Oracle 10g, how to determine allocated memory is healthy or sufficient.

Hi Guys,
I have a 10.2.0.5 production database.
Currently my server has 8GB physical RAM.
3GB is allocated to the SGA and 1GB to the PGA.
Let's say one day there is a requirement from application (eg, weblogic) to increase connection pool from 20 to 50.
How are we able to know whether the memory allocated is sufficient for existing load and also the increased load?
CPU is quite straightfoward as we can generate out the cpu utilization. If utilization is low, i supposed is quite safe to increase the connection.
Kindly share ur experiences tackling such situation.
thanks

Chewy wrote:
Hi Guys,
I have a 10.2.0.5 production database.
Currently my server has 8GB physical RAM.
3GB is allocated to the SGA and 1GB to the PGA.
Let's say one day there is a requirement from application (eg, weblogic) to increase connection pool from 20 to 50.
How are we able to know whether the memory allocated is sufficient for existing load and also the increased load?
CPU is quite straightfoward as we can generate out the cpu utilization. If utilization is low, i supposed is quite safe to increase the connection.
Kindly share ur experiences tackling such situation.
thankswhat OS name & version?
is OS 32 or 64 bit?
is Oracle 32 or 64 bit?
How do you know the current RAM allocation is adequate or optimal?

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X_ACC_ASSETS_GPC_AGG_RK NUMBER(10) NOT NULL,
X_AS_OF_DT DATE NOT NULL,
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NOLOGGING
NOCOMPRESS
TABLESPACE KAW_DATA
PCTFREE 10
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MAXTRANS 255
STORAGE (
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MAXEXTENTS 2147483645
BUFFER_POOL DEFAULT
PARTITION PMAX
NOLOGGING
NOCOMPRESS
TABLESPACE KAW_DATA
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
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MINEXTENTS 1
MAXEXTENTS 2147483645
BUFFER_POOL DEFAULT
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2) Can I add partition even though the table has data ?
==========================
I tried to add partition ..say
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200912
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Edited by: pransuj on Mar 25, 2011 11:14 AM

