Process SERVER0 its taking High CPU Time in XI
Hi,
We installed XI 3.0 develpoment server ,Process <b>SERVER0</b> its taking more CPU time.
We are using AS/400 OS & DB2 datbase.Can any one tell me the reason & Solution for this.
Thanks & Regards,
Gopinath.
hi,
Actually the user XIRWBUSER its an RFC user but its running on many dialog process.I think high CPU time due to this user only.
using 5 work processes and 3/4 of the available CPU for an extended amount of time.
Total Total DB
Job or CPU Sync Async CPU
Task User Number Thread Pty Util I/O I/O Util
WP11 D6464 485368 00000010 20 54.0 25 37 27.8
WP05 X4242 498642 00000098 20 49.6 5 0 36.7
WP04 X4242 498641 00000014 20 48.8 1 0 39.1
WP02 X4242 498639 0000025A 20 47.1 2 0 37.8
WP06 X4242 498643 000001E6 20 43.7 0 0 38.3
WP00 X4242 498637 00000014 20 11.1 502 194 2.9
pls can any one help me
Regards,
Gopinath.
Similar Messages
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Hi
Our environment is having SCOM 2007 R2.
I want to get the details of processes taking high CPU,memory in windows server 2003 , 2008. These details are stored in Opsmgr DatawareHouse ? , can I get in the form of reports? OR any script available.Please help.
Regards
MadhaviHi Madhavi,
Run this script on a server and you will get the individual process utilization. I am not sure how you exactly need this.
strComputer = "localhost"
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" _
& strComputer & "\root\cimv2")
Set colProcesses = objWMIService.ExecQuery _
("Select * from Win32_Process")
For Each objProcess in colProcesses
Wscript.Echo "Process: " & objProcess.Name
sngProcessTime = (CSng(objProcess.KernelModeTime) + _
CSng(objProcess.UserModeTime)) / 10000000
Wscript.Echo "Processor Time: " & sngProcessTime
Wscript.Echo "Process ID: " & objProcess.ProcessID
Wscript.Echo "Working Set Size: " _
& objProcess.WorkingSetSize
Wscript.Echo "Page File Size: " _
& objProcess.PageFileUsage
Wscript.Echo "Page Faults: " & objProcess.PageFaults
Next
Let me know if this helps
Regards, Dhanraj -
Oracle internal queries taking more CPU time
Hi,
Following are queries taking more CPU time. I got this from awr report. Can anyone tell me why these queries are running? Is it a oracle enterprise manager query? should I use
emctl stop dbconsole to stop this?
DECLARE job BINARY_INTEGER := :job; next_date DATE := :mydate; broken BOOLEAN := FALSE; BEGIN EMD_MAINTENANCE.EXECUTE_EM_DBMS_JOB_PROCS(); :mydate := next_date; IF broken THEN :b := 1; ELSE :b := 0; END IF; END;
SELECT COUNT(*) FROM MGMT_METRIC_DEPENDENCY_DETAILS DEP, MGMT_SEVERITY SEV WHERE DEP.TARGET_GUID = :B5 AND DEP.METRIC_GUID = :B4 AND DEP.KEY_VALUE = :B3 AND DEP.EDEP_TARGET_GUID = SEV.TARGET_GUID AND DEP.EDEP_METRIC_GUID = SEV.METRIC_GUID AND DEP.DEP_KEY_VALUE = SEV.KEY_VALUE AND SEV.COLLECTION_TIMESTAMP BETWEEN :B2 AND :B1
SELECT CURRENT_STATUS FROM MGMT_CURRENT_AVAILABILITY WHERE TARGET_GUID = :B1
Thanks in advance
With Regards
boobathi.PHi,
maybe this document will help if you are using 10g:
SQL run by SYSMAN consuming a lot of resources on OMS with 800+ targets [ID 330383.1]
https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=PROBLEM&id=330383.1
there you'll find Cause and Solution too:
SYSMAN Job and Queries are Taking Up High CPU (DB Console) [ID 1288301.1]
https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=PROBLEM&id=1288301.1
For databases above version 11.1 there are paches available.
Best,
Michael T. Z. -
Dbms_stats.cleanup_stats_db_proc taking more CPU time.
Hi All,
Oracle 11g R2(11.2.0.3) EE , on Linux machine.
Oracle auto optimizer stats collection enabled in our environment. In that dbms_stats.cleanup_stats_db_proc() taking more CPU time (more than 24 hours).
Could you please suggest any solution.
Thanks in advance.
BR,
Suryasuresh.ratnaji wrote:
NAME TYPE VALUE
_optimizer_cost_based_transformation string OFF
filesystemio_options string asynch
object_cache_optimal_size integer 102400
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 10.2.0.4
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string choose
optimizer_secure_view_merging boolean TRUE
plsql_optimize_level integer 2
please let me know why it taking more time in INDEX RANGE SCAN compare to the full table scan?Suresh,
Any particular reason why you have a non-default value for a hidden parameter, optimizercost_based_transformation ?
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I have just bought iphone 5 and i have a problem in charging it , firstly it took a long time to charge when i opened it to the first time , and its nearly dont charge on 110 output, and its taking a long time to charge on 220 reaches 50% in 1 hour is this normal?
The charger block is universal and is able to handle multiple votages. One hour to reach 50% seems fine to me if the phone was completely flat to start with. Just leave it on charge for as long as it takes to reach 100%. I leave mine connected overnight all the time and it does not harm the battery
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Server Process taking all CPU time intermittently on Solaris
Hi,
What does my program do :-
We have been facing this problem from many days, We have a server
process which is continuously listening at a port on Solaris 5.8.
Whenever a request is sent to this server a new thread & a socket is created for that client.
This process is running as a proxy server, which connects to some other machine on client request.
Problem:
The process start taking whole CPU after few days, happens in a weeks
period. The process remain in this state for few hours & after that it
stops responding to any requests.
& the only thing which can be done, to make it work is to restart the
process.
If someone has faced a similar problem then please let me know if you
have found a solution for that.
