Question on the JRockit Heap diagnostics information

Using the JRCMD, collected the JRockit Heap diagnostics data. Below is the output:
--------- Detailed Heap Statistics: ---------
69.5% 1240837k 316026 +1240837k [B
8.5% 133278k 1562216 +133278k [C
What does [B and [C stand for?
what process is occupying this much of memory? What is B and C?

That's a good question.
It's a user unfriendly way to say to byte and character arrays ;) It should be changed.
From the VM spec:
B byte
C char
D double
F float
I int
J long
L<classname>; reference an instance of class <classname>
S short
Z boolean
[ one dimension array

Similar Messages

Capturing the JVM heap usage information to a log

When using weblogic 6.1sp3 the console under monitoring/performance a graph is
displayed with the historical JVM heap usage information. Is there any way to
capture this information to a log?

For heap size before and after each gc, you could pass the -verbose:gc option to the JVM
on startup:
WLS C:\alex>java -verbose:gc weblogic.Admin PING 10 10
[GC 512K->154K(1984K), 0.0068905 secs]
[GC 666K->164K(1984K), 0.0069037 secs]
[GC 676K->329K(1984K), 0.0029822 secs]
[GC 841K->451K(1984K), 0.0038960 secs]
[GC 963K->500K(1984K), 0.0015452 secs]
[GC 1012K->598K(1984K), 0.0027509 secs]
[GC 1110K->608K(1984K), 0.0029370 secs]
[GC 1120K->754K(1984K), 0.0027361 secs]
[GC 1266K->791K(1984K), 0.0019639 secs]
[GC 1303K->869K(1984K), 0.0028314 secs]
[GC 1381K->859K(1984K), 0.0012957 secs]
[GC 1367K->867K(1984K), 0.0012504 secs]
[GC 1379K->879K(1984K), 0.0018592 secs]
[GC 1391K->941K(1984K), 0.0036871 secs]
[GC 1453K->988K(1984K), 0.0027143 secs]
Sending 10 pings of 10 bytes.
RTT = ~47 milliseconds, or ~4 milliseconds/packet
Looks like it might be too much info though...
Cheerio,
-alex
Fazle Khan wrote:
When using weblogic 6.1sp3 the console under monitoring/performance a graph is
displayed with the historical JVM heap usage information. Is there any way to
capture this information to a log?

HT204347 Thanks, the write-up was informative, But it do not answer for my question, that is where to look for serial # on my Macbook Pro Mid 2010 White Unibody Core 2 Duo 2.4 GHz 13.3"? Its not on bottom-case and the above article does not mention this m

Thanks, the write-up was informative, But it do not answer for my question, that is where to look for serial # on my Macbook Pro Mid 2010 White Unibody Core 2 Duo 2.4 GHz 13.3"? Its not on bottom-case and the above article does not mention this model?

Click on the Apple and then on about this Mac. In the new window, click on the "version 10.9.2" until you see the serial number displayed.

What do I do if I'm trying to reset my security questions but the link "send reset security information email to [rescue email address] isn't there on the screen? I need to click the link but it's not on the screen.

Trying to rest my security questions but the link isn't there

You need to ask Apple to reset your security questions. To do this, click here and pick a method; if that page doesn't list one for your country or you're unable to call, fill out and submit this form.
(118868)

SFP Detail Diagnostics Information Nexus 7000

Hello guys,
I have a question about why one port on a Nexus 7000 with a N7K-M132XP-12 (32 port 10G card) doesn't show any values
when looking at "show inter e 9/27 transceiver details", all values are just zero.
N7K# show inter e 9/27 transceiver details
Ethernet9/27
transceiver is present
type is 10Gbase-SR
name is CISCO-EXCELIGHT
part number is SPP5101SR-C1
revision is A
serial number is EXX13050136
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is --
cisco extended id number is 4
number of lanes 1
SFP Detail Diagnostics Information (internal calibration)
Current Alarms Warnings
Measurement High Low High Low
Temperature N/A 0.00 C 0.00 C 0.00 C 0.00 C
Voltage N/A 0.00 V 0.00 V 0.00 V 0.00 V
Current N/A 0.00 mA 0.00 mA 0.00 mA 0.00 mA
Tx Power N/A 0.00 dBm 0.00 dBm 0.00 dBm 0.00 dBm
Rx Power N/A 0.00 dBm 0.00 dBm 0.00 dBm 0.00 dBm
Transmit Fault Count = 2
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
Tried to remove the SFT+ and inserted a new, but same results, all values are 0.
Does anyone know why it doesn't show any values?
We are runing version 6.2(8)
And here's the port configuration:
interface Ethernet9/27
switchport
switchport mode trunk
spanning-tree port type edge trunk