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>
>
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Shish
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.util.Date;
import javax.swing.*;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
public class MemoryMonitor extends JPanel {
    static JCheckBox dateStampCB = new JCheckBox("Output Date Stamp");
    public Surface surf;
    JPanel controls;
    boolean doControls;
    JTextField tf;
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        setBorder(new TitledBorder(new EtchedBorder(), "Memory Monitor"));
        add(surf = new Surface());
        controls = new JPanel();
        controls.setPreferredSize(new Dimension(135,80));
        Font font = new Font("serif", Font.PLAIN, 10);
        JLabel label = new JLabel("Sample Rate");
        label.setFont(font);
        label.setForeground(Color.black);
        controls.add(label);
        tf = new JTextField("1000");
        tf.setPreferredSize(new Dimension(45,20));
        controls.add(tf);
        controls.add(label = new JLabel("ms"));
        label.setFont(font);
        label.setForeground(Color.black);
        controls.add(dateStampCB);
        dateStampCB.setFont(font);
        addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
               removeAll();
               if ((doControls = !doControls)) {
                   surf.stop();
                   add(controls);
               } else {
                   try {
                       surf.sleepAmount = Long.parseLong(tf.getText().trim());
                   } catch (Exception ex) {note.alert(ex);}
                   surf.start();
                   add(surf);
               validate();
               repaint();
    public void start() {
     surf.start();
    public class Surface extends JPanel implements Runnable {
        public Thread thread;
        public long sleepAmount = 1000;
        private int w, h;
        private BufferedImage bimg;
        private Graphics2D big;
        private Font font = new Font("Times New Roman", Font.PLAIN, 11);
        private Runtime r = Runtime.getRuntime();
        private int columnInc;
        private int pts[];
        private int ptNum;
        private int ascent, descent;
        private float freeMemory, totalMemory;
        private Rectangle graphOutlineRect = new Rectangle();
        private Rectangle2D mfRect = new Rectangle2D.Float();
        private Rectangle2D muRect = new Rectangle2D.Float();
        private Line2D graphLine = new Line2D.Float();
        private Color graphColor = new Color(46, 139, 87);
        private Color mfColor = new Color(0, 100, 0);
        private String usedStr;
        public Surface() {
            setBackground(Color.black);
            addMouseListener(new MouseAdapter() {
                public void mouseClicked(MouseEvent e) {
                    if (thread == null) start(); else stop();
        public Dimension getMinimumSize() {
            return getPreferredSize();
        public Dimension getMaximumSize() {
            return getPreferredSize();
        public Dimension getPreferredSize() {
            return new Dimension(135,80);
        public void paint(Graphics g) {
            if (big == null) {
                return;
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            float totalMemory = (float) r.totalMemory();
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            big.setColor(Color.green);
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            float ssH = ascent + descent;
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            float blockWidth = 20.0f;
            float remainingWidth = (float) (w - blockWidth - 10);
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            big.setColor(mfColor);
            int MemUsage = (int) ((freeMemory / totalMemory) * 10);
            int i = 0;
            for ( ; i < MemUsage ; i++) {
                mfRect.setRect(5,(float) ssH+i*blockHeight,
                                blockWidth,(float) blockHeight-1);
                big.fill(mfRect);
            // .. Memory Used ..
            big.setColor(Color.green);
            for ( ; i < 10; i++) {
                muRect.setRect(5,(float) ssH+i*blockHeight,
                                blockWidth,(float) blockHeight-1);
                big.fill(muRect);
            // .. Draw History Graph ..
            big.setColor(graphColor);
            int graphX = 30;
            int graphY = (int) ssH;
            int graphW = w - graphX - 5;
            int graphH = (int) remainingHeight;
            graphOutlineRect.setRect(graphX, graphY, graphW, graphH);
            big.draw(graphOutlineRect);
            int graphRow = graphH/10;
            // .. Draw row ..
            for (int j = graphY; j <= graphH+graphY; j += graphRow) {
                graphLine.setLine(graphX,j,graphX+graphW,j);
                big.draw(graphLine);
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            int graphColumn = graphW/15;
            if (columnInc == 0) {
                columnInc = graphColumn;
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                graphLine.setLine(j,graphY,j,graphY+graphH);
                big.draw(graphLine);
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                pts = new int[graphW];
                ptNum = 0;
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                } else {
                    tmp = new int[graphW];
                    System.arraycopy(pts, pts.length-tmp.length, tmp, 0, tmp.length);
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                pts = new int[graphW];
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                big.setColor(Color.yellow);
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Oracle 10G query

I have following queries to be solved please help me out....
1) Difference / Limitation of Oracle Standard Edition / Enterprise Edition 10..... latest ?
2) Can Data of Oracle 8. ..... Expo File will be Imported to 10....... latest ?
If not than what steps we have to take. Basically I would like my current DB of 8 to be moved to 10G
3) From which AIX Ver Oracle 10 ...... is Supported ?
4) if the customer has 8... Ver Lic When if goes for New Ver than media will have full Ver or only Upgrade files. ?
5) If the Customer has Old ver Lic and he goes for upgrade Lic Than we have to first Install Old Lic Ver & than Upgrade or directly we can load Latest Lic Ver on New Server and work. ? What I mean is if I have to go ahead from Oracle 8 to Oracle 10G how should I go about.
6) Is Oracle Media ver Compatible for Aix ?
7) Oracle Lic Policy / Product Information Web Link ?
Thanks & Regards
Shivanand S S

This is a perfectly valid way to query the data. Here's an example on my own production tables. This one has about 300 million rows:
select *
from   prod.tran_history
where tran_date >= to_date(add_months(sysdate, -2))
| Id | Operation                   | Name                        | Rows | Bytes | Cost |
|   0 | SELECT STATEMENT            |                              |    11M|   863M|   146K|
|   1 | TABLE ACCESS BY INDEX ROWID| TRAN_HISTORY                 |    11M|   863M|   146K|
|* 2 |   INDEX RANGE SCAN          | TRAN_HIST_DATE_IDX           | 2144K|       | 2098 |
--------------------------------------------------------------------------------------------

Oracle 10g, how to determine allocated memory is healthy or sufficient.

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