What is difference between iostat and vmstat?

vmstat command (also known as virtual memory statistic tool) shows information about processes, memory, disk, and CPU activity in Linux, whereas the iostat command is used to monitor CPU utilization, system input/output statistics for all the disks and partitions.

What is vmstat command used for?

The vmstat command (short for virtual memory statistics) is a built-in monitoring utility in Linux. The command is used to obtain information about memory, system processes, paging, interrupts, block I/O, disk, and CPU scheduling. Users can observe system activity virtually in real-time by specifying a sampling period.

In which package vmstat command is available?

Top 50+ Linux Commands In case your system does not have the vmstat command, then no worries, as it comes under the package of ‘sysstat’ .

Which vmstat command is used to show all disk statistics?

Example: The figure given below shows the table of various event counters. Disk Statics: This command is used to display all disk statistics.

What is vmstat Linux?

Virtual memory statistics reporter, also known as vmstat , is a Linux command-line tool that reports various bits of system information. Things like memory, paging, processes, IO, CPU, and disk scheduling are all included in the array of information provided.

What is Linux iostat?

The iostat command is used for monitoring system input/output device loading by observing the time the devices are active in relation to their average transfer rates. The iostat command generates reports that can be used to change system configuration to better balance the input/output load between physical disks.

What is Linux iostat command?

What is Si and so in vmstat?

(-a option) Swap si: Amount of memory swapped in from disk (/s). so: Amount of memory swapped to disk (/s). IO bi: Blocks received from a block device (blocks/s).

How do I install iostat?

Steps to Install iostat and mpstat command on Linux(RHEL/CentOS 7/8)

  1. Step 1: Prerequisites.
  2. Step 2: Update Your Server.
  3. Step 3: Install Sysstat Package.
  4. Step 4: Verify Package Installation.
  5. Step 5: Check iostat and mpstat version.
  6. Step 6: Checking I/O Performance Using iostat.
  7. Step 7: Checking Processor Stats Using mpstat.

How do I check IO utilization on Windows?

Follow the steps from this site:

  1. Visit Microsoft’s Sysinternals web site and download Process Explorer.
  2. After you have started Process Explorer, click on the View menubar item and then Select Columns.
  3. Click on the Process I/O tab and check: Reads.
  4. Hit OK.
  5. You will now see the new columns listed for each process.

What is R and B in vmstat?

Meaning of the individual Values. (Source man vmstat): Procs r: The number of processes waiting for run time. b: The number of processes in uninterruptible sleep.