solaris 10 performance monitoring

of monitoring the entire disk. Where,AVG. Disk SEC/readAndAVG. Disk SEC/WriteIt is two counters that mainly consider disk I/O performance. They do not need additional information for reference and can directly determine the average latency of I/O requests. AVG. Disk SEC/read Describes the average time (in seconds) required to read data from a disk ). AVG. Disk SEC/read is the average time

, starting from 08 o'clock in the morning.Example 1:Automatically collect data by day:Add a record to the crontab:0 0 * * * nmon-s300-c288-f-m/home/>/dev/null 2>1:300*288=86400 seconds, just a day's data.Example 2:A, Execution command: #crontab-EB. Add the following command on the last line:0 8 * * 1,2,3,4,5/nmon/scriptn/mon_x86_rhel52-f-n-m/nmon/log-s 30-c 1200Said:From Monday to Friday, from 08 o'clock in the morning, monitoring

5664 12037 4DENTUNUSD: Number of unused entries in the directory cacheFILE-NR: The number of file handles (files handle) usedINODE-NR: Number of uses of the index node handle (inode handle)PTY-NR: Number of Pty used3) memory and swap space monitoringSample every 10 seconds, 3 consecutive samples, monitoring memory paging:Sar-r 10 3Kbmemfree: This value is basica

Introduction and deployment guide of nmon performance monitoring tools1. Brief Introduction to nmon Nmon is a performance monitoring tool developed by IBM for the operating system layer. It is available in two versions: aix and linux.2. nmon2.1 and nmon for aix Https://www.ibm.com/developerworks/community/wikis/home? L

2015-12-27 iOS DevelopmentFor every system administrator or network administrator, it is very difficult to monitor and debug Linux system performance issues every day. I've had 5 years of experience working with Linux administrators and know how to monitor the system to keep it running properly.To do this, we have written 20 command-line system monitoring tools that are useful and most commonly used by Linu

Article Title: I/O about Linux performance monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. I believe you are familiar with Linux performance monitoring. For I/O, let's f

and schema_unused_indexes View indexes)SELECT * FROM Sys.schema_redundant_indexes\gSELECT * from Sys.schema_unused_indexes;(if there are redundant indexes and long unused indexes, they should be cleaned up in time)---View the table self-increment ID usage:SELECT * FROM Schema_auto_increment_columns\g(with the Schema_auto_increment_columns view, you can easily find out the self-increment usage of each table, even to the self-increment of a table)---The SQL statement that monitors the full table

I. OverviewMonitoring is usually divided into machine monitoring and service monitoring, machine monitoring is the basic monitoring, the purpose is to obtain the current state of operation of the system, service monitoring is the main purpose, but also the most should be con

Monitoring Linux system performance every day is a daunting task for every system/network administrator. After 5 years of Linux system administrators in the IT industry, I found it's not easy to monitor and keep the system up and running, so I've summed up 8 very useful command-line tools for Linux/unix system administrators. These commands support all Linux systems and can be used not only to monitor the s

In Web site performance optimization, we often have to check the various indicators of the server in order to quickly find the black sheep. In most cases, we use monitoring software such as cacti, Nagois, or Zabbix, but this kind of software is cumbersome to install, and in a small server we want to find out as quickly as possible, or use some of the commands that Linux provides. 1. Memory Check: free-m N

For system and network administrators, it is a heavy task to monitor and debug the performance of Linux systems on a daily basis. After 5 years working as an administrator in the IT field as a Linux system, I gradually realized how difficult it was to monitor and keep the system up and running. For this reason, we have written a list of the 18 most commonly used command-line tools that will help each Linux/unix system administrator work. These command

normally, it is an effective assistant to improve system operation efficiency and secure operation of servers. Ifstat. Ifstat is a network interface monitoring tool that monitors the I/O status and CPU status. You can define one or more network interfaces and add options to make the results easier to observe. Sysctl. Sysctl is actually used to configure Kernel Parameters stored in/proc/sys /. The parameters of different kernel versions will change. H

time may be caused by a single (or multiple) overloaded processor, many other tools can be used to narrow the cause of the load. to delve deeper into processor usage, the 3 tools described below can provide many different understandings of CPU utilization: Vmstat, Iostat, and top. Each of these tools focuses on different aspects of system monitoring, but can get a different view of the current usage of the processor. In particular, the next step i

same as the following, the block exercise is no longer one by one listed: ====================================================================== Sybase Adaptive Server Enterprise System Performance ====================================================================== Server version:adaptive Server Enterprise/11.9.2/1031/p/nt (IX86)/os 3. Server Name:server is unnamed Run Date:may 28, 2001 Statistics cleared at:15:57:27 Statistics sampled at:

The JDK itself provides many convenient JVM performance tuning monitoring tools, in addition to the integrated VISUALVM and Jconsole, there are JPS, Jstack, Jmap, Jhat, Jstat and other small tools, this blog hope to play a useful, Let's start to understand the common tools for tuning JVM performance.In real-world enterprise Java development, sometimes we encounter these problems: OutOfMemoryError,

Linux disk performance monitoring In linux, many commands for viewing processes are also very powerful. Commonly Used Commands include: ps top However, the disk performance monitoring is not so uniform. The following lists some disk monitoring commands, which only serve as a

Overview When the system bugs need to locate the problem, knowledge, experience is the key foundation, the data is the basis, the tool is the use of knowledge processing data means. The data mentioned here include: Run log, exception stack, GC log, thread snapshot (threaddump/javacore file), heap dump Snapshot (heapdump/hprof file), etc. Using the appropriate virtual machine monitoring and analysis tools can accelerate our ability to analyze data and

Shortcomings of TPVWe all know that.IBM's WebSphere Application Server (WAS) has its own TPV (Tivoli performance Viewer) after V5Used to monitor the health of wasIncludes resources such as JVM memory usage, database connection pool, Web container thread pool, applications, user sessions, transactions, caches, and moreBut the main shortcomings of TPV are:(1) TPV itself is a graphical toolIf you want to use remoteWe can only use extra!. X and other grap

As we all know, there are many factors that affect the network, including latency, conflict, and blocking. Next, let's take a look at the specific Network situation under Linux performance monitoring, and add some of our previous articles. We hope to provide more help to you in terms of Linux performance monitoring.Most Ethernet networks are adaptive because diff

value is less than 5m, SQL Server may have a performance bottleneck due to lack of memory. 4.Physical Disk:% Disk Time This counter records how busy the disk is (the entire disk array or the physical disk is busy). Theoretically this value should be less than 55%, if it lasts more than 55%, that indicates that there may be an IO bottleneck on this server. If only occasionally appear several times, that does not need to worry, but can correspond to fi