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
java language, programming interfaces, sun company, java applications, java card, smart card technology, smart card platform, universal smart card, processor simulation, uniform programming, independent processor, java processor, volatile storage, clock frequency, simulation software, sun documentation, cpu design, platform hardware, smart cards, hardware configurationSeptember 15
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
system architecture, independent processor, key management system, architecture transformation, authentication mechanisms, cpu card, replacement technology, card technology, preferred card, urban construction, mifare, cpu chip, personal card, system cpu, rapid application, inadequacies, application requirements, contact system, secure transaction, card applicationSeptember 30
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
step 1, cpu frequency, system cpu, intel cpu, battery life, k7 amd, intel pentium m, centrino intel, athlon mp, kernel modules, bios manual, socket types, tomshardware, amd sempron, cpu type, speedstep, ondemand, performance computing, acpi, opteronFebruary 18
[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
quot quot, linux, flags, system information, network interface, rx, time network, memory usage, network traffic, linux version, swaps, occupancy rate, system kernel, cpu usage, memory information, swap partition, processor utilization, swap size, free swap, pci deviceMarch 20
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
information type, red hat enterprise, enterprise linux, dmesg, fri, machine model, test machine, system kernel, hardware information, meminfo, machine hardware, memory information, mode support, view cpu, physical id, machine models, model cat, information machine, cpu model, type catMarch 22
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
overflow, high quality, virus, silica gel, silicone, quality power supply, cpu heat sink, problem diagnosis, fan operation, computer city, cpu fan, desktop pc, power supply problems, chassisMarch 23
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
architecture design, speed development, windows operating system, apple ibm, addressing mode, unix operating system, risc architecture, risc instruction, vlsi technology, sparc cpu, powerpc cpu, cpu architecture, vsli, alpha cpu, complex instruction set computer, instruction set computer, unix machines, performance hardware, hardware engineers, computing engineeringMarch 30
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
start button, carriage return, drop down menu, system configuration, launch, cpu speed, start menu, boot options, maximum memory, step1, processors, based computer, configuration dialog, dual core cpu, cpu support, type msconfig, options tabMarch 24
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
performance problems, performance optimization, basic knowledge, optimization methods, performance considerations, cpu resources, virtual processor, maximum performance, cpu system, monitoring tools, vmstat, cpu performance, virtual environment, central processing unit, power chips, aix administrator, central processing unit cpu, negative factors, active control, topasMarch 29
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
system performance, performance optimization, aix 5, bottlenecks, bottleneck, specific tools, statistical data, monitoring tools, vmstat, unix systems, common tools, monitoring system, system unix, topas, unix solaris, unix administrator, purpose cpu, surveillance systems, filemon, term trendsMarch 29
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,
relationship, system resources, threads, system information, process management, kernel, fundamental question, time method, system changes, running processes, monitoring tools, system management tools, flow of control, aix system, sequential flow of control, cpu scheduler, procmonMarch 29
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
date time, session id, memory size, virtual memory, time and date, cpu time, memory utilization, kernel function, occupancy rate, process id, root system, ps command, time command, digital identity, linux ps, process group, priority number, system map, priority tasks, 4nMarch 31
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
database products, stack trace, database oracle, oracle database, database version, customer test, database product, linux x86, oracle server, platform products, system call, platform version, test environments, reproducibility, server enterprise, os version, bug number, diagnostic analysis, aozora, call traceFebruary 25
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
implementation, oracle, oracle database, memory, system performance, operating system, cpu resources, kernel, poor performance, problem description, thr, cpu utilization, host cpu, performance sql, state time, load averages, field engineer, cpu states, session program, nice sizeMarch 15
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
memory, virtual machine, vps, cpu time, weights, pot, virtual machines, arduous task, own time, cpu scheduling algorithm, domu, guest operating systemApril 4
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
import java, java util, string args, jdk, string str, main string, arraylist, virtual memory, java access, c string, windows system, public static string, memory usage, char c, cpu memory, inputstreamreader, physical memory, sun management, cpu usage, mytoolsApril 4
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
