aix monitoring commands

) ├─{MYSQLD} (24689) ├─{mysqld} (27329) └─{MYSQLD} (27331)[10-sar]The SAR command is a Swiss Army knife in the system monitoring tool.The SAR command is actually comprised of three programs, the SAR (for displaying data), SA1 (for collecting data), and SA2 (for storing data).The SAR can cover CPU utilization information, memory paging information, network IO transmission information, process creation behavior, and storage d

Guide Below is a list of the 10 basic network and Monitoring commands that each Linux user should know about.Network and Monitoring commands are similar to these:hostname, Ping,ifconfig, Iwconfig, netstat, nslookup, traceroute, finger, telnet, Ethtool is used to view the Linux server IP address, manage server net

) ├─{MYSQLD} (24689) ├─{MYSQLD} (27329) └─{MYSQLD} (27331) [10-sar]The SAR command is a Swiss Army knife in the system monitoring tool.The SAR command is actually comprised of three programs, the SAR (for displaying data), SA1 (for collecting data), and SA2 (for storing data).The SAR can cover CPU utilization information, memory paging information, network IO transmission information, process creation behavior, and storage device behavior.The b

Common Linux System monitoring commandsBlog Category: Linux Server Record your common Linux system commands, easy to access later, found that memory is getting worseFind the most CPU-consuming Java Thread PS commandCommand: PS-MP pid-o thread,tid,time or PS-LFP pidResults show:The purpose of this command is to obtain some information about the thread that corresponds to a process. For exam

the percentage of CPU, the higher the ratio, the more saturated the description When the value of 1.avgqu-sz is low, the equipment utilization is higher 2. When the value of%util is close to 1%, it indicates that the device bandwidth is already full Iv. Performance Analysis HelpTo determine the system bottleneck, it is sometimes necessary to combine several SAR command options:1, suspected CPU bottleneck, you can use Sar–u and sar–q to view2. Suspected memory bottleneck, can use Sa

priority The total amount of virtual memory used by the VIRT process, in kilobytes. Virt=swap+res The size, in kilobytes, of the physical memory used by the RES process and not swapped out. Res=code+data SHR shared memory size, in kilobytes S process state. d= non-disruptive sleep status r= run s= sleep t= track/stop z= zombie Process %cpu percentage of CPU time that was last updated to current Percentage of physical memory used by the%MEM process Total CPU time used

the existence of the various areas of the JVM, online repayment of memory anomalies can be used to do a general understanding of this command2.jmap-histo:This command will call out all classes and sort them by the size of the memory consumed.3.jmap-dump:Explanation under Jmap-f-dump:format=b,file=payment.bin 30018: Using the Hprof binary form, the output process is 30018 of the JVM's heap content to the file Payment.binJhatis a command for parsing the Java heap that can display objects in the h

Original: Chapter III-Monitoring SQL Server using system functions, stored procedures, and DBCC SQLPERF commands (3)This is the last article in this series. How the DBCC command will be used to monitor the usage of SQL Server log space.Objective:Each database must have a transaction log. The transaction log records each DML operation and is applied to the SQL Server database, and the log grows very fast if

, subscriber_db, Subscription_ Type ) b on a.publication_id = b.publication_id INNER JOIN sys.servers C (NOLOCK) on b.subscriber_id = C.serve r_id WHERE a.agent_type = 1 the above automatically generates stored procedures for each published command that is not distributed, and executes to see the commands and estimated time that each publication waits for distribution: EXEC distribution.sys.sp_replmonitorsubscriptionpendingcmds @publisher = n ' p

about the CPU, which is stored in the/proc/stat file.7 FreeThe free command displays the idle, used physical memory and swap memory in the Linux system, and the buffer used by the kernel.8 StraceStrace is commonly used to track system calls and received signals when a process executes.9 tcpdumpTcpdump, is: The dump the traffic on a network, according to the user's definition of the packet interception of packets of data packet analysis tool.Ten netstatThe netstat command is used to print the st

