ora_qmnc high cpu

1 JavaCard Introduction Smart card is the integrated CPU , ROM, RAM, COS (chip operating system), and EEPROM, can store information and images, with read / write capability, information can be encrypted to protect the portable card. Smart card is the

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Introduction With the Non-contact IC card Step-by-step in the promotion of domestic, non-contact applications with its fast and convenient mode of operation has become increasingly popular and gradually became public transport, urban construction pre

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JBoss has a JMX management, web management interface called the jmx-console, in the http://localhost:8080/jmx-console/ directory. In JBoss, the principal through the jmx-console to manage, although an increase in the JBoss5.1 Lane admin-console. But

April 22

In Socket programming, to use multi-threading to handle network flow, the client need not stop to listen if there are data over the port, where the basic flow by sending and receiving, DataInputStream read methods are at all blocked, and only availab

time network, socket programming, writing process, infinite loop, cpu utilization, network flow, endless loop, program cycleMarch 28

First pull a few, team in an ongoing pilot project, recently hit back by customers, the problem is flex performance problems. Symptoms are as follows, when the service layer as the background java servlet to call when, ui will pop up again to play a

March 6

I thought I would write a little howto on how to get cpu frequency scaling to work directly with the kernel modules. These modules are generally more efficient for performance computing and battery life. Prerequisites kernel> = 2.6.9 Step 1: Enable B

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[Introduction] TortoiseSVN is a very popular open-source community a source code control and management software, open source projects, almost all use the SVN. [Problem] After installing the SVN have a TSVNCache.exe-memory process, this process will

implementation, file folder, memory, subversion, adaptation, open source projects, partition, management software, tortoisesvn, open source community, accession, solution method, source directory, status icon, system folder, software open source, source code control, status icons, 50mbMarch 18

View System Information (bjchenxu) cat / proc / cpuinfo - CPU (ie vendor, Mhz, flags like mmx) cat / proc / interrupts - interrupts cat / proc / ioports - Device IO Port cat / proc / meminfo - memory information (ie mem used, free, swap size) cat / p

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Original Source: http://www.51testing.com/?uid-225738-action-viewspace-itemid-210333 Test machine hardware information: View CPU Information (Type) # Cat / proc / cpuinfo | grep name | cut-f2-d: | uniq-c 8 Intel (R) Xeon (R) CPU [email protected] (See 8

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If your PC, the recent CPU overheating, it may be diagnosed from the following aspects: ① virus. ② Open the chassis cover to see inside is not covered with dust, if there is a comprehensive clean up. Then observed; ③ The CPU fan is the normal operati

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CPU architecture is divided into two categories: CISC (Complex Instruction Set Computer) and RISC (reduced instruction set computer). CISC-based CPU architecture instruction in handling the first address of the instructions, re-analysis, the implemen

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Reserved Address: http://www.pczpg.com/a/2010/0307/2657.html At present, dual-core CPU has been quite popular, Windows 7 has a good multi-core CPU support, but during the startup process may not be able to play Multi-core CPU's performance, in order

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From DW China About this series This series consists of three parts, focusing on central processing unit (CPU) performance and monitoring aspects. The first part of this series outlines effective ways to monitor CPU, discuss performance optimization

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Introduction Performance optimization is clearly not just run some command and then observe the results. UNIX ® administrator needs to know which tools will be used for what purpose, and the best way to capture the data is. Sometimes you may not have

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Introduction This article includes threads, processes and CPU bound. This article also discusses how to use the article in the preceding description of some tools to make changes to your system. Meanwhile, the article also describes AIX Version 5.3,

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Use the following command to see: ps-aux | sort-k4, 4n ps auxw - sort = rss ps auxw - sort =% cpu ps command under linux % CPU process cpu occupancy rate % MEM process memory occupancy rate VSZ virtual memory used by process size RSS resident set siz

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1. Should stand in the operating system checks the height of the causes of high CPU use, system monitoring, etc. can vmstat command to see CPU usage and other resources 2. Then you can use the TOP tool to further examine the process CPU consumption 3