lt, amp, system performance, shorthand, syntax, priority level, designation, system administrator, high priority, priority priority, priorities, cpu resource, process id, program execution, multi tasking, program group, conversion formula, execution priority, level parameters, resource allocation processApril 5
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
model implementation, system interface, cpu resources, unix linux, processor type, linux system, clock frequency, system cpu, cpu utilization, system environments, aix system, management articles, processor implementation, linux systems administration, processor clock speed, system resource usage, global data structures, ppda, processor data, processor versionApril 8
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
command line parameter, utilization rate, computer language, windows task manager, infinite loop, occupancy rate, straight line, cpu utilization, cpu usage, time concept, hard thinking, parameter range, system idle process, naked eye, technology transfer group, sine curve, asia technology, streamlined procedures, microsoft research, mission impossibleApril 8
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
desktop applications, optimization methods, test project, running time, cpu utilization, cpu usage, little brother, optimization problems, cpu control, desktop cpu, disrespectApril 14
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
production environment, user experience, memory leak, office documents, cpu load, anecdote, word length, cpu memory, page upload, devguide, core api, web access, second generation, word format, java cpu, memory dump, support word, open office, gimmicks, xwikiApril 14
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
test environment, java jdk1, profiler, pid number, cpu load, memory footprint, resource consumption, heap, analysis tool, b file, problem description, system call, bin file, space program, memory areas, java cpu, profile instruments, dump bin, related resource, stable conditionApril 16
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
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
statistical information, period of time, threads, occupation, cpu resources, cpu load, performance testing, performance requirements, cpu utilization, cpu usage, usage statistics, kernel machine, utilization ratio, request load, statistics information, damagesApril 28
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
quot quot, stat, linux, syntax, occupation, brief description, ps command, memory conditions, time command, dynamic view, zombie, cpu case, procps, zpMay 4
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
implementation, grep, time interval, linux, case 2, cpu memory, 15 minutes, active process, wait state, dual core cpu, system uptime, cpu caseMay 5
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
implementation, api, sleep, linux, third party, target time, mask, kernel, time signal, process affinity, python libraries, machine utilization, multiprocessingMay 5
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
lt, amp, sleep, cpu time, return result, stdlib, printf, stdio, time frequency, eax, edx, cpu cycles, asm, unistd, rdtsc, ncyc, movlMay 10
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
implementation, api, sleep, linux, third party, target time, mask, kernel, time signal, process affinity, python libraries, machine utilization, multiprocessingMay 5
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
lt, amp, sleep, cpu time, return result, stdlib, printf, stdio, cpu number, time frequency, eax, edx, asm, unistd, rdtsc, ncycMay 10
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. ..
public string, public void, utilization system, virtual machine, new technology, share information, system memory, memory usage, first class, system cpu, machine memory, cpu utilization, physical memory, freememory, dynamic link library, technology timeMay 14
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
lt, stat, cmd, time time, sleep, day before yesterday, duration, 2s, usr bin, beep, sleep 2, os system, cpu usage, irritability, time print, matrix 6, neo 39May 22
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
lt, principle, quotation marks, carriage return, hook, system boot, process management, task manager, start menu, default number, core system, system configuration utility, dual core cpu, cpu core, bios, hyper threading technology, boot ini, cpu configuration, core multiplexing technology, f2 keyMay 27
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
background data, execution time, processing time, running time, multi thread, system architecture design, hardware environment, software environment, cpu core, minicomputer, experimental conditions, pc server, sas software, suitable value, series cpu, physical simulation, optimum configuration, optimal settings, empirical data, refeJune 6
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,
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
cache memory, exec, page cache, libs, cache size, hk, heap space, stack space, disk space, physical memory size, memory system, cpu usage, library function, system cache, library functions, kernel memory, freelist, memory mapping, robin page, document setsJune 19
(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
grep, operating system, command cat, red hat enterprise, enterprise linux, lm, fri, cpu number, siblings, system kernel, mode support, information command, view cpu, xeon, physical id, model cat, cpu model, cpu cores, core threads, nucleiJuly 3
maven struts 2unicode pdf to word unicode conversion using xpdforder of model scope in springtomcat6 datasource example java driver URL eclipsehttp: url.hexun.com 2pEfqhtttp: t.cn rwkfy9s125.88.19.71:308 greescm topbaseframe.doHTTP: 203.95.5.90:7001http: t.cn R2wPbOqhttp: 1.1.186.192