dstat is a versatile replacement for vmstat, iostat, netstat, nfsstat, and ifstat. It includes various counters (in separate plugins) and allows you to select and view all of your system resources instantly; you can, for example, compare disk usage in combination with interrupts from your IDE controller, or compare the network bandwidth numbers directly with the disk throughput (in the same interval). License: GNU General Public License (GPL) Changes: Various improvements were made to internal infrastructure. C plugins are now possible too. New topcpu, topmem, topio/tiobio, and topoom process plugins were added along with new innodb, mysql, and mysql5 application plugins. A new vmknic VMware plugin was added. Various fixes and improvements were made to plugins and output.

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