You are correct. There isn't any option for seeing the hit count on the prefix-list on the Nexus series.
HTH

A question about the impact of SQL*PLUS SERVEROUTPUT option on v$sql

Hello everybody,
SQL> SELECT * FROM v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
SQL>
OS : Fedora Core 17 (X86_64) Kernel 3.6.6-1.fc17.x86_64I would like to ask a question about the SQL*Plus SET SERVEROUTPUT ON/OFF option and its impact on queries on views such as v$sql and v$session. Here is the problem
Actually I define three variables in SQL*Plus in order to store sid, serial# and prev_sql_id columns from v$session in order to be able to use them later, several times in different other queries, while I'm still working in the current session.
So, here is how I proceed
SET SERVEROUTPUT ON; -- I often activate this option as the first line of almost all of my SQL-PL/SQL script files
SET SQLBLANKLINES ON;
VARIABLE mysid NUMBER
VARIABLE myserial# NUMBER;
VARIABLE saved_sql_id VARCHAR2(13);
-- So first I store sid and serial# for the current session
BEGIN
    SELECT sid, serial# INTO :mysid, :myserial#
    FROM v$session
    WHERE audsid = SYS_CONTEXT('UserEnv', 'SessionId');
END;
PL/SQL procedure successfully completed.
-- Just check to see the result
SQL> SELECT :mysid, :myserial# FROM DUAL;
    :MYSID :MYSERIAL#
       129   1067
SQL> Now, let's say that I want to run the following query as the last SQL statement run within my current session
SELECT * FROM employees WHERE salary >= 2800 AND ROWNUM <= 10;According to Oracle® Database Reference 11g Release 2 (11.2) description for v$session
http://docs.oracle.com/cd/E11882_01/server.112/e25513/dynviews_3016.htm#REFRN30223]
the column prev_sql_id includes the sql_id of the last sql statement executed for the given sid and serial# which in the case of my example, it will be the above mentioned SELECT query on the employees table. As a result, right after the SELECT statement on the employees table I run the following
BEGIN
    SELECT prev_sql_id INTO :saved_sql_id
    FROM v$session
    WHERE sid = :mysid AND serial# = :myserial#;
END;
PL/SQL procedure successfully completed.
SQL> SELECT :saved_sql_id FROM DUAL;
:SAVED_SQL_ID
9babjv8yq8ru3
SQL> Having the value of sql_id, I'm supposed to find all information about cursor(s) for my SELECT statement and also its sql_text value in v$sql. Yet here is what I get when I query v$sql upon the stored sql_id
SELECT child_number, sql_id, sql_text
FROM v$sql
WHERE sql_id = :saved_sql_id;
CHILD_NUMBER   SQL_ID          SQL_TEXT
0              9babjv8yq8ru3    BEGIN DBMS_OUTPUT.GET_LINES(:LINES, :NUMLINES); END;Therefore instead of
SELECT * FROM employees WHERE salary >= 2800 AND ROWNUM <= 10;for the value of sql_text I get the following value
BEGIN DBMS_OUTPUT.GET_LINES(:LINES, :NUMLINES);Which is not of course what I was expecting to find in v$sql for the given sql_id.
After a bit googling I found the following thread on the OTN forum where it had been suggested (well I think maybe not exactly for the same problem) to turn off SERVEROUTPUT.
Problem with dbms_xplan.display_cursor
This was precisely what I did
SET SERVEROUTPUT OFFafter that I repeated the whole procedure and this time everything worked pretty well as expected. I checked SQL*Plus documentation for SERVEROUTPUT
and also v$session page, yet I didn't find anything indicating that SERVEROUTPUT should be switched off whenever views such as v$sql, v$session
are queired. I don't really understand the link in terms of impact that one can have on the other or better to say rather, why there is an impact
Could anyone kindly make some clarification?
thanks in advance,
Regards,
Dariyoosh

>
and also v$session page, yet I didn't find anything indicating that SERVEROUTPUT should be switched off whenever views such as v$sql, v$session
are queired. I don't really understand the link in terms of impact that one can have on the other or better to say rather, why there is an impact
Hi Dariyoosh,
SET SERVEROUTPUT ON has the effect of executing dbms_output.get_lines after each and every statement. Not only related to system view.
Here below what Tom Kyte is explaining in this page:
Now, sqlplus sees this functionality and says "hey, would not it be nice for me to dump this buffer to screen for the user?". So, they added the SQLPlus command "set serveroutput on" which does two things
1) it tells SQLPLUS you would like it <b>to execute dbms_output.get_lines after each and every statement</b>. You would like it to do this network rounding after each call. You would like this extra overhead to take place (think of an install script with hundreds/thousands of statements to be executed -- perhaps, just perhaps you don't want this extra call after every call)
2) SQLPLUS automatically calls the dbms_output API "enable" to turn on the buffering that happens in the package.Regards.
Al