The Vmstat command is the most common Linux/unix monitoring tool that can show the status of a server at a given time interval, including server CPU utilization, memory usage, virtual memory exchange, IO Read and write situations. This command is I see Linux/unix favorite commands, one is Linux/unix support, two is compared to top, I can see the whole machine CPU, memory, IO usage, rather than just see the

queue.%UTIL:I/O requests account for the percentage of the CPU, the higher the ratio, the more saturated the description.1. When the value of Avgqu-sz is low, the equipment utilization is higher.2. When the value of%util is close to 1%, it indicates that the device bandwidth is already fullTo determine the system bottleneck, it is sometimes necessary to combine several SAR command options.Suspected CPU bottlenecks, sar-u and sar-q can be used to viewSuspect memory bottlenecks and can be viewed

H: Switch to show all threads1: Show individual CPU runs (similar commands and Mpstat)ps-ef or ps-aux Show all processes, except for different display stylesps-elf | grep java | wc-l count Java threadsConvert Java to httpd to count Apache threadsFind, DF, du, iostat disk IO commandfind/home/admin/-name "Hsf.log" to find a file named Hsf.log under the/home/admin/pathdf-ha View the disk usage of the file systemDu-ak | sort-t$ ' \ t '-l1-nr-k2-r All fil

would like to see the system process accounted for 20% or 30%, user processes accounted for 70% or 80%.If the%usr>80 for a long time indicates that CPU resources are basically consumed by user processes, there is a noticeable bottleneck in the CPU.If the%USR value is rarely >80, the system's possible bottlenecks exist in the middle of the CPU, memory, or I/O.If the%wio value is >15, this is a signal that the disk has a bottleneck.Eight,netstat – Network Status statisticsUsed to monitor network

statistical data of the request;- S : Displays swapped relevant statistical data; --tcp--udp--raw--socket--IPC--top-cpu : Displays the most occupied CPU the process;--top-io : Most occupied io the process;--top-mem : The most memory-intensive process;--top-lantency : the most deferred process; Kill command: -Terminate a process used to send signals to a process for management of the process, and displays the current system available signals:#5: vmstat– Virtual Memory Statistics vmstat is vir

The atop command is a monitoring command for a terminal environment. It shows the synthesis of various system resources (CPU, memory, network, I/O, kernel), and is color-coded in the case of high loads.Install Rpmforge FirstFor Rhel/centos 6 32-64 Bit# # Rhel/centos 6-Bit OS # # wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm# RPM-UVH rpmforge-release-0.5.2-2.el6.rf.i686.rpm## Rhel/centos 6 Bit OS # # wget http://p

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/ LifeTen 248./runtime/Macros One 840./runtime/Ftplugin A the./runtime/plugin - 5952./runtime/Syntax - 2120./runtime/Tutor the -./runtime/Tools - 6592./runtime/docwhere each line of output starts is a numeric value, which is the number of disk blocks that each file or directory occupies. Note that the list starts at the bottom of the hierarchy of a directory, and then moves up by file, subdirectory, and directory. The use of this is not very useful, here are a few parameters to make it easier

Tags: path tree includes occupy specified instruction Bubuko indicates terminalI. Description of the OrderThe PS command is the most basic and very powerful process view command. Use this command to determine which processes are running and running, whether the process is complete, if the process is dead, which processes are consuming too many resources, and so on. In short, most of the information can be obtained by executing the command.Second, parameter description PS A: Displays all

partition SWPD Number of wait processes, B increased Read-write Io,bi Bo increased Si so greater than 0 starts reading from the hard drive CPU wait time for IO wait, WA increased 2. Insufficient memory Start using SWPD,SWPD not for 0 Si so greater than 0 starts reading from the hard drive 3. Io bottleneck Read-write Io,bi Bo increased by more than 2000 CPU wait time for IO wait, WA increased by more than 20 SY system call time is long, IO