Το θέμα με τον SQL Server δεν είναι τόσο το δύκτιο καθώς είναι ο 4ος παράγοντας. Δεν υπάρχουν συγκεκριμένοι μετρητές για τον SQL Server παρά μόνο οι κλασσικοί που υπάρχουν έτσι μπορείς να μετρήσεις με τους παρακάτω:
Network InterfaceBytes Total/sec
Threshold: Sustained values of more than 80 percent of network bandwidth.
Significance: This counter indicates the rate at which bytes are sent and received over each network adapter. This counter helps you know whether the traffic at your network adapter is saturated and if you need to add another network adapter. How quickly you can identify a problem depends on the type of network you have as well as whether you share bandwidth with other applications.
Network InterfaceBytes Received/sec
This counter indicates the rate at which bytes are received over each network adapter. You can calculate the rate of incoming data as a part of total bandwidth. This will help you know that you need to optimize on the incoming data from the client or that you need to add another network adapter to handle the incoming traffic.
Network InterfaceBytes Sent/sec
This counter indicates the rate at which bytes are sent over each network adapter. You can calculate the rate of incoming data as a part of total bandwidth. This will help you know that you need to optimize on the data being sent to the client or you need to add another network adapter to handle the outbound traffic.
ServerBytes Total/sec
This value should not be more than 50 percent of network capacity.
This counter indicates the number of bytes sent and received over the network. Higher values indicate network bandwidth as the bottleneck. If the sum of Bytes Total/sec for all servers is roughly equal to the maximum transfer rates of your network, you may need to segment the network.
Processor% Interrupt Time
This counter indicates the percentage of time the processor spends receiving and servicing hardware interrupts. This value is an indirect indicator of the activity of devices that generate interrupts, such as network adapters.
Network Interface(*)Output Queue Length
This counter checks to see how many threads are waiting on the network adapter. If there are a lot of threads waiting on the network adapter, then the system is most likely saturating the network I/O most likely due to network latency or network bandwidth.
Output Queue Length is the length of the output packet queue (in packets). If this is longer than two, there are delays and the bottleneck should be found and eliminated, if possible. Since the requests are queued by the Network Driver Interface Specification (NDIS) in this implementation, this will always be 0.
/*antonch*/
Antonios Chatzipavlis