Questions on the very basics of setup

I'm helping a "friend" setup his MacBook Pro (a likely story, I know). he has an AirPort Extreme and wants to connect to the internet using his DSL box. All the cables are correctly connected, I believe. Went through the procedure of using the AirPort Setup Assistant (creating network i.d., password, etc.). When we click "connect", the left AirPort light flashes periodically as it's supposed to, but we get the following message after a few moments:
"could not find a PPPoE server"
I presume that means that we need to install the DSL software on the machine. Is that correct? Should this be an "easy" fix or do I have to consider other things in order to get to the internet?
I do apologize if this is a re-run question, but I didn't see it in the forum. Thanks for any guidance or reference to other links in the forum.....

Just as a hunch, and I'm new to this support site as well, but I'd go check out the Airport Forums, and see if there is this info in there already. That being said, from what I understand and have experienced, some adsl modems work in dummy mode, where the router/airport device actually prompts the information through it, and some have their own dhcp server with all that username/password,ect, stuff in there. One thing you may have to do is connect the modem directly to your ethernet port on your computer, and go into your webbrowser and type "192.168.1.1" into the address bar and press enter, this should give you your dsl modems configuration page, from there you'll have to figure out which option you can go with. What i've seen a few times is a modem that has to have the username and password setup, and also has basic network configuration, and then a router, which has to be setup for dhcp as well, with no username and password info involved. What makes this more confusing, is sometimes both the router and the modem are set to use the same default address for themselves. Try checking out the documentation on both the airport, and whatever information you can glean from your isp about your modem. If this all sounds like nonsense to you, I'd just check into paying your isp to send someone to set it up, or some other knowledgeable networking tech. Good luck

Some questions about the integration between BIEE and EBS

Hi, dear,
I'm a new bie of BIEE. In these days, have a look about BIEE architecture and the BIEE components. In the next project, there are some work about BIEE development based on EBS application. I have some questions about the integration :
1) generally, is the BIEE database and application server decentralized with EBS database and application? Both BIEE 10g and 11g version can be integrated with EBS R12?
2) In BIEE administrator tool, the first step is to create physical tables. if the source appliation is EBS, is it still needed to create the physical tables?
3) if the physical tables creation is needed, how to complete the data transfer from the EBS source tables to BIEE physical tables? which ETL tool is prefer for most developers? warehouse builder or Oracle Data Integration?
4) During data transfer phase, if there are many many large volume data needs to transfer, how to keep the completeness? for example, it needs to transfer 1 million rows from source database to BIEE physical tables, when 50%is completed, the users try to open the BIEE report, can they see the new 50% data on the reports? is there some transaction control in ETL phase?
could anyone give some guide for me? I'm very appreciated if you can also give any other information.
Thanks in advance.

1) generally, is the BIEE database and application server decentralized with EBS database and application? Both BIEE 10g and 11g version can be integrated with EBS R12?You, shud consider OBI Application here which uses OBIEE as a reporting tool with different pre-built modules. Both 10g & 11g comes with different versions of BI apps which supports sources like Siebel CRM, EBS, Peoplesoft, JD Edwards etc..
2) In BIEE administrator tool, the first step is to create physical tables. if the source appliation is EBS, is it still needed to create the physical tables?Its independent of any soure. This is OBIEE modeling to create RPD with all the layers. If you build it from scratch then you will require to create all the layers else if BI Apps is used then you will get pre-built RPD along with other pre-built components.
3) if the physical tables creation is needed, how to complete the data transfer from the EBS source tables to BIEE physical tables? which ETL tool is prefer for most developers? warehouse builder or Oracle Data Integration?BI apps comes with pre-built ETL mapping to use with the tools majorly with Informatica. Only BI Apps 7.9.5.2 comes with ODI but oracle has plans to have only ODI for any further releases.
4) During data transfer phase, if there are many many large volume data needs to transfer, how to keep the completeness? for example, it needs to transfer 1 million rows from source database to BIEE physical tables, when 50%is completed, the users try to open the BIEE report, can they see the new 50% data on the reports? is there some transaction control in ETL phase?User will still see old data because its good to turn on Cache and purge it after every load.
Refer..http://www.oracle.com/us/solutions/ent-performance-bi/bi-applications-066544.html
and many more docs on google
Hope this helps

I forgot my iCloud security question, also the email address I registed. How can I remove unconfirmed iCloud iD on my Ipad Air (iOS 7)?

