about performance vb.net

[rusdyrip]

hi all,

i am bit confused about logic for performance

what is the best way :

process on transaction or process on report

ex : sum for last stock,
i calculate every transaction or i calculate just on report

sory bad english

[debasisdas]

Better to calculate directly on report.

[rusdyrip]

Better to calculate directly on report.

but it makes my report become slow to load

i have application load 1500 item
and this 1500 item have all about 10000 row to calculate

and it's take time about 20 sec to display all,is this normal?
my customer always comment slow about it

my cpu spec is AMD Turion X2 and have Memory 1 gb

thx