I will give 10 duke dollars to you if you can provide a solution for this problem.
Regards,
SachinHere is another class which is used in my code:
package com.ge.med.service.olea.telnetapplet.proxy;
import java.io.*;
import java.net.*;
import java.util.*;
* This class is a generic framework for a flexible, multi-threaded server.
* It listens on any number of specified ports, and, when it receives a
* connection on a port, passes input and output streams to a specified Service
* object which provides the actual service. It can limit the number of
* concurrent connections, and logs activity to a specified stream.
public class Server {
// This is the state for the server
ConnectionManager connectionManager; // The ConnectionManager object
Hashtable services; // The current services and their ports
ThreadGroup threadGroup; // The threadgroup for all our threads
PrintWriter logStream; // Where we send our logging output to
* This is the Server() constructor. It must be passed a stream
* to send log output to (may be null), and the limit on the number of
* concurrent connections. It creates and starts a ConnectionManager
* thread which enforces this limit on connections.
public Server(OutputStream logStream, int maxConnections) {
setLogStream(logStream);
log("Starting server");
threadGroup = new ThreadGroup("Server");
connectionManager = new ConnectionManager(threadGroup, maxConnections);
connectionManager.start();
services = new Hashtable();
* A public method to set the current logging stream. Pass null
* to turn logging off
public void setLogStream(OutputStream out) {
if (out != null) logStream = new PrintWriter(new OutputStreamWriter(out));
else logStream = null;
/** Write the specified string to the log */
protected synchronized void log(String s) {
if (logStream != null) {
logStream.println("[" + new Date() + "] " + s);
logStream.flush();
/** Write the specified object to the log */
protected void log(Object o) { log(o.toString()); }
* This method makes the server start providing a new service.
* It runs the specified Service object on the specified port.
public void addService(Service service, int port) throws IOException {
Integer key = new Integer(port); // the hashtable key
// Check whether a service is already on that port
if (services.get(key) != null)
throw new IllegalArgumentException("Port " + port + " already in use.");
// Create a Listener object to listen for connections on the port
Listener listener = new Listener(threadGroup, port, service);
// Store it in the hashtable
services.put(key, listener);
// Log it
log("Starting service " + service.getClass().getName() +
" on port " + port);
// Start the listener running.
listener.start();
* This method makes the server stop providing a service on a port.
* It does not terminate any pending connections to that service, merely
* causes the server to stop accepting new connections
public void removeService(int port) {
Integer key = new Integer(port); // hashtable key
// Look up the Listener object for the port in the hashtable of services
final Listener listener = (Listener) services.get(key);
if (listener == null) return;
// Ask the listener to stop
listener.pleaseStop();
// Remove it from the hashtable
services.remove(key);
// And log it.
log("Stopping service " + listener.service.getClass().getName() +
" on port " + port);
* This nested class manages client connections for the server.
* It maintains a list of current connections and enforces the
* maximum connection limit. It creates a separate thread (one per
* server) that sits around and wait()s to be notify()'d that a connection
* has terminated. When this happens, it updates the list of connections.
public class ConnectionManager extends Thread {
int maxConnections; // The maximum number of allowed connections
Vector connections; // The current list of connections
* Create a ConnectionManager in the specified thread group to enforce
* the specified maximum connection limit. Make it a daemon thread so
* the interpreter won't wait around for it to exit.
public ConnectionManager(ThreadGroup group, int maxConnections) {
super(group, "ConnectionManager");
this.setDaemon(true);
this.maxConnections = maxConnections;
connections = new Vector(maxConnections);
log("Starting connection manager. Max connections: " + maxConnections);
* This is the method that Listener objects call when they accept a
* connection from a client. It either creates a Connection object
* for the connection and adds it to the list of current connections,
* or, if the limit on connections has been reached, it closes the
* connection.
synchronized void addConnection(Socket s, Service service) {
// If the connection limit has been reached
if (connections.size() >= maxConnections) {
try {
PrintWriter out = new PrintWriter(s.getOutputStream());
// Then tell the client it is being rejected.
out.println("Connection refused; " +
"server has reached maximum number of clients.");
out.flush();
// And close the connection to the rejected client.
s.close();
// And log it, of course
log("Connection refused to " + s.getInetAddress().getHostAddress() +
":" + s.getPort() + ": max connections reached.");
} catch (IOException e) {log(e);}
else { // Otherwise, if the limit has not been reached
// Create a Connection thread to handle this connection
Connection c = new Connection(s, service);
// Add it to the list of current connections
connections.addElement(c);
// Log this new connection
log("Connected to " + s.getInetAddress().getHostAddress() +
":" + s.getPort() + " on port " + s.getLocalPort() +
" for service " + service.getClass().getName());
// And start the Connection thread running to provide the service
c.start();
* A Connection object calls this method just before it exits.
* This method uses notify() to tell the ConnectionManager thread
* to wake up and delete the thread that has exited.
public synchronized void endConnection() { this.notify(); }
/** Change the current connection limit */
public synchronized void setMaxConnections(int max) { maxConnections=max; }
* Output the current list of connections to the specified stream.
* This method is used by the Control service defined below.
public synchronized void printConnections(PrintWriter out) {
for(int i = 0; i < connections.size(); i++) {
Connection c = (Connection)connections.elementAt(i);
out.println("CONNECTED TO " +
c.client.getInetAddress().getHostAddress() + ":" +
c.client.getPort() + " ON PORT " + c.client.getLocalPort()+
" FOR SERVICE " + c.service.getClass().getName());
* The ConnectionManager is a thread, and this is the body of that
* thread. While the ConnectionManager methods above are called by other
* threads, this method is run in its own thread. The job of this thread
* is to keep the list of connections up to date by removing connections
* that are no longer alive. It uses wait() to block until notify()'d by
* the endConnection() method.
public void run() {
while(true) { // infinite loop
// Check through the list of connections, removing dead ones
for(int i = 0; i < connections.size(); i++) {
Connection c = (Connection)connections.elementAt(i);
if (c != null && !c.isAlive()) {
connections.removeElementAt(i);
try {
//close server socket. SPR SVCge16539. Sachin Joshi.