When I first set up my grandpa new Ipad Air. I registed an iD-based his name like t•••••••••••@******but in reality such gmail did exsist and I do not know. I was confident that I remember the password so I can change the email later. But now, I forgot all the password, also the security question's answer. So, how can I remove the unconfirmed iCloud account on my device?
<Edited by Host>

Hi Noisyzbeez,
Welcome to the Apple Support Communities!
You would need to know the password to the Apple ID set up on the device to remove it from the iCloud settings. The attached article has information on resetting the password via email or security questions. If you are unable to change the password after attempting these two ways, which it sounds like you are, there is also a link towards the bottom of the article to contact Apple Support.
If you forgot your Apple ID password
Regards,
Joe

How to add a role description to the Role Library:Role Information Column

Hi to all,
I have an interesting question.I have a task to show a role description in the role sorting table information column.Is there any way to get this parameter ?
I tried with waveset.roleinfos.info.description but nothing happened.I saw that in some forms is used waveset.availableRoleInfos[$(rolename)].info.description, but i can not understand what is this parameter actualy for and from where it comes (and i did not get anything from it either when i tried with it).
So my question is is there any way i can add this description attribute to the Information role column ?

Hi Mariana,
one way is to use the role upload if you want to use existing BI roles in Portal:
Here are more infos: http://help.sap.com/saphelp_nw04s/Helpdata/EN/9d/8c174082fe1961e10000000a155106/frameset.htm
Regards,
Adem

How to find out what is using the native heap of a process running a JVM?

Hello,
I am not sure where to post this question so I am starting here.
I am troubleshooting a Java application using some native calls (32 bits Java running on Solaris 10). The size of the process (as reported by prstat) is slowly increasing day after day.
The size of the 'Java heap' is fixed at the start (-Xms and -Xmx are set to the same value on the command line when launching the Java app) and the GC is workling fine. No memory complaints from the Java side of the application.
It is the size of the 'native' heap (as reported by 'pmap') that is increasing:
root@mas01 # pmap 5382
5382:/apps/java/bin/java -server -Xms207M -Xmx207M -XX:MaxNewSize=24M -XX:N
00010000 64K r-x-- /apps/jdk1.5.0_19/bin/java
0002E000 16K rwx-- /apps/jdk1.5.0_19/bin/java
00032000 3896K rwx-- [ heap ]
00400000 389120K rwx-- [ heap ]
18000000 2784K rwx-- [ heap ]
DCAF4000 48K rw--R [ stack tid=169 ]
DCBF6000 40K rw--R [ stack tid=161 ]
DCCF8000 32K rw--R [ stack tid=160 ]
My first reaction was to search for a memory leak. Found a minor leak in the JVM with the ::findleak function (called within the mdb debugger). Upgraded to a later release of Java 5 (Java 1.5.0_19) where the leak is fixed but the heap is still increasing.
Many parts of the process allocate memory in the native heap. The JVM itself, the native calls made to a C++ library part of our Java application and maybe also some 3rd party software.
I would like to know what is the best way to find out what is consuming more and more memory in the native heap. I started looking a DTraces but I am new to this. I also thought maybe the Solaris Perftools might be of use but I never used them. Before plunging into a tool more or less blindly, I am asking for advices on how to tackle this issue. Can someone recommend a tool/method to see what is allocated in the heap?
Regards,
Stéphan
Edited by: StephanDupont on Sep 22, 2009 8:47 AM

After googling a lot I managed to run my application with libumem, generated a core file and succeeded to find some leak with mdb even if ::findleak reported nothing.
Does anyone knows if the ::findleak (you need libumem and mdb) is supposed to find leak in the native part of the memory and a Java application using the JNI interface?
Regards,
Stéphan

How to get the addition DML Error information when using PL/SQL?

