In Windows nfs client, nfs_rpc_process_request(lookup/readdir etc) sometimes takes more than 150 seconds(v3_full).

I think this is weird, because 150 seconds too long.

Is anyone know what's going on during the period? Thanks in advance.

Ganesha server info
    ganesha version: V2.7.6
    FSAL           : In house
nfs client info
    nfs version    : nfs v3
    client info    : Windows server 2012