Socket server = ProxyServer.Proxy.getServerSocket(c.client);
if (server != null)
server.close();
//close client socket.
if (c.client != null)
c.client.close();
catch (java.io.IOException e) {
System.err.println("Error closing connection " + e);
catch (Exception e) {
System.err.println("Cannot Establish Connection !! " + e);
log("Connection to " + c.client.getInetAddress().getHostAddress() +
":" + c.client.getPort() + " closed.");
System.out.println("Total Connections now = " + connections.size());
// Now wait to be notify()'d that a connection has exited
// When we wake up we'll check the list of connections again.
try { synchronized(this) { this.wait(); } }
catch(InterruptedException e) {}
* This class is a subclass of Thread that handles an individual connection
* between a client and a Service provided by this server. Because each
* such connection has a thread of its own, each Service can have multiple
* connections pending at once. Despite all the other threads in use, this
* is the key feature that makes this a multi-threaded server implementation.
public class Connection extends Thread {
Socket client; // The socket to talk to the client through
Service service; // The service being provided to that client
* This constructor just saves some state and calls the superclass
* constructor to create a thread to handle the connection. Connection
* objects are created by Listener threads. These threads are part of
* the server's ThreadGroup, so all Connection threads are part of that
* group, too.
public Connection(Socket client, Service service) {
super("Server.Connection:" + client.getInetAddress().getHostAddress() +
":" + client.getPort());
this.client = client;
this.service = service;
* This is the body of each and every Connection thread.
* All it does is pass the client input and output streams to the
* serve() method of the specified Service object. That method
* is responsible for reading from and writing to those streams to
* provide the actual service. Recall that the Service object has been
* passed from the Server.addService() method to a Listener object
* to the ConnectionManager.addConnection() to this Connection object,
* and is now finally getting used to provide the service.
* Note that just before this thread exits it calls the
* ConnectionManager.endConnection() method to wake up the
* ConnectionManager thread so that it can remove this Connection
* from its list of active connections.
public void run() {
try {
InputStream in = client.getInputStream();
OutputStream out = client.getOutputStream();
// service.serve(in, out);
((ProxyServer.Proxy)service).serve(in, out,client);
catch (IOException e) {log(e);}
finally { connectionManager.endConnection(); }
* Here is the Service interface that we have seen so much of.
* It defines only a single method which is invoked to provide the service.
* serve() will be passed an input stream and an output stream to the client.
* It should do whatever it wants with them, and should close them before
* returning.
* All connections through the same port to this service share a single
* Service object. Thus, any state local to an individual connection must
* be stored in local variables within the serve() method. State that should
* be global to all connections on the same port should be stored in
* instance variables of the Service class. If the same Service is running
* on more than one port, there will typically be different Service instances
* for each port. Data that should be global to all connections on any port
* should be stored in static variables.
* Note that implementations of this interface must have a no-argument
* constructor if they are to be dynamically instantiated by the main()
* method of the Server class.
public interface Service {
public void serve(InputStream in, OutputStream out) throws IOException;
} -
Hi,
I have a Oracle 9.2 DB with 2 cpu's,when i took a statspack report i found that CPU Time is very hight i,e more that 81%....
one of the query is taking near about 51% CPU Usage...
i.e
SELECT /*+ INDEX (OM_COURSE_FEE OCF_CFC_CODE) */DISTINCT CF_COURSE_CODE FROM OM_COURSE_FEE,OT_STUDENT_FEE_COL_HEAD,OT_STUDENT_FEE_COL_DETL WHERE SFCH_SYS_ID = SFCD_SFCH_SYS_ID AND
SFCD_FEE_TYPE_CODE = CF_TYPE_CODE AND CF_COURSE_CODE IN ( 'PE1','PE2','CCT','CPT' ) AND SFCH_TXN_CODE = :b1 AND SFCD_SUBSCRBE_JOURNAL_YN IN ( 'T','R','1','C' ) AND SFCH_APPR_UID IS NOT NULL
AND SFCH_APPR_DT IS NOT NULL AND SFCH_NO = :b2 AND NOT EXISTS (SELECT 'X' FROM OM_STUDENT_HEAD WHERE STUD_SRN = SFCH_STUD_SRN_TEMP_NO AND NVL(STUD_CLO_STATUS,0) != 1 AND
NVL(STUD_REG_STATUS,0) != 23 AND STUD_COURSE_CODE != 'CCT' AND CF_COURSE_CODE= STUD_COURSE_CODE ) ORDER BY 1 DESCExplain Plan for......
SQL> select * from table(dbms_xplan.display());
PLAN_TABLE_OUTPUT
| Id | Operation | Name
| Rows | Bytes | Cost | Pstart| Pstop |
| 0 | SELECT STATEMENT |
PLAN_TABLE_OUTPUT
| 1 | 69 | 45 | | |
| 1 | SORT UNIQUE |
| 1 | 69 | 27 | | |
| 2 | TABLE ACCESS BY GLOBAL INDEX ROWID | OT_STUDENT_FEE_COL_DETL
| 1 | 12 | 2 | ROWID | ROW L |
| 3 | NESTED LOOPS |
| 1 | 69 | 9 | | |
PLAN_TABLE_OUTPUT
| 4 | NESTED LOOPS |
| 1 | 57 | 7 | | |
| 5 | TABLE ACCESS BY GLOBAL INDEX ROWID | OT_STUDENT_FEE_COL_HEAD
| 1 | 48 | 5 | ROWID | ROW L |
| 6 | INDEX SKIP SCAN | OT_STUDENT_FEE_COL_HEAD_UK0
1 | 1 | | 4 | | |
| 7 | INLIST ITERATOR |
| | | | | |
PLAN_TABLE_OUTPUT
| 8 | TABLE ACCESS BY INDEX ROWID | OM_COURSE_FEE
| 1 | 9 | 2 | | |
| 9 | INDEX RANGE SCAN | OCF_CFC_CODE
| 1 | | 1 | | |
| 10 | FILTER |
| | | | | |
| 11 | TABLE ACCESS BY GLOBAL INDEX ROWID| OM_STUDENT_HEAD
PLAN_TABLE_OUTPUT
| 1 | 21 | 4 | ROWID | ROW L |
| 12 | INDEX RANGE SCAN | IDM_STUD_SRN_COURSE
| 1 | | 3 | | |
| 13 | INDEX RANGE SCAN | IDM_SFCD_FEE_TYPE_CODE
| 34600 | | 1 | | |
PLAN_TABLE_OUTPUT
Note: cpu costing is off, PLAN_TABLE' is old version
21 rows selected.