March 24

Many times our server may experience 100% CPU consumption performance problems. Elimination system abnormalities, such problems are usually because of poor performance or even exist in the system there is an error in the SQL statement, a lot of CPU c

March 27

http://database.51cto.com/art/200911/163251.htm I am very fond of Oracle, is also at work on the Oracle optimization like CPU usage summary of lessons learned, the following detail on this issue to speak. CPU is an important resource server, the serv

March 29

OS version localdomain 2.6.18-53.e15PAE Database version 10.2.0.1 Consumed by the client to reflect QMNC process 100% cpu, were judged to Oracle caused by a bug, bug number is 5484652 Solution: ALTER SYSTEM SET AQ_TM_PROCESSES = 5 SCOPE = SPFILE; Res

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Oracle database will always be the CPU utilization is high, this time mostly in the database there is a serious poor performance SQL statements SQL statement that consumed much of the CPU resources, resulting in lower overall system performance. Of c

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Let Xen dom0 get enough CPU processing IO March 23, 2010 | Tags: xen By default, Xen uses the Credit-Based CPU Scheduler , based on the weight of the CPU scheduling algorithm. Simply put, is to give each virtual machine's CPU a weight, the weight and

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1. Jdk that comes with using API to obtain information: (the above version only supports jdk1.60 ah) import java.io.InputStreamReader; import java.io.LineNumberReader; import java.util.ArrayList; import java.util.List; import mytools.com.sun.manageme

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Process cpu resource allocation refers to the process priority (priority). Priority high priority to the implementation of the process right. Configuration process, the priority of the multi-tasking environment linux useful to improve system performa

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In the Unix / Linux systems administration and daily system maintenance process, at any time may need to check the CPU usage status analysis system in accordance with the appropriate status information to determine the system resource usage and syste

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Problem Write a program that allows the user to determine the Windows Task Manager (Task Manager) the CPU utilization. More streamlined procedures for the better, not limited to computer language. For example, you can achieve the following three case

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I develop desktop applications using Flex a project, when a long running time, when, cpu usage is high, generally to 50 per cent, causing the program finishes off. . . The problem is I have long puzzled Procedure is used setInterval 1 minute refresh

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Recently found a more interesting project "Xwiki", has been crunching this, also not much to complain gimmicks can write. http://www.xwiki.org/xwiki/bin/view/Main/WebHome The project called "second generation wiki", the deployment is r

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Problem Description: cpu load increased sharply, memory footprint in stable condition. (In the case of multi-cpu, such as 4-core, free to see cpuload 15%, but the view alone will reach 100% cpu load...) An analysis tool jstack: / Usr/java/jdk1.6.0_13

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MSDN's description: SetThreadAffinityMask The SetThreadAffinityMask function sets a processor affinity mask for the specified thread. DWORD_PTR SetThreadAffinityMask ( HANDLE hThread, DWORD_PTR dwThreadAffinityMask ); Parameters hThread [In] Handle t

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MSDN's description: SetThreadAffinityMask The SetThreadAffinityMask function sets a processor affinity mask for the specified thread. DWORD_PTR SetThreadAffinityMask ( HANDLE hThread, DWORD_PTR dwThreadAffinityMask ); Parameters hThread [In] Handle t

parameters, threads, mask, vector, return values, information access, processors, dword ptr, thread affinity, process affinity, proper subset, thread windows, hreadApril 25

CPU Utilization and Load Average difference? CPU utilization, is a period of time CPU usage statistics, this indicator can be seen through a period of time CPU in a situation of occupation, if the CPU is occupied time high, then the CPU needs to cons

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Today in the vmware install ubuntu linux 64bit appear "kernel requires an x86_64 cpu, but only detected" error, there are many articles online how to install, but after tests are not successful, now we find out how their own cups ... By the foll

step 3, linux, virtual machine, kernel, vmwareMay 2

Linux, to provide top, ps command to see the current cpu, mem use cases , a brief description is as follows: First, use ps view the process of resource occupation ps-aux View process information, the third column is the CPU occupancy. [Root @ localho

