-dain
On Friday, April 4, 2003, at 02:29 PM, Langelage, Frank wrote:
Today I executed my little performance test with current cvs-versions of 3.2 and HEAD.
The execution time for this testcase dropped to ~ 60 min with HEAD: a significant improvement.
But the execution time with 3.2RC5 is even better: ~ 50 min.
So I will take your suggestion and use 3.2 for now.
regards - frank
Dain Sundstrom wrote:
Ok now it should be faster then is has ever been. I have another idea on how to make it even better, but it should be super fast right now.
-dain
On Thursday, March 27, 2003, at 02:08 PM, Dain Sundstrom wrote:
JBoss HEAD is a work in progress. The performance will get worse and better; there will be bugs. You can't make an omelet without breaking a few eggs. I suggest you use 3.2.
-dain
On Thursday, March 27, 2003, at 09:12 AM, Langelage, Frank wrote:
After the cvs update of JBoss-head yesterday, I encountered a massive performance decrease for one of my testcases.
The update included the changes from Dain of the last days.
Three EJB's are involved by this task: 1. Item, CMP EntityBean PK itemId 2. BoM, CMP EntityBean, PK primItemId+posNr 3. LoadData, StatelessSessionBean
Item has a unidirectional relation to BoM (Item.itemId->BoM.primItemId).
BoM has a relation back to Item (BoM.subItemId -> Item.subItemId).
LoadData opens a File, reads line by line and creates the beans for the data, all within one big transaction.
First loadItemData is executed, then loadBoMData.
The performance of loadBomData has dropped from about 1h 20min to 6h 20min now (~36600 rows in file).
When loadBoMData starts, the CPU usage of my AppServer increases to 85 - 90%. The CPU usage of database server drops to 7-9%.
(to compare: while loadItemData is running, AppServer 25%, DBServer 75%).
Other data loads which also create beans with CMR work well or even slightly better than before.
Any comments ?
Regards - Frank
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