Hello! We've been experiencing significant nfsd performance problems with a customer who has a deeply nested filesystem hierarchy, lots of subdirs, some of them 60-80 dirs deep (!!), which leads to an exponentially slowdown with nfsd accesses. Some of the issues have been addressed by implementing a better directory walker via multiple dir fds and openat() (instead of just cwd+open()), but the nfsd side still was a pretty dramatic issue, until we bumped #define NFSD_MAX_OPS_PER_COMPOUND in linux-6.7/fs/nfsd/nfsd.h from 50 to 96. After that the nfsd side behaved MUCH more performant. Dan -- Dan Shelton - Cluster Specialist Win/Lin/Bsd
