How to reduce heap size in jvm 1.3.1 ??

Is it possible to force GC to reduce heap size ???
My application uses large maps and after loading one memory allocation looks like this:
[GC 92088K->84997K(105656K)]
If map is not needed I remove it and run Full GC.
Memory is dealocated but the heap size remains the same:
[GC 10088K->8499K(105656K), 0.0026571 secs]
Is any way to reduce it ??? I tried to use incremental GC, it worked in desired way but it is to slow.

Hi,
Did you try to set java min and max to different sizes?
Then you still need a full GC to reduce the heap
because only the full GC compacts memory.
For IBM JRE you will need this to compact anyway.
In general applications perform better with heapmin=max.
-Xmx<size> set maximum Java heap size. example: -Xmx64m
-Xmn<size> set new generation Java heap size. example: -Xmn64m
Different size make it compacter but are more expensive(time)
Do you run Full GC as system.gc()?
I would never do this.
Let the JRE take care of this.
Number 1 GC rule is avoid it.

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TIA

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Hi!
1. The "Control bar" is still something missing and to display the location of the same functions are different depending on the selected tool.
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Hi Monika,
Nice to read you again. Thank you for your response.
Yes, I read. It does not solve the problem about which I write. I guess that solves your opinion? Please hint.

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Hi,
I have canon PIXMA MG2120. I am trying to scan the documents but the size is to big to attach to email. Any Idea how to reduce the size of the PDF file?

Hello
For pdf size,you can compress the pdf size if you want to reduce the size of the pdf files.
Here is the code to do it:
using System.IO;
using System.Drawing.Printing;
using RasterEdge.Imaging;
using RasterEdge.Imaging.Codec.Compression;
using RasterEdge.Imaging.PDF;
DocumentCompression.infile(@"C:\1.pdf");
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How to reduce the size of the query

Hi all,
Can any one suggest me how to reduce the size of the following query .
/* Formatted on 2011/07/12 11:02 (Formatter Plus v4.8.8) */
SELECT prs.pa_rqst_srvc_sid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5031'
AND ped.aaa_segment_loop_nmbr = '2000F') revenue_iid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5013'
AND ped.aaa_segment_loop_nmbr = '2000F') x12_code_list_qlfr_lkpcd,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5026'
AND ped.aaa_segment_loop_nmbr = '2000F') procedure_iid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5027'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5028'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr2_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5029'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr3_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5030'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr4_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5014'
AND ped.aaa_segment_loop_nmbr = '2000F') rqst_prcdr_amt,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5015'
AND ped.aaa_segment_loop_nmbr = '2000F') srvc_line_rate,
'NA' drug_desc, 'NA' product_service_id, 'NA' uom_code,
'NA' rqst_prcdr_units
FROM pa_transaction_request ptr,
input_acknwldgmnt ia,
input_batch_file ibf,
pa_request pr,
pa_request_service prs,
pa_request_procedure prp
WHERE ptr.input_acknwldgmnt_sid = ia.input_acknwldgmnt_sid
AND ia.input_batch_file_sid = ibf.input_batch_file_sid
AND ptr.pa_trnsctn_rqst_sid = pr.pa_trnsctn_rqst_sid
AND pr.pa_rqst_sid = prs.pa_rqst_sid
AND prs.pa_rqst_srvc_sid = prp.pa_rqst_srvc_sid
AND pr.oprtnl_flag = 'A'
AND prs.oprtnl_flag = 'A'
AND ptr.oprtnl_flag = 'A'
AND prp.oprtnl_flag = 'A'
AND prs.rqst_ctgry_lkpcd = 'AR'
AND ibf.original_file_name = 'HIPAA.165760000.20110613I001.278_IRej.dat';
Thanks,
P Prakash

