible.

How much bandwidth does your DSL provide? Our connection is 10mbps, but I would guess that the server would max out before saturating the connection.

Let me know when you are starting to test, so that I can monitor the server and tell you if you are about to kill it. When you did the previous test, the processor was on about 50% most of the way through I think.

Thanks,
John

[wandrer]

43,200 posts per day is what I was averaging - and all the posts, titles, forums, and images were randomaly chosen prior to posting the message. Currently, I am at 384/384kbps, but I am sure that it would saturate your CPU prior to saturating the DSL or your 10mbps connection.

As it is 7:40am here, I'll try and get something together to run by noon (US EST). It will be a shorter test (2 hr), but I'm sure it would put more of a strain on the CPU.

[John]

OK - I will be on and off then. I'll check that nothing has broken once you get going.

BTW, do you have the UBB stats up yet?

John

[wandrer]

A new feature in this version is a check for duplicate posts.

How does it check for duplicate posts... What does it check when it is looking for a duplicate post (username/message/subject) ? What does it do when it finds a duplicate post ?

[John]

IT basically checks for exact duplicates of the post - user, threadid, forumid, title and message. If there is a dupe found from the last 5 minutes, then a new message is not posted, but the user is just transported to the existing message.

John

[wandrer]

Started the program and quit after 30 seconds. Was notified that 92 posts returned code 200. But when I went to the index page, only the first topic was posted. All the rest must have been caught as duplicate posts. Trying it locally here, even when a different forum is submitted, it still says that the topic was submitted, but it wasn't...

[wandrer]

could you turn off the duplicate check for the testforum site ? It appears that that might be the problem.

[shri]

Hi John,

When you get a second, could you folks also document the php and mysql configuration that you're running the stress tests on?

Cheers,
Shri

[John]

wanderer: I'll fix that up for you in a mo.

Hardware:
P3 - 500Mhz
256mb RAM
6G IDE hdd

MySQL 3.22.32
PHP 3.0.15
Red Hat Linux 6.something

This machine also runs the VB-World Forums (http://forums.vb-world.net/).

John

[shri]

John,

I'm more interested in knowing if you've made any mods to the default mysql / php builds, config files.

Shri

[John]

Nope - no changes to the builds particularly. I have fiddled with the PHP config to give it more memory and execution time for the more heavy things that it does (not the forums). MySQL - we have just increased the maximum connections to stop problems with having too many concurrent users. Apache - nothing.

Wanderer: It is done. Try again now.
Also, don't forget to include forumid when posting a new thread - I got a lot of emails yesterday, telling me that there was no forumid specified.

John