OPTIONS

top

top

top is an administrative command that returns usage statistics for each collection. top provides amount of time, in microseconds, used and a count of operations for the following event types:

  • total
  • readLock
  • writeLock
  • queries
  • getmore
  • insert
  • update
  • remove
  • commands

Issue the top command against the admin database in the form:

{ top: 1 }

Example

At the mongo shell prompt, use top with the following evocation:

db.adminCommand("top")

Alternately you can use top as follows:

use admin
db.runCommand( { top: 1 } )

The output of the top command would resemble the following output:

{
  "totals" : {
     "records.users" : {
                  "total" : {
                          "time" : 305277,
                          "count" : 2825
                  },
                  "readLock" : {
                          "time" : 305264,
                          "count" : 2824
                  },
                  "writeLock" : {
                          "time" : 13,
                          "count" : 1
                  },
                  "queries" : {
                          "time" : 305264,
                          "count" : 2824
                  },
                  "getmore" : {
                          "time" : 0,
                          "count" : 0
                  },
                  "insert" : {
                          "time" : 0,
                          "count" : 0
                  },
                  "update" : {
                          "time" : 0,
                          "count" : 0
                  },
                  "remove" : {
                          "time" : 0,
                          "count" : 0
                  },
                  "commands" : {
                          "time" : 0,
                          "count" : 0
                  }
          }
}
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