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Managing System Information, Processes, and Performance in Oracle Solaris 11.1     Oracle Solaris 11.1 Information Library
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1.  Managing System Information (Tasks)

2.  Managing System Processes (Tasks)

3.  Monitoring System Performance (Tasks)

Where to Find System Performance Tasks

System Performance and System Resources

Processes and System Performance

About Monitoring System Performance

Monitoring Tools

Displaying System Performance Information

Displaying System Performance Information (Task Map)

Displaying Virtual Memory Statistics (vmstat)

How to Display Virtual Memory Statistics (vmstat)

How to Display System Event Information (vmstat -s)

How to Display Swapping Statistics (vmstat -S)

How to Display Interrupts Per Device (vmstat -i)

Displaying Disk Utilization Information (iostat)

How to Display Disk Utilization Information (iostat)

How to Display Extended Disk Statistics (iostat -xtc)

Displaying Disk Space Statistics (df)

How to Display Disk Space Information (df -k)

Monitoring System Activities

Monitoring System Activities (Task Map)

Monitoring System Activities (sar)

How to Check File Access (sar -a)

How to Check Buffer Activity (sar -b)

How to Check System Call Statistics (sar -c)

How to Check Disk Activity (sar -d)

How to Check Page-Out and Memory (sar -g)

Checking Kernel Memory Allocation

How to Check Kernel Memory Allocation (sar -k)

How to Check Interprocess Communication (sar -m)

How to Check Page-In Activity (sar -p)

How to Check Queue Activity (sar -q)

How to Check Unused Memory (sar -r)

How to Check CPU Utilization (sar -u)

How to Check System Table Status (sar -v)

How to Check Swapping Activity (sar -w)

How to Check Terminal Activity (sar -y)

How to Check Overall System Performance (sar -A)

Collecting System Activity Data Automatically (sar)

Running the sadc Command When Booting

Running the sadc Command Periodically With the sa1 Script

Producing Reports With the sa2 Shell Script

Setting Up Automatic Data Collection (sar)

How to Set Up Automatic Data Collection

4.  Scheduling System Tasks (Tasks)

5.  Managing the System Console, Terminal Devices, and Power Services (Tasks)


System Performance and System Resources

The performance of a computer system depends upon how the system uses and allocates its resources. Monitor your system's performance regularly so that you know how it behaves under normal conditions. You should have a good idea of what to expect, and be able to recognize a problem when it occurs.

System resources that affect performance are described in the following table.

System Resource
Central processing unit (CPU)
The CPU processes instructions by fetching instructions from memory and executing them.
Input/output (I/O) devices
I/O devices transfer information into and out of the computer. Such a device could be a terminal and keyboard, a disk drive, or a printer.
Physical (or main) memory is the amount of random access memory (RAM) on the system.

Chapter 3, Monitoring System Performance (Tasks) describes the tools that display statistics about the system's activity and performance.