SQL Server System Statistical Functions

@@TIMETICKS
Number of millionths of a second in a timer tick.
@@CONNECTIONS
The number of connections or attempted connections.
@@CPU_BUSY
Timer ticks that the CPU has been working for SQL Server.
@@IDLE
Time in timer ticks that SQL Server has been idle.
@@IO_BUSY
Timer ticks that SQL Server has spent performing I/O operations.
@@PACKET_ERRORS
Number of network packet errors that have occurred.
@@PACK_RECEIVED
Number of packets read from the network.
@@PACK_SENT
Number of packets written to the network.
@@TOTAL_ERRORS
Number of read/write errors during I/O operations.
@@TOTAL_READ
Number of disk reads.
@@TOTAL_WRITE
Number of disk writes.

Usage:



Example : (Get SQL Server I/O)