Hi,
Maybe like that, but keep in mind that it is highly untested_ :SELECT
prs.pa_rqst_srvc_sid,
pvt.c5031 revenue_iid,
pvt.c5013 x12_code_list_qlfr_lkpcd,
pvt.c5026 procedure_iid,
pvt.c5027 mdfr_code,
pvt.c5028 mdfr2_code,
pvt.c5029 mdfr3_code,
pvt.c5030 mdfr4_code,
pvt.c5014 rqst_prcdr_amt,
pvt.c5015 srvc_line_rate,
srvc_line_rate,
'NA' drug_desc,
'NA' product_service_id,
'NA' uom_code,
'NA' rqst_prcdr_units
FROM
pa_transaction_request ptr,
input_acknwldgmnt ia,
input_batch_file ibf,
pa_request pr,
pa_request_service prs,
pa_request_procedure prp,
    SELECT
      prpre.pa_rqst_prcdr_sid,
      MAX(DECODE(pa_error_nmbr,'5013',prpre.erroneous_data_value,NULL)) c5013,
      MAX(DECODE(pa_error_nmbr,'5014',prpre.erroneous_data_value,NULL)) c5014,
      MAX(DECODE(pa_error_nmbr,'5015',prpre.erroneous_data_value,NULL)) c5015,
      MAX(DECODE(pa_error_nmbr,'5026',prpre.erroneous_data_value,NULL)) c5026,
      MAX(DECODE(pa_error_nmbr,'5027',prpre.erroneous_data_value,NULL)) c5027,
      MAX(DECODE(pa_error_nmbr,'5028',prpre.erroneous_data_value,NULL)) c5028,
      MAX(DECODE(pa_error_nmbr,'5029',prpre.erroneous_data_value,NULL)) c5029,
      MAX(DECODE(pa_error_nmbr,'5030',prpre.erroneous_data_value,NULL)) c5030,
      MAX(DECODE(pa_error_nmbr,'5031',prpre.erroneous_data_value,NULL)) c5031
    FROM
      pa_error pe,
      pa_error_detail ped,
      pa_request_procedure_run_error prpre
    WHERE
      pe.pa_error_sid     = ped.pa_error_sid
    AND ped.pa_error_sid = prpre.pa_error_sid
    AND ped.oprtnl_flag   = 'A'
    AND prpre.oprtnl_flag = 'A'
    AND pe.pa_error_nmbr IN ('5013','5014','5015','5026','5027','5028','5029',
      '5030','5031')
    AND ped.aaa_segment_loop_nmbr = '2000F'
    GROUP BY
      prpre.pa_rqst_prcdr_sid
pvt
WHERE
pvt.pa_rqst_prcdr_sid       = prp.pa_rqst_prcdr_sid
AND ptr.input_acknwldgmnt_sid = ia.input_acknwldgmnt_sid
AND ia.input_batch_file_sid   = ibf.input_batch_file_sid
AND ptr.pa_trnsctn_rqst_sid   = pr.pa_trnsctn_rqst_sid
AND pr.pa_rqst_sid            = prs.pa_rqst_sid
AND prs.pa_rqst_srvc_sid      = prp.pa_rqst_srvc_sid
AND pr.oprtnl_flag            = 'A'
AND prs.oprtnl_flag           = 'A'
AND ptr.oprtnl_flag           = 'A'
AND prp.oprtnl_flag           = 'A'
AND prs.rqst_ctgry_lkpcd      = 'AR'
AND ibf.original_file_name    = 'HIPAA.165760000.20110613I001.278_IRej.dat';Edited by: Nicosa on Jul 12, 2011 2:20 PM
Corrected columns aliases in outer query :
- c5031 instead of 5031
- c5013 instead of 5013

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Hi,
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How to reduce the size of cloned Oracle applications instance, so as to save the storage space for the cloned systems.
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mumbai,
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Just my 0.02£
Yury
Check this out:
A.
http://www.freelists.org/archives/ora-apps-dba/05-2006/msg00000.html
B.
- Users can subscribe to your list by sending email to
ora-apps-dba-request_at_freelists.org with 'subscribe' in the Subject field
C.
http://www.freelists.org/archives/ora-apps-dba/05-2006/threads.html

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How to increase heap size in java code, not using "java -Xms64m "

Im writing a java programme for loading the german dictionary. my dictionary is very huge(around 300000+ words).
while loading the dictioanry im getting error "OutOfMemoryError" .
I found one solution to increase the heap size, but i want to increase the heap size in java programmer itself, not outside jar file. so i could not use "-Xms64m" option of jvm.
Can anyone tell me how can i do this

sunlover1984 wrote:
Im writing a java programme for loading the german dictionary. my dictionary is very huge(around 300000+ words).
while loading the dictioanry im getting error "OutOfMemoryError" .
I found one solution to increase the heap size, but i want to increase the heap size in java programmer itself, not outside jar file. so i could not use "-Xms64m" option of jvm.
Can anyone tell me how can i do thisThat option is a startup option for the JVM. That means if your jar is already loaded then you are already too late to try and call it.

How to reduce heap size in jvm 1.3.1 ??

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