---
name: "nfsstat"
section: "8"
platform: "linux"
package: "nfs-utils"
version: "3.1.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nfsstat/8"
---

# nfsstat(8)

list NFS statistics

## NAME

nfsstat - list NFS statistics

## SYNOPSIS

**nfsstat** \[*OPTION*\]...

## DESCRIPTION

The **nfsstat** displays statistics kept about NFS client and server activity.

## OPTIONS

- **-s, --server**

  Print only server-side statistics. The default is to print both server and client statistics.

- **-c, --client**

  Print only client-side statistics.

- **-n, --nfs**

  Print only NFS statistics. The default is to print both NFS and RPC information.

- **-2**

  Print only NFS v2 statistics. The default is to only print information about the versions of **NFS** that have non-zero counts.

- **-3**

  Print only NFS v3 statistics. The default is to only print information about the versions of **NFS** that have non-zero counts.

- **-4**

  Print only NFS v4 statistics. The default is to only print information about the versions of **NFS** that have non-zero counts.

- **-m, --mounts**

  Print information about each of the mounted **NFS** file systems.

  If this option is used, all other options are ignored.

- **-r, --rpc**

  Print only RPC statistics.

- **-o** *facility*

  Display statistics for the specified facility, which must be one of:

  - **nfs**

    NFS protocol information, split up by RPC call.

  - **rpc**

    General RPC information.

  - **net**

    Network layer statistics, such as the number of received packets, number of TCP connections, etc.

  - **fh**

    Usage information on the server's file handle cache, including the total number of lookups, and the number of hits and misses.

  - **rc**

    Usage information on the server's request reply cache, including the total number of lookups, and the number of hits and misses.

  - **io**

    Usage information on the server's io statistics; bytes read and written.

  - **ra**

    Usage information on the server's read ahead cache, including the ra cache size, the depth of ra cache hits, and ra cache misses.

  - **all**

    Display all of the above facilities.

- **-v, --verbose**

  This is equivalent to **-o all**.

- **-l, --list**

  Print information in list form.

- **-S, --since** *file*

  Instead of printing current statistics,  **nfsstat** imports statistics from *file* and displays the difference between those and the current statistics. Valid input *file*s may be in the form of  **/proc/net/rpc/nfs** (raw client stats), **/proc/net/rpc/nfsd** (raw server stats), or saved output from **nfsstat** itself (client and/or server stats).   Any statistics missing from a saved **nfsstat** output  *file* are treated as zeroes.

- **-Z\[interval\], --sleep=\[interval\]**

  Instead of printing current statistics and immediately exiting, **nfsstat** takes a snapshot of the current statistics and pauses until it receives **SIGINT** (typically from **Ctrl-C**), at which point it takes another snapshot and displays the difference between the two. If *interval* is specified,  **nfsstat** will print the number of **NFS** calls made since the previous report. Stats will be printed repeatedly every *interval* seconds.

## EXAMPLES

- **nfsstat -o all -234**

  Show all information about all versions of **NFS**.

- **nfsstat --verbose -234**

  Same as above.

- **nfsstat -o all**

  Show all information about active versions of **NFS**.

- **nfsstat --nfs --server -3**

  Show statistics for **NFS** version 3 server.

- **nfsstat -m**

  Show information about mounted **NFS** filesystems.

## DISPLAY

The **Flags** output from the **-m** option is the same as the flags give to the **mount** command.

## FILES

- **/proc/net/rpc/nfsd**

  **procfs**-based interface to kernel NFS server statistics.

- **/proc/net/rpc/nfs**

  **procfs**-based interface to kernel NFS client statistics.

- **/proc/mounts**

  **procfs**-based interface to the mounted filesystems.

## SEE ALSO

[**rpc.nfsd**(8)](/rpc.nfsd/8.md). [**nfs**(5)](/nfs/5.md).

## BUGS

The default output has been changed.  To get the old default output you must run **nfsstat --auto -2**.

The function of the **-v** and **-a** options have changed. The **-a** option is now reserved for future use. The **-v** does what the **-a** option used to do, and the new **-\[234\]** options replace the **-v** option.

The **Display** section should be more complete.

Further bugs can be found or reported at  **http://nfs.sf.net/**.

## AUTHOR

Olaf Kirch, \<okir@suse.de\>