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1, for cpu occupancy [Root @ localhost utx86] # top-n 1 | grep Cpu Cpu (s): 1.9% us, 1.3% sy, 0.0% ni, 95.9% id, 0.6% wa, 0.1% hi, 0.2% si, 0.0% st Explained: 1.9% us is the user take up cpu case 1.3% sy, is the system is using cpu case 2, access the

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Because recently it would like to see more to see the process of multiprocessing in a multi-cpu machine utilization. And then wrote a script in the morning, i5 (4 core), from the four process, found that only one cpu running higher, then feel not ver

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1, example code: #include <stdio.h> #include <stdlib.h> #include <unistd.h> static unsigned cyc_high=0; static unsigned cyc_low=0; //rstsc Directive access counter, high 32 To save in %edx, Low 32 bits stored in the %ax void access_count

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Because recently it would like to see more to see the process of multiprocessing in a multi-cpu machine utilization. And then wrote a script in the morning, i5 (4 core), from the four process, found that only one cpu running higher, then feel not ver

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1, example code: #include <stdio.h> #include <stdlib.h> #include <unistd.h> static unsigned cyc_high=0; static unsigned cyc_low=0; //rstsc Directive access counter, high 32 To save in %edx, Low 32 bits stored in the %ax void access_count

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Recently had an item is to get the system cpu share information, etc., first thought to use the dynamic link library, but later found to be like this do not call jni, this eliminates the need for many to see the new technology time o ( ∩ _ ∩ ) o. ..

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Afternoon irritability, lying down to sleep Think of it the day before yesterday to see The Matrix, 6 minutes and 50 seconds, neo's computer to send a beep, that cool Xiangnong in a So wrote a code: It will sound according to cpu usage cpu usage 2 se

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① After running the program to open the Task Manager into the process management, find the program's process, right to this process, select the "relationship set" off the CPU1 (CPU0 do not close), then run the program. ② boot by <DEL> or F

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These units require a product to do for the company to obtain background data to make a cache for data and function modules, according to previous experience quickly modular system architecture design, multi-thread mode to obtain data, and cache in t

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Installation taskset Tools # Apt-get install schedutils Running in the process, the document said that he could use the following command, the CPU # 1 # 2 # 3 assigned to the PID for the 1234 process: # Taskset-cp 1,2,3 1234 But I tried did not work,

init, 1234, linux, pid, affinityJune 16

1, top command, the command we are more familiar with real-time monitoring cpu and other information can also run in the top command, press "1" key, the information is displayed multiple cpu 2, more / proc / cpuinfo Show machine cpu parameter in

real time, linux, cpu memory, system parameters, memory information, kernel versions, version linuxJune 17

Original: http://hi.baidu.com/brotherhou/blog/item/46eea726caa5d320d50742a7.html 1. View disk space df-hk 2. Look at memory echo:: memstat | mdb-k Page Summary Pages MB% Tot ---- ------ ------ - Kernel 1863974 7281 22% Anon 2153163 8410 26% Exec and

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(One-fourth reposted elsewhere, and can not find the original posts) After installing oracle10g or 11g, the CPU would often take up rate of 100% of the problem. The reason is that enterprise manager (em) There is a regular job for statistical informa

oracle, job, statistical information, baidu, occupancy rate, cattle, enterprise manager, possible solutionJune 22

Recent customer production environment (jboss4.2), system operation to a period of time, the customer is reflected in the system slow, and CPU are high, view the error log not found, only part of the Service Method of processing time longer. Monitor

production environment, period of time, phenomenon, processing time, cpu utilization, service customer, customer productionJune 24

How to get Java CPU The use of the situation? Here also have a good news and bad news . The bad news is not the method by using pure Java CPU Use. Do not have direct API. A suggested alternative method is through Runtime.exec() JVM process to determi

amp, api, exec, win32, java applications, jni, systeminformation, jclassJune 28

1. View the number of physical CPU # Cat / proc / cpuinfo | grep "physical id" | sort | uniq | wc-l 2. View the number of logical CPU # Cat / proc / cpuinfo | grep "processor" | wc-l 3. View the CPU is several nuclear # Cat / proc / cp

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