SQL>Statspack report
DB Name DB Id Instance Inst Num Release Cluster Host
ai 1372079993 ai11 1 9.2.0.6.0 YES ai1
Snap Id Snap Time Sessions Curs/Sess Comment
Begin Snap: 175 12-Dec-08 13:21:33 ####### .0
End Snap: 176 12-Dec-08 13:56:09 ####### .0
Elapsed: 34.60 (mins)
Cache Sizes (end)
~~~~~~~~~~~~~~~~~
Buffer Cache: 3,264M Std Block Size: 8K
Shared Pool Size: 608M Log Buffer: 977K
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 5,727.62 21,658.54
Logical reads: 16,484.89 62,336.32
Block changes: 32.49 122.88
Physical reads: 200.46 758.03
Physical writes: 5.08 19.23
User calls: 97.43 368.44
Parses: 11.66 44.11
Hard parses: 0.39 1.48
Sorts: 3.22 12.19
Logons: 0.02 0.06
Executes: 36.70 138.77
Transactions: 0.26
% Blocks changed per Read: 0.20 Recursive Call %: 28.65
Rollback per transaction %: 20.95 Rows per Sort: 131.16
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 98.79 In-memory Sort %: 99.99
Library Hit %: 98.92 Soft Parse %: 96.65
Execute to Parse %: 68.21 Latch Hit %: 99.98
Parse CPU to Parse Elapsd %: 60.50 % Non-Parse CPU: 99.48
Shared Pool Statistics Begin End
Memory Usage %: 90.06 89.79
% SQL with executions>1: 72.46 72.46
% Memory for SQL w/exec>1: 69.42 69.51
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
CPU time 3,337 81.43
db file sequential read 60,550 300 7.32
global cache cr request 130,852 177 4.33
db file scattered read 72,915 101 2.46
db file parallel read 3,384 75 1.84
Cluster Statistics for DB: ai Instance: ai11 Snaps: 175 -176
Global Cache Service - Workload Characteristics
Ave global cache get time (ms): 1.3
Ave global cache convert time (ms): 2.1
Ave build time for CR block (ms): 0.1
Ave flush time for CR block (ms): 0.3
Ave send time for CR block (ms): 0.3
Ave time to process CR block request (ms): 0.7
Ave receive time for CR block (ms): 4.9
Ave pin time for current block (ms): 0.0
Ave flush time for current block (ms): 0.0
Ave send time for current block (ms): 0.3
Ave time to process current block request (ms): 0.3
Ave receive time for current block (ms): 2.8
Global cache hit ratio: 1.5
Ratio of current block defers: 0.0
% of messages sent for buffer gets: 1.4
% of remote buffer gets: 0.1
Ratio of I/O for coherence: 1.1
Ratio of local vs remote work: 9.7
Ratio of fusion vs physical writes: 0.1
Global Enqueue Service Statistics
Ave global lock get time (ms): 0.8
Ave global lock convert time (ms): 0.0
Ratio of global lock gets vs global lock releases: 1.1
GCS and GES Messaging statistics
Ave message sent queue time (ms): 0.4
Ave message sent queue time on ksxp (ms): 2.7
Ave message received queue time (ms): 0.2
Ave GCS message process time (ms): 0.1
Ave GES message process time (ms): 0.1
% of direct sent messages: 19.4
% of indirect sent messages: 43.5
% of flow controlled messages: 37.1
GES Statistics for DB: ai Instance: ai11 Snaps: 175 -176
Statistic Total per Second per Trans
dynamically allocated gcs resourc 0 0.0 0.0
dynamically allocated gcs shadows 0 0.0 0.0
flow control messages received 0 0.0 0.0
flow control messages sent 0 0.0 0.0
gcs ast xid 0 0.0 0.0
gcs blocked converts 1,231 0.6 2.2
gcs blocked cr converts 2,432 1.2 4.4
gcs compatible basts 0 0.0 0.0
gcs compatible cr basts (global) 658 0.3 1.2
gcs compatible cr basts (local) 57,822 27.9 105.3
gcs cr basts to PIs 0 0.0 0.0
gcs cr serve without current lock 0 0.0 0.0
gcs error msgs 0 0.0 0.0
gcs flush pi msgs 821 0.4 1.5
gcs forward cr to pinged instance 0 0.0 0.0
gcs immediate (compatible) conver 448 0.2 0.8
gcs immediate (null) converts 1,114 0.5 2.0
gcs immediate cr (compatible) con 42,094 20.3 76.7
gcs immediate cr (null) converts 396,284 190.9 721.8
gcs msgs process time(ms) 42,220 20.3 76.9
gcs msgs received 545,133 262.6 993.0
gcs out-of-order msgs 5 0.0 0.0
gcs pings refused 1 0.0 0.0
gcs queued converts 0 0.0 0.0
gcs recovery claim msgs 0 0.0 0.0
gcs refuse xid 0 0.0 0.0
gcs retry convert request 0 0.0 0.0
gcs side channel msgs actual 2,397 1.2 4.4
gcs side channel msgs logical 232,024 111.8 422.6
gcs write notification msgs 15 0.0 0.0
gcs write request msgs 278 0.1 0.5
gcs writes refused 1 0.0 0.0
ges msgs process time(ms) 4,873 2.3 8.9
ges msgs received 39,769 19.2 72.4
global posts dropped 0 0.0 0.0
global posts queue time 0 0.0 0.0
global posts queued 0 0.0 0.0
global posts requested 0 0.0 0.0
global posts sent 0 0.0 0.0
implicit batch messages received 39,098 18.8 71.2
implicit batch messages sent 33,386 16.1 60.8
lmd msg send time(ms) 635 0.3 1.2
lms(s) msg send time(ms) 2 0.0 0.0
