websphere performance monitoring tools

I personally think that a good software engineer must master certain test skills. Some development engineers may think that testing is a test engineer's business, not a development engineer. This development engineer is missing a leg, leaving the test engineer, how do you prove that your program is not a problem.Here are the performance test tools I've collected for the next two days, and if you know other

Deny from all Allow from 172.16.16.25 Directory> After you have made changes to the above configuration, don't forget to restart Apache. # Service Apache2 Reload Four, Monitorix screen:Here are some screens, see.Monitorix Web InterfaceSystem load average value, active process, and memory allocation.Global kernel UsageKernel usage per processordisk drive temperature and health statusFile system usage and input/output activityEth0 Interface TrafficSystem service Re

, OpenBSD, and Solaris. You can download the Iperf Win32 installer on Nlanr, while the Java GUI version (JPERF) can be downloaded from sourceforge. To measure Wi-Fi performance, you may need to install iperf--This is your test server in the upstream position of the Ethernet host of the Access point (AP) being tested. Next, install iperf--on one or more Wi-Fi notebooks that will be your test client. This is the typical application network between the

,GETDATE()),0)> -) or(p.blocked 0 andP.waittime/1000.0/60.0 > -) )This leaves only the non-blocking but long-running SQL requests not being monitored. If you must be fully monitored, you can choose to turn on tracing and then analyze the trace file.two . dead LockDeadlock monitoring can be done by monitoring SQL Server errorlog, but you need to turn on the deadlock trace flag in advance. The

Monitor Linux server performance with Munin Monitoring the performance of LINUX hosts is a complex operation, which depends on command line tools and centralized data. Analysis may be very difficult, and a large amount of data is required to establish a relationship to draw a conclusion. Fortunately, we can use some ex

-line utility runs completely in interactive mode, and can Easily toggle statistics using shortcut keys.You can use the following Nmon keyboard shortcuts to display different system stats:q: To stop and exit Nmonh: To see Help screensc: See CPU statsm: See Memory statsd: See Disk Statsk: See Kernel statsn: See network statsN: See NFS statsj: See File system statst: See Top processV: See Virtual memory statsv: Verbose modeCheck CPU by ProcessorIf you would like to collect some statistics on CPU

of setting method and level, one is by adding –slowms boot parameter configuration. The second is to invoke Db.setprofilinglevel with the second argument: Db.setprofilinglevel (level, SLOWMS) 2. Query Profiling Records Unlike MySQL's slow query log, the MongoDB profile record is directly present in the system DB, and the record location is System.profile, so we'll just have to check the collection record to get our profile records. List profile records with execution times longer

System optimization is a complex, complex, and long-term task. The following subsystems are usually monitored: CPU, Memory, IO, Network, etc. I. CPU performance indicators CPU utilization: User Time Context switch: It is associated with the CPU usage. If the CPU usage is in good state, a large number of context switches are acceptable. Runnable queue: three threads per processor.Monitoring tools Vmstat $ V

All the content in this article is based on JDK 5, which may be different if JDK 6 is used.In the past few days, we have done some performance monitoring work, some of which are worth recording:JDK itself provides many tools based on command lines and guis. It is very useful to learn to apply them rationally.Jmap is a command line program that is used to view the

CentOS7 Performance Monitoring System Installation Directory System description. Development environment. Before. Install the influxdb database. Install collectd Install Grafana FAQ Influxdb web interface does not respond. System descriptionTo create a beautiful real-time monitoring system like New Relic, we only need the three InfluxDB, collectd, and Grafana

libraries that the SDK relies on to your project, which is the following 4 libraries: Coretelephony.framework Security.framework Systemconfiguration.framework Libz.dylib When this is done, it's almost complete, just add the following files to the Cloud app in the APPDELEGATE.M file:Then add the following snippet of code to the didfinishlaunchingwithoptions method to complete the app integration.Recompile the project and run the app on the iphone, if the steps above are

A disk is usually the slowest subsystem of a computer, and it is also the most prone to performance bottlenecks, because the disk is the farthest from the CPU and the CPU access to the disk involves mechanical operations, such as rotating shafts and track searching. The speed difference between hard disk access and memory access is calculated by an order of magnitude, just like A disk is usually the slowest subsystem of a computer, and it is also the

hard disk and the memory.Memory pagesPrevious Linux performance monitoring: memory mentions that the IO between the RAM and the hard disk is in pages, and the size of the 1 page on the Linux system is 4K. You can view the default page size of the system with the following command:$/usr/bin/time-v Date ... Page size (bytes): 4096 ...Missing pages InterruptLinux uses virtual memory to greatly expand the prog

There are a lot of performance tools on the Linux platform, a dazzling, long-term groping and experience finding the best thing to use is the proven, simple gadgets. Brendan D. Gregg, a system performance expert, updated his famous talk (Linux performance Tools) and slides o

program automatically creates a Slice.dat file in the current directory that contains the retransmission information every 15 seconds:# Tcptrace-xslice network.dmp# cat slice.dat date segs bytes Rexsegs rexbytes new Active------- --------------------------------------------------------16:58:50.244708 85055 4513418 0 0 6 616:59:05.244708 110921 5882896 0 0 0 216:59:20.244708 126107 6697827 0 0 1 316:59:35.244708 151719 8043597 0 0 0 216:59:50.244708 37296 19 80557 0 0 0 317:00:05.

Linux performance monitoring study notes www.2cto.com Linux performance monitoring is generally divided into these aspects: 1. CPU 2. Memory 3. IO 4. Network these four aspects are independent of each other but affect each other. Common performance

the program automatically creates a Slice.dat file in the current directory that contains the retransmission information every 15 seconds:# tcptrace-xslice network.dmp# cat slice.dat date segs bytes Rexsegs rexbytes n EW Active---------------------------------------------------------------16:58:50.244708 85055 4513418 0 0 6 616:59:05.244708 110921 5882896 0 0 0 216:59:20.244708 126107 6697827 0 0 1 316:59:35.244708 151719 8043597 0 0 0 216:59:50.2 44708 37296 1980557 0 0 0 317:0

ArticleDirectory Htop Iftop Dstat Original article link In Linux, CPU, memory, and other system statuses can be viewed using the TOP command, or graphical tools such as gnome-system-monitor. However, if you want to know more detailed information, such as the process tree and the specific use of the network, these tools will be powerless. In this article, we will introduce several

Linux performance monitoring and analysis---CPUCPU Performance Metrics1. Percentage of CPU used by user processes2. System processes using CPU ratio3. WIO, the rate at which the CPU is idle while waiting for I/O.4. CPU Idle Rate5. Ratio of CPU for context switching6,nice7,real-time8, the length of the running process queue9, average loadThe

CPU performance indicators 1. CPU usage ratio of user processes 2. CPU usage ratio of System Processes 3. WIO, waiting for I/O is the ratio of the CPU in idle state. 4. CPU idle rate 5. Percentage of CPU used for context switching 6. Nice 7. Real-time 8. Length of the running process queue 9. Average Load Tools commonly used in Linux to monitor CPU performance i