RE: [Summary-Talk] Memory Question

["Lisa Walley" <l.walley@xxxxxxxxx>]

Jason,

We are also hitting the 2 Gig limit. We are currently running Summary 
2.3.10 but due to upgrade soon. I am aware that an upgrade will improve 
memory usage and was wondering how much of an improvement we could expect?

Not sure if you're still looking for this information (see correspondence 
below) but here is the Memory by Type section of a recent Program Status 
report (trying to process a months worth of stats, DNS lookups was off 
but memory saving recommendations are not yet implemented ie Expire hosts 
was set to never, Expire req. and ref if not hit.. was set to 0):

Memory used		881,664K   
Memory by Type
	89.71%	Request
	5.08%		Req.Hist
	1.69%		Int.Refer
	1.61%		Host
	0.89%		Path
	0.53%		DNSTran
	0.24%		Referrer
	0.07%		Agent 

Let me know if you're looking for any further info.

Regards,
Lisa

Lisa Walley
Interactive Media Developer
The Natural History Museum, London





-----Original Message-----
From: Jason Linhart [mailto:jason@summary.net]
Sent: 11 May 2004 16:01
To: summary-talk@lists.summary.net
Subject: Re: [Summary-Talk] Memory Question


On 5/11/04 10:20 AM Pablo F. Garcia Melga (pablo.garcia@xlnet.com.ar) 
wrote:

>Jason : If the Machine running summary SP, has 4Gb of RAM, and has the
>/3gb switch in the boot.ini file, will the summary sp use 3Gb of ram for
>the database instead of 2gb ?

No. Summary SP Lite and SP are limited to a maximum database size of just 
under 2 Gig, (basic) and Plus have a lower limit. Summary is not a 
Windows "3 Gig aware" application, so making that change will have no 
effect.

On other platforms, notably Linux, Summary is able to use the third Gig 
for temporary memory, leaving all of the first two gig for the database. 
But temporary memory usage is never that significant so it didn't end up 
making a detectable difference, and thus we never did the special coding 
to make the Windows version "3 Gig aware".

We are thinking about a 64 bit version of Summary, that will have a far 
far higher limit on the database size, but there is no timetable for when 
that will be done.

More immediately, we are working on ways to use the existing 2 Gig more 
efficiently. I hope to have some noticeable improvements in that area 
quite soon. As part of that it would be nice if I could see the Memory by 
Type section of your Program Status report (and from anyone else who is 
running near the 2 Gig limit). That would help me tune Summary's behavior 
for more efficient memory use. Basically, I am trying to get a sense of 
what is using the most memory for people who are running into the 2 Gig 
limit, so I can focus on improving those data types.

And, just to be through, have you read the Memory FAQ, 
<http://summary.net/manual/faq.html#memorylack>? There is a new, more 
detailed, version of the memory FAQ entry that came out with 2.5, that 
also almost entierly applies to 2.3.12. There are many suggestions in 
there for ways of getting your memory usage under control.

Jason

-----------------
Jason@Summary.Net
-----------------
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