messages flow controlled 196,546 94.7 358.0
messages received actual 182,783 88.0 332.9
messages received logical 584,848 281.7 1,065.3
messages sent directly 102,657 49.4 187.0
messages sent indirectly 230,329 110.9 419.5
msgs causing lmd to send msgs 9,169 4.4 16.7
msgs causing lms(s) to send msgs 3,347 1.6 6.1
msgs received queue time (ms) 142,759 68.8 260.0
msgs received queued 584,818 281.7 1,065.2
msgs sent queue time (ms) 99,300 47.8 180.9
msgs sent queue time on ksxp (ms) 608,239 293.0 1,107.9
msgs sent queued 230,391 111.0 419.7
msgs sent queued on ksxp 229,013 110.3 417.1
GES Statistics for DB: ai Instance: ai11 Snaps: 175 -176
Statistic Total per Second per Trans
process batch messages received 65,059 31.3 118.5
process batch messages sent 50,959 24.5 92.8
Wait Events for DB: ai Instance: ai11 Snaps: 175 -176
-> s - second
-> cs - centisecond - 100th of a second
-> ms - millisecond - 1000th of a second
-> us - microsecond - 1000000th of a second
-> ordered by wait time desc, waits desc (idle events last)
Avg
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
db file sequential read 60,550 0 300 5 110.3
global cache cr request 130,852 106 177 1 238.3
db file scattered read 72,915 0 101 1 132.8
db file parallel read 3,384 0 75 22 6.2
latch free 7,253 1,587 52 7 13.2
enqueue 44,947 0 16 0 81.9
log file parallel write 2,140 0 6 3 3.9
db file parallel write 341 0 5 14 0.6
global cache open x 1,134 3 4 4 2.1
CGS wait for IPC msg 166,993 164,390 4 0 304.2
library cache lock 3,169 0 3 1 5.8
log file sync 494 0 3 5 0.9
row cache lock 702 0 3 4 1.3
DFS lock handle 6,900 0 2 0 12.6
control file parallel write 689 0 2 3 1.3
control file sequential read 2,785 0 2 1 5.1
wait for master scn 687 0 2 2 1.3
global cache null to x 699 0 2 2 1.3
global cache s to x 778 5 1 2 1.4
direct path write 148 0 0 3 0.3
SQL*Net more data to client 3,621 0 0 0 6.6
global cache open s 149 0 0 2 0.3
library cache pin 78 0 0 2 0.1
ksxr poll remote instances 3,536 2,422 0 0 6.4
LGWR wait for redo copy 12 6 0 9 0.0
buffer busy waits 23 0 0 5 0.0
direct path read 9 0 0 10 0.0
buffer busy global CR 5 0 0 17 0.0
SQL*Net break/reset to clien 172 0 0 0 0.3
global cache quiesce wait 4 1 0 7 0.0
KJC: Wait for msg sends to c 86 0 0 0 0.2
BFILE get length 67 0 0 0 0.1
global cache null to s 9 0 0 1 0.0
BFILE open 6 0 0 0 0.0
BFILE read 60 0 0 0 0.1
BFILE internal seek 60 0 0 0 0.1
BFILE closure 6 0 0 0 0.0
cr request retry 4 4 0 0 0.0
SQL*Net message from client 201,907 0 180,583 894 367.8
gcs remote message 171,236 43,749 3,975 23 311.9
ges remote message 79,324 40,722 2,017 25 144.5
SQL*Net more data from clien 447 0 9 21 0.8
SQL*Net message to client 201,901 0 0 0 367.8
Background Wait Events for DB: ai Instance: ai11 Snaps: 175 -176
-> ordered by wait time desc, waits desc (idle events last)
Avg
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
enqueue 44,666 0 16 0 81.4
latch free 4,895 108 6 1 8.9
log file parallel write 2,140 0 6 3 3.9
db file parallel write 341 0 5 14 0.6
CGS wait for IPC msg 166,969 164,366 4 0 304.1
DFS lock handle 6,900 0 2 0 12.6
control file parallel write 689 0 2 3 1.3
control file sequential read 2,733 0 2 1 5.0
wait for master scn 687 0 2 2 1.3
ksxr poll remote instances 3,528 2,419 0 0 6.4
LGWR wait for redo copy 12 6 0 9 0.0
db file sequential read 7 0 0 9 0.0
global cache null to x 26 0 0 2 0.0
global cache open x 16 0 0 1 0.0
global cache cr request 1 0 0 0 0.0
rdbms ipc message 28,636 20,600 16,937 591 52.2
gcs remote message 171,254 43,746 3,974 23 311.9
pmon timer 708 686 2,022 2856 1.3
ges remote message 79,305 40,719 2,017 25 144.5
smon timer 125 0 1,972 15776 0.2
SQL ordered by Gets for DB: ai Instance: ai11 Snaps: 175 -176
-> End Buffer Gets Threshold: 10000
-> Note that resources reported for PL/SQL includes the resources used by
all SQL statements called within the PL/SQL code. As individual SQL
statements are also reported, it is possible and valid for the summed
total % to exceed 100
CPU Elapsd
Buffer Gets Executions Gets per Exec %Total Time (s) Time (s) Hash Value
17,503,305 84 208,372.7 51.1 676.25 1218.80 17574787
SELECT /*+ INDEX (OM_COURSE_FEE OCF_CFC_CODE) */DISTINCT CF_COU
RSE_CODE FROM OM_COURSE_FEE,OT_STUDENT_FEE_COL_HEAD,OT_STUDENT
FEECOL_DETL WHERE SFCH_SYS_ID = SFCD_SFCH_SYS_ID AND SFCD_FE
E_TYPE_CODE = CF_TYPE_CODE AND CF_COURSE_CODE IN ( 'PE1','PE2',
'CCT','CPT' ) AND SFCH_TXN_CODE = :b1 AND SFCD_SUBSCRBE_JOURNAuser00726 wrote:
somw of the changes that have been done....
cai11_lmd0_15771.trc.
