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.NET Forum / ASP.NET / General / July 2007

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Aspnet Worker Thread Memory Usage

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jld - 02 Jul 2007 19:00 GMT
Hi,

I developed an asp.net based eCommerce Website for a client and it is
hosted at discount asp.

The site is quite interactive, queries a database a lot and uses
ajax.asp.net to spice up interactivity.
The service suffers from a lot of restarts since discountasp enforces
a 100mb per worker thread limit and when you top it, the service gets
restarted. When there is a lot of traffic on the site, this happens
almost every other minute and users see an unwelcoming "service
unavailable" quite often.

Now I already tried to strip down memory usage, by eliminating almost
all session objects, by using datareaders instead of datasets and by
by employing a very disconnected, database based "state" architecture,
but I still cannot keep MB usage under 100mb.

So I am about to tell my client that he will need to move to a host,
that does not have such a strict memory policy, maybe a virtual host
on a machine with few users.

But just to double check: how does memory usage on your sites look
like? Could you check in task manager, what asp net uses when you view
a single site/application, and the tell me, together with some info
about the site's complexity?

I would be very glad, to have some numbers, that could tell me, if the
host just is not thought for heavier usage or if I am just doing
something stupid that no one else does.

Jan
Peter Bromberg [C# MVP] - 02 Jul 2007 20:38 GMT
You can track such events on a hosted account with some of the ASP.NET event
providers. Here is an article that touches on some of this, including
tracking app recycles.

http://www.eggheadcafe.com/tutorials/aspnet/7ea62799-d1cb-42ee-a1f2-e68b28dbe836
/restart-aspnet-apps-prog.aspx


Aside from that, cache everything that you can to cut down on database
usage. Failing that, you need to consider a different host. I've used
CrystalTech with excellent results, and also gate.com with good results and
few restarts.
-- Peter
Site:  http://www.eggheadcafe.com
UnBlog:  http://petesbloggerama.blogspot.com
BlogMetaFinder(BETA):    http://www.blogmetafinder.com

> Hi,
>
[quoted text clipped - 28 lines]
>
> Jan
Otavio Decio - 03 Jul 2007 01:55 GMT
> Aside from that, cache everything that you can to cut down on database
> usage.

Not sure how that will help on his memory usage problem. One thing you might
try is to force garbage collection once in a while. Also .NET may leak
memory, see if you can find potential culprits.

I agree with considering a different host, though. If you have so much
usage, maybe it is time to move up from your discount provider.

Otavio

> You can track such events on a hosted account with some of the ASP.NET
> event
[quoted text clipped - 45 lines]
>>
>> Jan

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