solaris iostat

about 10.5, and every 3 seconds disk reads about 62KB, writes about: 110KB, this value is not an accurate value, why? Know why? Because of the time period problemThe best test is to find the average number of times or use the method to find the current valueAs shown below:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6B/86/wKiom1Uvfk2jn_KzAAC-70HOJzU414.jpg "title=" 6.png " alt= "Wkiom1uvfk2jn_kzaac-70hojzu414.jpg"/>There are many more detailed extensions for

################ Operation################ Iostat-x 1 10Linux 2.6.18-92. el5xen 02/03/2009AVG-CPU: % USER % nice % System % iowait % steal % idle1.10 0.00 4.82 39.54 0.07 54.46Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-SZ avgqu-SZ await svctm % utilSDA 0.00 3.50 0.40 2.50 5.60 48.00 18.48 0.00 0.97 0.97 0.28SDB 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00SDC 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00SDD 0.00 0.00 0.00 0.00

1.iostat Range of UseThe Iostat command can generate 3 types of reports:(1) Report on CPU usage(2) Report on equipment usage(3) Report on network File System (NFS) usage2. Format description for each type of reportexplanation of the format of the CPU Usage report :%user: The percentage of time the application uses the CPU.%nice: The percentage of time that a high-priority application consumes CPU.By default

Solaris service management, solaris Service Remote logon Protocol Telnet \ ssh. Of course, we can check who has logged on to my system and who can use ftp to record logs. 1. SMF: Service Management Tools Advantages: Automatic Recovery of accidentally terminated Services supports service dependencies. A service can have multiple instances, provides command line management tools, and supports concurrent start

Solaris software manages FTP and solaris software ftp Install Common Software Relationship between applications and system commands: The system command file is located under/bin/sbin or shell commands to complete basic management of the system. Generally, it is run on the Character operation interface; it generally includes command words, command options, and command parameters. The application file is loca

To view or monitor disk read and write performance in Linux, you can use the Iostat command, which is described in this section for its specific use. 1. HDD Read/write performance #查看TPS和吞吐量信息iostat-D-K 1 Device: TPs kb_read/s kb_wrtn/s kb_read kb_wrtnsda 14.54 417.21 368.06 15719357562 13867444535dm-0 104.60 415.64 366.87 15660312

Linux system has a performance problem, generally we can use top, iostat, free, vmstat and other commands to view the initial positioning problems.iostat Common usage:$iostat-D-K 1 #查看TPS和吞吐量信息$iostat-D-x-k 1 #查看设备使用率 (%util), Response time (await)$iostat-C 1 #查看cpu状态Parameters-D indicates that the device (disk) usage

Recently, the company has installed several DELL PE2650 and 2850 servers. The RHLE5.132 system is installed in a unified manner, while the server's SCSI hard disks are all RAID 1. The boss of the company asked for a unified detection report on hard disk I/O. He found many tools in Linux and found that iostat is the most practical. He needs to install sysstat first, that is, yum-y install sysstat; setting up yum servers in the company is not the focus

Introduction to the AIX iostat command 1. determine disk usage $ iostat-T 2 10 System configuration: lcpu = 8 drives = 29 paths = 52 vdisks = 0tty: tin tout avg-cpu: % user % sys % idle % iowait time 0.0 377.0 77.6 6.1 16.2 11: 35: 45 Disks: % tm_act Kbps tps Kb_read Kb_wrtn timehdisk5 0.1 78.0 6080.0 439.0 11: 35: 45hdisk4 79.5 11856.5 453.5 23564 149 11: 35: 45hdisk6 19.0 1664.0 13.0 0 11:35:45 $ % tm_act

Vmstat and Iostat are important two performance monitoring tools for Linux.Vmstat-Brief information on memory, processes, and paging Procs R indicates how many processes are waiting for the CPUb indicates how many processes are hibernating (usually means waiting for I/O such as disk, network, user input, etc.) MemorySWPD how many blocks are swapped out to diskFree How many pieces are idleBuff How many blocks are being used as buffersHow many b

Putty is a very useful open-source terminal software. Supports most remote logon protocols. However, in addition to terminal, Solaris does not seem to have terminal software such as securecrt and putty. Putty is open-source and the code can be downloaded in the http://www.putty.nl/download.html. The following describes how to compile Putty:First, download to putty0.6, go to the Unix directory, and run./configureThis will automatically generate makefi

Use iostat in Linux to monitor the I/O status. We can use sar (1), pidstat (1), mpstat (1), vmstat (8) for monitoring.I. Installation yum install sysstatIi. Parameter explanation FILES /proc/stat contains system statistics./proc/uptime contains system uptime./proc/partitions contains disk statistics (for pre 2.5 kernels that have been patched)./proc/diskstats contains disks statistics (for post 2.5 kernels)./sys contains statistics for block devices (

Install iostat on centos # Yum install sysstat This parameter has never been used before. Now I have carefully studied iostat, because there is a high pressure on an important server, so let's take a look at it. below is the server with too much Io pressure. $iostat -x 1Linux 2.6.33-fukai (fukai-laptop) _i686_ (2 CPU)avg-cpu: %user %nice %system %

During data synchronization and transmission today, if you want to use the iostat command to monitor the I/O status of the disk, this package cannot be found. This package is not installed by default. Haha, there is no way to install it on your own.[Root @ testhost ~] # Iostat-Bash: iostat: command not found Find the sysstat package in the system disk and install

Linux IO Real-time monitoring Iostat command detailedIntroductionThe Iostat is primarily used to monitor the IO load on the system device, iostat the statistics from the start of the system startup when the first run, and then running Iostat displays statistics from the last time the command was run. Users can obtain t

Iostat (1) is the most basic tool for viewing I/O performance on Linux systems, but it can be easily misread for those who are familiar with other Unix systems. For example, Avserv on HP-UX (equivalent to SVCTM on Linux) is the most important I/O metric, reflecting the performance of the hard disk device, which is the time it takes for I/O requests to be sent from the SCSI layer to the SCSI layer after I/O is complete, Not including the wait time in t

IntroductionThe Iostat is primarily used to monitor the IO load on the system device, iostat the statistics from the start of the system startup when the first run, and then running Iostat displays statistics from the last time the command was run. Users can obtain the required statistics by specifying the number and time of the statistics.GrammarIostat [-c] [-d]

Linux Performance Testing Tool iostat is part of the sysstat package. Iostat displays the average CPU time after the system is started, similar to uptime), and displays the usage of the disk subsystem. iostat is used to monitor CPU utilization and disk utilization.Linux Performance Testing Tool iostat% User: user-level

The Linux system has a performance problem, and generally we can view the initial positioning problem by commands such as top, iostat, free, and Vmstat. Where iostat can provide us with rich IO status data. 1. Basic use $iostat-D-K 1 10 Parameter-D indicates that the display device (disk) is using state;-K some columns th

Metrics to measure CPU performance:1, the user uses the CPU situation;CPU runs regular user processesCPU Running niced ProcessCPU running real-time process2, the system uses CPU condition;For I/O Management: interrupts and drivesFor memory management: page swappingUser Process Management: Process start and context switch3,wio: The rate at which the process waits for disk I/O and the CPU is idle.4,CPU idle time, except for the above Wio5,cpu ratio used for context switching6,nice7,real-time8, the