• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer navigation

The Geek Diary

  • OS
    • Linux
    • CentOS/RHEL
    • Solaris
    • Oracle Linux
    • VCS
  • Interview Questions
  • Database
    • oracle
    • oracle 12c
    • ASM
    • mysql
    • MariaDB
  • DevOps
    • Docker
    • Shell Scripting
  • Big Data
    • Hadoop
    • Cloudera
    • Hortonworks HDP

mpstat Command Examples in Linux

by admin

“mpstat” is a command-line tool that is used to monitor CPU utilization on Linux and Unix-like systems. It provides information about CPU utilization, including the utilization of individual cores, the utilization of individual processes, and the utilization of the system as a whole.

The mpstat command is a part of the Sysstat set of utilities. The mpstat command is used to report per processor statistics in a tabular format.

$ mpstat 1 1 
 
CPU minf mjf xcal  intr ithr  csw icsw migr smtx  srw syscl  usr sys  wt idl 
  0  672   0 2457   681   12  539   17   57  119    0  4303   18  10   0  73 
  1   90   0 1551   368   22  344    6   37  104    0  3775   17   4   0  79 
  2   68   0 1026   274   14  217    4   24   83    0  2393   11   3   0  86 
  3   50   0  568   218    9  128    3   17   56    0  1319    7   2   0  92 
  4   27   0  907   340   12  233    3   22   72    0  2034    9   2   0  88 
  5   75   0 1777   426   25  370    5   33  111    0  4820   22   4   0  74

In the preceding output of the mpstat command, each row of the table represents the activity of one processor. The first table shows the summary of activity since boot time. The important column that is relevant from a DBA’s perspective is the value in the smtx column. The smtx measurement indicates the number of times CPU failed to obtain the mutual exclusion lock or mutex. Mutex stalls waste CPU time and degrade multiprocessor scaling.

A general rule of thumb is if the values in the smtx column are greater than 200, then it is a symptom and indication of CPU bottleneck issues that need to be investigated.

mpstat Command Examples

1. To report the processor stats:

# mpstat 2 10 

2. To report all processor stats:

# mpstat -A 2 10 

3. To get the processor number for which the stats are displaying:

# mpstat -P 2 10 

4. To report the CPU utilization stats:

# mpstat -u 2 10 

5. To get the version info:

# mpstat -V 

Conclusion

By default, mpstat returns combined averaged stats for all CPUs. Flag -P can be used to get details of specific CPUs. The following command will display statistics for processor one (0) and processor two (1), and update at an interval of 3 seconds:

$ mpstat -P 0,1 3

mpstat Command Examples in Linux

Filed Under: Linux

Some more articles you might also be interested in …

  1. jpegoptim for image optimization
  2. How to use wget to download file via proxy
  3. CentOS / RHEL 7 : How to configure cache-only nameserver
  4. mke2fs: command not found
  5. How to Create and Mount Btrfs Snapshots
  6. Basic Linux File system tutorial – ext2, ext3, ext4, JFS and XFS
  7. asciiart Command Examples in Linux
  8. enum4linux Command Examples in Linux
  9. Starting iptables Fails with Error “Another app is currently holding the xtables lock”
  10. apt-key Command Examples in Linux

You May Also Like

Primary Sidebar

Recent Posts

  • powertop Command Examples in Linux
  • powertop: command not found
  • powerstat: command not found
  • powerstat Command Examples in Linux

© 2023 · The Geek Diary

  • Archives
  • Contact Us
  • Copyright