Given the following statements:
drop table bob;
create table bob
col1 number(6,2),
col2 number(6,2) not null
insert into bob(col1, col2) values (123.12, null);
insert into bob(col1, col2) values (123.12, 12345.12);
commit;
I get different behavior from Oracle error messages.
Here is the sample output:
Table dropped.
Table created.
insert into bob(col1, col2) values (123.12, null)
ERROR at line 1:
ORA-01400: cannot insert NULL into ("BOB"."COL2")
insert into bob(col1, col2) values (123.12, 12345.12)
ERROR at line 1:
ORA-01438: value larger than specified precision allows for this column
Commit complete.
Note that in the first error (1400) the generated error message contains the name of the problematic column ("BOB"."COL2"). Also note that in the regurgitated statement the error pointer (*) is at the far left. In this case, the regurgitated statement is of no use to me because the error message identifies the culprit column.
However, in the second error (1438) the generated error message is very generic and does NOT indicate the problematic column. In addition, in this case the error pointer (*) of the regurgitated statement has moved to point to the troublesome column. In this case, I must use BOTH the error message and the regurgitated statement to completely understand the problem.
This difference in how error messages are constructed causes difficulty within PL/SQL. If PL/SQL happens to generate a 1400 error message, then simply capturing the error message and giving it to the user provides enough information for him/her to solve the problem. However, if a 1438 error is generated then the resulting error message has insufficient information for the user to pursue the problem.
So my question is, within PL/SQL do you know how to get your hands on Oracle's regurgitated statements so that they can be presented to the user to assisted him/her in problem resolution?
Thanks.

I don't think it's that easy. Notice that if you put the insert into an actual pl/sql block, you don't get the correct column pointer anymore.
BEGIN insert into bob(col1, col2) values (123.12, 12345.12); END;
ERROR at line 1:
ORA-01438: value larger than specified precision allows for this column
ORA-06512: at line 1
Richard

Can you alter the JVM heap space size for all Windows users?

Hi,
I have used the "-Xmx" option to increase the Java Heap space for my Java application. This works fine, but all other users on my system still have the default heap space setting and I want them to have use an increased heap space as well. I cannot alter the JVM heap space at the command line since our Java application is started via an ActiveX bridge from a Windows application.
So far I have found one potential, but not really good solution; I have figured out that I can copy the deployment.properties file containing the altered JVM heap setting from the "Application Data\Sun\Java\Deployment" folder in my own Windows "Documents and Settings" folder to the same folder of another user. However, this is not a really good solution since we are running a system with about 60 users and often new user accounts are created and sometimes people forget to copy the deployment.properties file.
Does anyone know a better solution. I've tried to search the Windows registry or the JRE files for a default JVM heap space setting but I can't find it anywhere. Still on some systems the default is 64Mb and on others 96Mb, so I guess there must be a setting somewhere?

The following is my eclipse.ini:
-vmargs
-Xms256m
-Xmx512m
-Dfuego.fstudio=true
-DprodMode=preProduction
-Dbea.home=C:\bea\albpm6.0\studio\..
-Djava.endorsed.dirs=""
-XX:PermSize=256M
-XX:MaxNewSize=256M
-XX:MaxPermSize=1024M
but i think this configuration just effect the eclipse, not embed bpm engine. I also change the engine preference, increase the heap size, but engine crash as before.
I want to change the jvm from jdk to jrockit, i hope any suggest.

The question about the sharepoint server 2010 install

Hi Friends,
i have a question about the sharepoint server 2010 install.
my computer is used the windows server 2008 service pack 1. in order to install the sharepoint 2010 server, i need to choose to windows server 2008 service pack 2. my question is when i install the windows server 2008 service pack 2,whether the inside
of my computer information will be lost or change?
thank you in advance.
Qearl

Hi ,
No data will be lost either from your Windows program files or other drives as long as it is an upgrade.
After upgrade you will still be able to see your old program files under windows.ol folder in the C: Drive of the new OS.
The data will be lost only when you perform a clean install like complete formatting the HArd disk and installing from scratch.
As mentioned it always good to maintain a backup preferable important files in a skydrive as there is a good chance of external drives crashing.

Comprehensible question regarding the usage of a ccBPM in SAP PI 7.31

Hello experts,
I have got basic question about the useage of ccBPM in PI 7.31 double Stack. I haven't created any ccBPM before so the whole set up process is new for me. We are currently using several ccBPM already which where created by our colleagues.
I just have a question about the basic of work of a ccBPM and if the designed process can be realised at all.
The current process should be implemented, starting from the erp system with a trigger report (left side). All the offered function are provided by the called system (right side)
So can this whole process can be realised using ccBPM, so that after the trigger report is called the rest of the process is handled within the pi? The process checkStatus needs to be called within a loop and at the end the generated File should be stored on the file system.
Thanks in advance for clearing my thoughts on this problem guys!
regards
Christian

Hello Christian,
is this a 1-1 correlation? So you have just one sender system and one target system? It might be better then to implement the flow in your sender system and only call single interfaces on PI. While it is technically possible to do everything in PI there is no real added value to do so. BPM is most benefitial when you need to aggregate information from different sources and when the process contains decisions that lead to alternative process steps.
Regards,
Jörg

Question on the JRockit Heap diagnostics information

Similar Messages

Maybe you are looking for