Improving performance for java

I'm new to this so please bare with me ... I have 2 basic questions
I just upgraded my server to SunOS 5.10 Generic_139555-08 sun4u sparc SUNW,Sun-Fire-V440
I also upgraded java to java version "1.6.0_14"
This is a 4 processor box. Top gives me:
last pid: 26233; load averages: 2.79, 2.99, 3.12 13:23:57
174 processes: 172 sleeping, 2 on cpu
CPU states: 40.2% idle, 54.2% user, 5.6% kernel, 0.0% iowait, 0.0% swap
Memory: 8192M real, 3059M free, 6156M swap in use, 4105M swap free
PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
17294 prodslic 270 0 0 654M 641M cpu/1 527:36 50.02% java
*!st Question:*
*1. Why is java using so much cpu time?*
When I run ps -ef | grep java:
root 15666 1 0 Aug 10 ? 4:52 /usr/java/bin/java -server -Xmx128m -XX:+UseParallelGC -XX:ParallelGCThreads=4
prodslic 17294 1 25 18:07:14 ? 530:07 /usr/jdk/instances/jdk1.6.0/bin/java -Xmx1024m -Djava.awt.headless=true -Djava.
*2nd Question:*
*2. Why are there 2 java version running?*
/usr/java/bin/java -versionjava version "1.5.0_18"
/usr/jdk/instances/jdk1.6.0/bin/java -versionjava version "1.6.0_14"
This is confusiing to me. I'd also like to know what the different command line options mean
Thanks
Edited by: BH80477 on Aug 14, 2009 8:19 AM

Claudia,
We have not yet released a "production" version of OHJ 4.2 because 1) we'd like to add a few more features before calling it production, and 2) OHJ 4.2 has not yet shipped with an Oracle product and therefore hasn't undergone the rigorous testing that takes place on larger Oracle products. If you're concerned about the label of "production" versus "beta," I think you'd be pretty safe going with the latest release of OHJ, or we wouldn't have put it OTN for you to use. The developers have tested thoroughly. :) I'd recommend trying out 4.2.1 since it's got some substantial improvements over the 4.1 branch, and on the off-chance you run into problems, please let us know.
- Ryan

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Hi,
LOOP AT lt_element INTO ls_element.
READ TABLE lt_element_ident INTO ls_element_ident
WITH KEY element_id = ls_element-element_id BINARY SEARCH.
IF sy-subrc EQ 0.
MOVE ls_element_ident-value TO lv_guid.
SELECT * FROM zcm_valuation_at
APPENDING CORRESPONDING FIELDS OF TABLE lt_caseattributes
WHERE case_guid = lv_guid.
ENDIF.
ENDLOOP.
LOOP AT lt_caseattributes INTO ls_caseattributes.
IF ls_caseattributes-ext_key IS INITIAL.
SELECT SINGLE ext_key
INTO CORRESPONDING FIELDS OF ls_caseattributes
FROM scmg_t_case_attr
WHERE case_guid = ls_caseattributes-case_guid.
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*To get the Status description of the Case
SELECT SINGLE stat_ordno_descr
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MODIFY lt_caseattributes FROM ls_caseattributes INDEX sy-tabix TRANSPORTING status ext_key.
ENDLOOP.
READ TABLE lt_caseattributes INTO ls_caseattributes INDEX 1.
Regards,
Maruti

Hi,
try this kind of code:
==================================
start new
DATA:
lt_scmgstatprofst LIKE scmgstatprofst OCCURS 0 WITH HEADER LINE,
wa_scmg_t_case_attr LIKE scmg_t_case_attr.
SELECT * FROM scmgstatprofst INTO TABLE lt_scmgstatprofst.
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LOOP AT lt_element INTO ls_element.
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LOOP AT lt_caseattributes INTO ls_caseattributes.
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*To get the Status description of the Case
start deletion
SELECT SINGLE stat_ordno_descr
INTO ls_caseattributes-status
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INNER JOIN scmg_t_case_attr AS b
ON aprofile_id = bprofile_id
AND astat_orderno = bstat_orderno
WHERE case_guid = ls_caseattributes-case_guid.
end deletion
start new
CLEAR wa_scmg_t_case_attr.
SELECT SINGLE * FROM scmg_t_case_attr INTO wa_scmg_t_case_attr
    WHERE case_guid = ls_caseattributes-case_guid.
READ TABLE lt_scmgstatprofst WITH KEY
    profile_id   = wa_scmg_t_case_attr-profile_id
    stat_orderno = wa_scmg_t_case_attr-stat_orderno
    BINARY SEARCH.
IF sy-subrc IS INITIAL.
    ls_caseattributes-status = lt_scmgstatprofst-stat_ordno_descr.
ENDIF.
end new
MODIFY lt_caseattributes FROM ls_caseattributes INDEX sy-tabix
TRANSPORTING status ext_key.
ENDLOOP.
READ TABLE lt_caseattributes INTO ls_caseattributes INDEX 1.
==================================
Regards
Walter Habich
Edited by: Walter Habich on Jun 17, 2008 8:41 AM

Improving performance for java

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