Re: Measuring size of Session object

From: Alvin Bruney [MVP] (vapor)
Date: 06/02/04

  • Next message: John Linn: "Re: Measuring size of Session object" 
    Date: Wed, 2 Jun 2004 10:17:24 -0500

    right,
    session though is very lean. infact the bottle-neck stems from the
    serialization/deserialization of object access instead of bloated memory.
    Note that a caching strategy also includes putting user specific data in
    viewstate as opposed to session. this is a common approach for large sites.
    the downside is that the page load will be a bit slower, but this approach
    is very scalable. 

    -- 
Regards,
Alvin Bruney
[ASP.NET MVP http://mvp.support.microsoft.com/default.aspx]
Got tidbits? Get it here... http://tinyurl.com/27***
"Roger Kjærnsrød" <kjernsro@online.no> wrote in message 
news:uda5mZGSEHA.3052@TK2MSFTNGP12.phx.gbl...
> Thanks for your thoughts on this issue Alvin and I agree that a good 
> caching
> strategy is the way to go for common application data. But what I was
> thinking about here is the individual user data that is different for each
> user, so caching would not help in this case.
>
> And I am not talking about large amounts of data for each user. I was
> thinking about like max 5K of data per user, but if there is some kind of
> overhead for each session object that causes each object to be e.g. 20K 
> this
> would make a big difference in the total amount of memory usage for 60000
> simultaneous users (1.2 GB instead of 300Mb).
>
>
>
> Regards,
>
> Roger
>
> "Alvin Bruney [MVP]" <vapor at steaming post office> wrote in message
> news:%23jQq15%23REHA.1216@TK2MSFTNGP10.phx.gbl...
>> not that i know of.
>>
>> memory usage depends on a whole bunch of stuff. making use of a good
> caching
>> strategy with scalability in mind is a better alternative than measuring
>> quantities of objects since the size of an object can change throwing off
>> your calculations.
>>
>> My own tests show that a dataset with 100K rows occupies 100meg of 
>> memory.
>> That's entirely useless information since it is system specific and
> entirely
>> dependent on the dimensions of the dataset. It should only be used as a
>> extremely rough idea, about a level up from a wild guess in importance.
>>
>> -- 
>> Regards,
>> Alvin Bruney
>> [ASP.NET MVP http://mvp.support.microsoft.com/default.aspx]
>> Got tidbits? Get it here... http://tinyurl.com/27***
>> "Roger Kjærnsrød" <kjernsro@online.no> wrote in message
>> news:%234n7$f9REHA.3348@TK2MSFTNGP09.phx.gbl...
>> > We are building an application that must be able to handle up to 60000
>> > simultaneous users.
>> >
>> > Therefore I would like to know how much memory each of the users 
>> > session
>> > object uses.
>> >
>> > Is there an easy way to measure the size of each Session object?
>> >
>> >
>> >
>>
>>
>
>
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