Thu Oct 2 13:35:48 2008
CKPT: Begin resize of buffer pool 3 (DEFAULT for block size 8192)
CKPT: Current size = 2512 MB, Target size = 3072 MB
CKPT: Resize completed for buffer pool DEFAULT for blocksize 8192
Thu Oct 2 13:35:50 2008
ALTER SYSTEM SET db_cache_size='3072M' SCOPE=BOTH SID='icai11';
Thu Oct 2 14:04:34 2008
ALTER SYSTEM SET sga_max_size='5244772679680' SCOPE=SPFILE SID='*';
ALTER SYSTEM SET sga_max_size='5244772679680' SCOPE=SPFILE SID='*';
Thu Oct 2 15:24:14 2008
CKPT: Begin resize of buffer pool 3 (DEFAULT for block size 8192)
CKPT: Current size = 3072 MB, Target size = 2512 MB
CKPT: Resize completed for buffer pool DEFAULT for blocksize 8192
Thu Oct 2 15:24:20 2008
ALTER SYSTEM SET db_cache_size='2512M' SCOPE=BOTH SID='icai11';
Thu Oct 2 15:32:33 2008
CKPT: Begin resize of buffer pool 3 (DEFAULT for block size 8192)
CKPT: Current size = 2512 MB, Target size = 3072 MB
CKPT: Resize completed for buffer pool DEFAULT for blocksize 8192
Thu Oct 2 15:32:34 2008
ALTER SYSTEM SET db_cache_size='3072M' SCOPE=BOTH SID='icai11';
Thu Oct 2 15:36:46 2008
ALTER SYSTEM SET shared_pool_size='640M' SCOPE=BOTH SID='icai11';
Thu Oct 2 16:33:52 2008
CKPT: Begin resize of buffer pool 3 (DEFAULT for block size 8192)
CKPT: Current size = 3072 MB, Target size = 2512 MB
CKPT: Resize completed for buffer pool DEFAULT for blocksize 8192
Thu Oct 2 16:33:56 2008
ALTER SYSTEM SET db_cache_size='2512M' SCOPE=BOTH SID='icai11';
Thu Oct 2 16:39:30 2008
ALTER SYSTEM SET pga_aggregate_target='750M' SCOPE=BOTH SID='icai11';Just to make certain that I am not missing anything, if the above you set (all scaled to GB just for the sake of comparison):
sga_max_size=4885GB
db_cache_size=3GB
shared_pool_size=0.625GB
pga_aggregate_target=0.733GB
The SQL statement is forcing the use of a specific index, is this the best index?:
SELECT /*+ INDEX (OM_COURSE_FEE OCF_CFC_CODE) */DISTINCT CF_COURSE_CODE FROM OM_COURSE_FEE,OT_STUDENT_FEE_COL_HEAD,OT_STUDENT_FEE_COL_DETL WHERE SFCH_SYS_ID = SFCD_SFCH_SYS_ID AND
SFCD_FEE_TYPE_CODE = CF_TYPE_CODE AND CF_COURSE_CODE IN ( 'PE1','PE2','CCT','CPT' ) AND SFCH_TXN_CODE = :b1 AND SFCD_SUBSCRBE_JOURNAL_YN IN ( 'T','R','1','C' ) AND SFCH_APPR_UID IS NOT NULL
AND SFCH_APPR_DT IS NOT NULL AND SFCH_NO = :b2 AND NOT EXISTS (SELECT 'X' FROM OM_STUDENT_HEAD WHERE STUD_SRN = SFCH_STUD_SRN_TEMP_NO AND NVL(STUD_CLO_STATUS,0) != 1 AND
NVL(STUD_REG_STATUS,0) != 23 AND STUD_COURSE_CODE != 'CCT' AND CF_COURSE_CODE= STUD_COURSE_CODE ) ORDER BY 1 DESC
Unfortunately, explain plans, even with dbms_xplan.display, may not show the actual execution plan - this is more of a problem when the SQL statement includes bind variables (capturing a 10046 trace at level 8 or 12 will help). With the information provided, it looks like the problem is with the number of logical reads performed: 17,503,305 in 84 executions = 208,373 logical reads per execution. Something is causing the SQL statement to execute inefficiently, possibly a join problem between tables, possibly the forced use of an index.
