Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: A profiling surprise ...

by mpeppler (Vicar)
on May 27, 2008 at 10:07 UTC ( #688643=note: print w/ replies, xml ) Need Help??


in reply to A profiling surprise ...

The first thing you should do is to check that the DB queries you issue are efficient. With Sybase this means setting the SHOWPLAN and STATISTICS IO options, and checking to make sure that all accesses are done via indexes (no table scans for actual physical tables), and that the query plans make sense.

The second thing is to see if the data fetch algorithm can be improved to reduce the amount of work needed to find the appropriate data. DB engines are optimized (and incredibly efficient) at finding data given a set of criteria and proper indexes/joins between tables - making use of that power can improve overall speed by several orders of magnitude (just as dragonchild mentioned above)

Michael


Comment on Re: A profiling surprise ...
Re^2: A profiling surprise ...
by chexmix (Hermit) on May 27, 2008 at 14:44 UTC
    Mein Gott, I have so much to learn! I waver between being excited about that and being overwhelmed by that ... which is normal, I suppose.

    Thanks!

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://688643]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (9)
As of 2014-08-21 14:28 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (136 votes), past polls