dbTalk Databases Forums  

dbeng7.exe footprint in memory

sybase.public.sqlanywhere.general sybase.public.sqlanywhere.general


Discuss dbeng7.exe footprint in memory in the sybase.public.sqlanywhere.general forum.



Reply
 
Thread Tools Display Modes
  #1  
Old   
Tony Farrell
 
Posts: n/a

Default dbeng7.exe footprint in memory - 11-24-2004 , 04:44 PM







Hi Everyone -

Is there a way to reduce the memory that sybase consumes
in the system -

i have 7.0.3 running, and the footprint swells from 30-40k
at startup to around 400-450k during the course of the day.

Is there a way to reduce the footprint in memory during
runtime?

(cycling the service is not an option)

thanks
tony

Reply With Quote
  #2  
Old   
Greg Fenton
 
Posts: n/a

Default Re: dbeng7.exe footprint in memory - 11-24-2004 , 07:46 PM






Tony Farrell wrote:
Quote:
i have 7.0.3 running, and the footprint swells from 30-40k
at startup to around 400-450k during the course of the day.

Is there a way to reduce the footprint in memory during
runtime?

ASA uses dynamic cache sizing. It grows and shrinks the memory usage
based on the needs of the work it is being asked to do.

You can set lower and upper limits on the cache size using the -cl and
-ch options, respectively.

I am not sure about ASA 7.x, but with ASA 8.x and 9.x, the engine gives
back memory when other processes in the system need it (and ASA is not
using it). It is far more efficient for ASA to hold onto a resource if
nothing else is using it rather than taking the overhead of growing and
shrinking the cache continuously.

Is there a particular problem you are running into with the cache
growing to 450MB (I assume you mean MB and not kB)?

If your system is not being adversely affected by ASA holding onto the
resource, why worry about it?

For more information on its cache sizing, in the ASA 7.x online docs see:

ASA Adaptive Server Anywhere User's Guide
PART 5. Database Administration and Advanced Use
CHAPTER 26. Monitoring and Improving Performance
Using the cache to improve performance

Hope this helps,
greg.fenton
--
Greg Fenton
Consultant, Solution Services, iAnywhere Solutions
--------
Visit the iAnywhere Solutions Developer Community
Whitepapers, TechDocs, Downloads
http://www.ianywhere.com/developer/


Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.