From one of my previous posts related to this same SQL statement:
SELECT /*+ INDEX (OM_COURSE_FEE OCF_CFC_CODE) */ DISTINCT
CF_COURSE_CODE
FROM
OM_COURSE_FEE,
OT_STUDENT_FEE_COL_HEAD,
OT_STUDENT_FEE_COL_DETL
WHERE
SFCH_SYS_ID = SFCD_SFCH_SYS_ID
AND SFCD_FEE_TYPE_CODE = CF_TYPE_CODE
AND CF_COURSE_CODE IN ( 'PE1','PE2','CCT','CPT' )
AND SFCH_TXN_CODE = :b1
AND SFCD_SUBSCRBE_JOURNAL_YN IN ( 'T','R','1','C' )
AND SFCH_APPR_UID IS NOT NULL
AND SFCH_APPR_DT IS NOT NULL
AND SFCH_NO = :b2
AND NOT EXISTS (
SELECT
'X'
FROM
OM_STUDENT_HEAD
WHERE
STUD_SRN = SFCH_STUD_SRN_TEMP_NO
AND NVL(STUD_CLO_STATUS,0) != 1
AND NVL(STUD_REG_STATUS,0) != 23
AND STUD_COURSE_CODE != 'CCT'
AND CF_COURSE_CODE = STUD_COURSE_CODE)
ORDER BY
1 DESC
| Id | Operation | Name | Rows | Bytes | Cost | Pstart| Pstop |
| 0 | SELECT STATEMENT 1 69 34
| 1 | SORT UNIQUE 1 69 22
| 2 | TABLE ACCESS BY GLOBAL INDEX ROWID | OT_STUDENT_FEE_COL_DETL | 1 | 12 | 2 | ROWID | ROW L |
| 3 | NESTED LOOPS 1 69 9
| 4 | NESTED LOOPS 1 57 7
| 5 | TABLE ACCESS BY GLOBAL INDEX ROWID | OT_STUDENT_FEE_COL_HEAD | 1 | 48 | 5 | ROWID | ROW L |
| 6 | INDEX SKIP SCAN OT_STUDENT_FEE_COL_HEAD_UK0| 1 | 1 | 4 |
| 7 | INLIST ITERATOR |
| 8 | TABLE ACCESS BY INDEX ROWID | OM_COURSE_FEE | 1 | 9 | 2 | | |
| 9 | INDEX RANGE SCAN | OCF_CFC_CODE | 1 | | 1 | | |
| 10 | FILTER
| 11 | TABLE ACCESS BY GLOBAL INDEX ROWID| OM_STUDENT_HEAD | 1 | 21 | 4 | ROWID | ROW L |
| 12 | INDEX RANGE SCAN | IDM_STUD_SRN_COURSE | 1 | | 3 | | |
| 13 | INDEX RANGE SCAN | IDM_SFCD_FEE_TYPE_CODE | 34600 | | 1 | | |It appears, based just on the SQL statement, that there is no direct relationship between OM_COURSE_FEE and OT_STUDENT_FEE_COL_HEAD, yet the plan above indicates that the two tables are being joined together, likely as a result of the index hint. There is the possibility of additional predicates being generated by Oracle which will make this possible without introducing a Cartesian join, but those predicates are not displayed with an explain plan (they will appear with a DBMS_XPLAN). I may not be remembering correctly, but if the optimizer goal is set to first rows, a Cartesian join might appear in a plan as a nested loops join - Jonathan will know for certain if that is the case.
Have you investigated the above as a possible cause? If you know that there is a problem with this one SQL statement, a 10046 trace at level 8 or 12 is much more helpful than a Statspack report.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc. -
Publishing topology causes high CPU times? What?
I have a mixed environment currently with 2 lync 2010 front ends (Production) and 4 lync 2013 front ends (pilot pools).
When I make a change and publish the topology all 6 2010 and 2013 front ends go to 100% CPU time. IIS Worker Process is to blame and issuing "iisreset" on each server fixes it.
Where do I ever begin to diagnose this? No odd network traffic in packet captures, but I know right away when it happens as SCOM starts blowing up on CPU time and Lync conference join errors.Each 60 seconds a task is run to determine if a change has been made to the CMS master and needs to be replicated. If a change was made, all replica need to synchronize with the CMS master. The replication may cause the high CPU usage. You should check the
duration of the High CPU usage. I think once the replication completes, the CPU usage will go down.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. -
Genius updating taking 100%+ CPU time and error 13011
Does anyone else have the issue of iTunes updating Genius causing their CPU usage to max out run the cooling fan at full speed?
Im getting an average of 100%+ CPU usage while its updating or compiling or whatever its doing and Macbook cooks whiles its doing so.
Activity Monitor is reporting ridiculously high CPU usage. How do you even get 108% CPU usage?? Can someone explain that for me?
Im also getting the message 'unable to save library' with error 13011 at the end of Genius updating (the Genius update progress bar is full).
Can anyone give me some pointers as to what I can do to check why i'm getting these issues or if there is resolution?
Killing the Genius data gathering solves the CPU usage issue straight away but I'm sure it wasnt this bad before Snow Leopard.
Cheers
AChere is a log of the console messages relating to itunes if that helps anyone...
11/09/09 8:22:24 AM [0x0-0x1cd1cd].com.apple.iTunes[4459] objc[4459]: Class DOMHTMLParamElement is implemented in both /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.frame work/Versions/A/WebCore and /Library/InputManagers/SafariBlock/SafariBlock.bundle/Contents/MacOS/SafariBloc k. One of the two will be used. Which one is undefined.
11/09/09 8:22:24 AM [0x0-0x1cd1cd].com.apple.iTunes[4459] objc[4459]: Class WebBaseNetscapePluginView is implemented in both /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit and /Library/InputManagers/SafariBlock/SafariBlock.bundle/Contents/MacOS/SafariBloc k. One of the two will be used. Which one is undefined.
11/09/09 8:22:26 AM Firewall[65] iTunes is listening from 0.0.0.0:3689 proto=6
11/09/09 8:22:27 AM Firewall[65] iTunes is listening from :::3689 proto=6
11/09/09 8:22:27 AM [0x0-0x1cd1cd].com.apple.iTunes[4459] Child process initialized.
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub read_all(49) failed -1/4 9 Bad file descriptor
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub read_all(49) failed -1/4 9 Bad file descriptor
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub read_all(45) failed -1/4 9 Bad file descriptor
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub DNSServiceRefDeallocate called with invalid DNSServiceRef 0x1a808680 FFFF0004 DDDDDDDD
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub DNSServiceRefDeallocate called with invalid DNSServiceRef 0x1a8025a0 00000000 80000000
11/09/09 8:22:28 AM /Applications/iTunes.app/Contents/MacOS/iTunes[4459] dnssd_clientstub DNSServiceRefDeallocate called with invalid DNSServiceRef 0x1a8025e0 00000001 18B96E00 -
I having issue with my Iphone 4 while playing music its taking too much time to play
I am using Iphone which is taking too much time to play music & some time its shows one album cover and playing others song please help and let me know whats the issue
Hello Sanjay,
I would recommend steps 1, 3, and 5 from our iPhone Troubleshooting Assistant found here: http://www.apple.com/support/iphone/assistant/phone/#section_1
Here is step 1 to get you started.
