![[wl_client_clientread.png|256]] - **Description**: The backend process is idling while waiting for the client application to send a command via the network. Technicially, the process is blocked on an OS-level `poll()` or `recv()` system call waiting to read incoming bytes from the connected TCP socket. High values often indicate application-side bottlenecks, inefficient client-side architectures, or high network latency. - **Operations**: - [[CustomScanForeignScan]] - **Resources**: [[Network]], [[CPU]]