Restart iPhone
To restart iPhone, first turn iPhone off by pressing and holding the Sleep/Wake button until a red slider appears. Slide your finger across the slider and iPhone will turn off after a few moments.
Next, turn iPhone on by pressing and holding the Sleep/Wake button until the Apple logo appears.
Is iPhone not responding? To reset iPhone, press and hold the Sleep/Wake button and the Home button at the same time for at least 10 seconds, until the Apple logo appears.
If your device does not turn on or displays a red battery icon, try recharging next.
Take care,
Sterling -
Query to find adhoc queries taking high cpu on server
Hi,
I want to find all the adhoc and other queries consuming high cpu on sql server. sys.dm_exec_cahched_plan will only have cached queries and not the currently running ones.Hi Preetha7,
According to your description, if you want to identify the most expensive SQL Server queries based on the cumulative CPU cost, you can use the DMVs of the sys.dm_exec_sql_text , the sys.dm_exec_query_plan and sys.dm_exec_query_stats. For example, you can
refer to the following T-SQL statement.
SELECT TOP 20
qs.sql_handle,
qs.execution_count,
qs.total_worker_time AS Total_CPU,
total_CPU_inSeconds = --Converted from microseconds
qs.total_worker_time/1000000,
average_CPU_inSeconds = --Converted from microseconds
(qs.total_worker_time/1000000) / qs.execution_count,
qs.total_elapsed_time,
total_elapsed_time_inSeconds = --Converted from microseconds
qs.total_elapsed_time/1000000,
st.text,
qp.query_plan
FROM
sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
CROSS apply sys.dm_exec_query_plan (qs.plan_handle) AS qp
ORDER BY qs.total_worker_time DESC
Or you can run the "Performance - Top Queries By Total CPU Time" report in SSMS. In addition, you can use SQL Server Extended Events session for troubleshooting the high consumed of CPU time. For more information about finding currently session that is costing
high CPU.
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/cb3e29ca-f1ef-4440-8f1a-db4924a43c5c/find-currently-session-that-is-costing-high-cpu?forum=sqldatabaseengine
http://blogs.msdn.com/b/batala/archive/2011/07/23/troubleshoot-high-cpu-issue-without-using-profile-traces.aspx
Regards,
Sofiya Li
Sofiya Li
TechNet Community Support -
Since I updated my iPad 2,it makes a shutter sound ( like its taking a picture) every time I close its cover,or even when I just set it down. Any idea on how to fix this? Thank you!
Omg, it worked! Thank you so much --- it's been driving me nuts for weeks now! The sound can get really annoying, lol!
-
I am using FireFox 4.0.1 for Windows, and routinely check for updates. It did not do this under previous versions (not sure it is was specific to 4.0.1 or with started with 4.0) I have watched the CPU utilization when starting other applications including Thunderbird, and the high utilization by this process so far seems tied to whenever I start up the newer version of FireFox.
Start your '''Computer''' in safe mode. Then start Firefox. Try '''Safe''' web sites.
'''[http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting The Computer In Safe Mode;<br>Free Online Encyclopedia]'''
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller]
* [http://general-changelog-team.fr/en/downloads/viewdownload/20-outils-de-xplode/2-adwcleaner AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page])
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us! -
Java code running as background process in Linux causes high CPU util.
I'm running a piece of java code as a background process in Redhat 7.1 . When I specify to run it as a background process (using the '&') at the command line, I get CPU utilization at around 5% and it dips.
When I edit the script that runs the java code to specify running it as a background process withint the script itself (java ..... &) and then go to the command line and run the script, the CPU utilization shoots up to 95% and stays at the low 90's - very high 80's range for the CPU utilization..
I'm hoping someone has any idea for this behavior and a way to fix it.
Thanks in advance,
Sarat..This is an interesting post and i'm sory i don't have time to
experament before i answer
you could of course run the script as background
*.sh &
but that's probubly not what you want
I think the solution lies in giving the
proccess a job number %n
then setting it %n &
it might even work to
put something like %java &
Anyway when it's running fullout
it is because it is in the
current terminal process group PID.
wish i could help more -
Queries taking high execution time for zero count
Hi,
i have procedures executing as jobs.
the procedures take a lot of time to execute when the cursor count is zero.
what might be the reason for this?GreenHorn wrote:
cursor 1 - select a.col1, b.col1,decode(c.col1,1,c.col1,2,c.col2,null) col3 from a,b,c
where joing conditions
and nvl(c.col3,c.col4) = b.col3
and c.col5 is null
cursor 2 - cursor 1 - select a.col1, b.col1,decode(c.col1,1,c.col1,2,c.col2,null) col3 from a,b,c
where joing conditions
and a.timestamp > sysdate-1
and nvl(c.col3,c.col4) = b.col3
and c.col5 is not nulll
cursor 2 first updates the values of col5 to null
cursor 1 recalculates the value of col5 and updates it.
c is a partitioned table and partition code is also present in the where condition.One question: Since you say that the cursor is "updating", but the cursor is a query, does this mean that you're performing row-by-row processing in a loop?
If yes, you might be better off with doing this in one or two plain SQL statements, which is probably much faster.
Another question: You say that after taking the described measures the performance was significantly better but became again worse after a couple of days again, is this right?
Can you provide more details, what "good" and "bad" performance means, e.g. in terms of execution time?
You might want to check if the execution plans change between the "good" performance and the "bad" performance.
If your table continuously gets data deleted and for some reason the deleted rows are not re-used, e.g. by using direct-path inserts to add new data, then your segment might become larger and larger and you would need to re-organize the table if you use regularly full table scans against it.
The execution plan posted is not really helpful. Try to use DBMS_XPLAN.DISPLAY to get a proper output including the "Predicate Information" section below the plan and specify to which of the two statements the plan corresponds.
Use the {noformat}{noformat} tags to format the plan output properly here in mono-space fonts.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/
Edited by: Randolf Geist on Dec 12, 2008 9:57 AM
Note regarding execution plan added
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