Re: [nfs-utils RFC PATCH 00/15] A few enhancements to mountstats.py

[Steve Dickson <SteveD@redhat.com>]

On 11/05/2014 12:00 PM, Scott Mayhew wrote:
> The following patches add a couple of enhancements to mountstats.py.  I
> also fixed a few bugs I encountered along the way.  Highlights include:
> 
> - added support for -f/--file to allow stats to be parsed from an
>   aritrary input file instead of /proc/self/mountstats
> 
> - added support for -S/--since to show just the changes that have
>   occurred between the current and a previous set of statisics (works
>   with and without the -f option)
> 
> - added support for -R/--raw to generate 'raw' statistics (i.e. in the
>   same format as /proc/self/mountstats).  It's intended to be used with
>   the -f and -S options.
The mountstats(8) will need to be updated with these new flags... 
You could probably just use the verbiage from the usage messages

Ping me if want some help with the archaic nroff notation ;-)    
> 
> - implemented the ms-nfsstat command to generate client-side
>   nfsstat-like statisics (only works with a single mountpoint)
> 
> My motivation for these changes was so that I could take various copies
> of /proc/self/mountstats and massage them into data that I could feed
> into the 'report' option of Dros's nfsometer tool for scenarios where
> it's not feasible to run nfsometer itself (e.g. systems where we can't
> start with an 'idle' state (i.e. no NFS filesystems initially
> mounted), systems with multiple NFS filesystems mounted, and workloads
> that can't easily be boiled down into an nfsometer workload file or run
> via the custom workload environment variables).
Thanks for doing this!

steved. 
> 
> Scott Mayhew (15):
>   mountstats: Fix up NFS event counters
>   mountstats: Add lists of various counters
>   mountstats: Refactor __parse_nfs_line and __parse_rpc_line
>   mountstats: Refactor compare_iostats
>   mountstats: Convert existing option parsing to use the getopt module
>   mountstats: Make ms-iostat output match that of nfs-iostat.py
>   mountstats: Make print_iostat_summary handle newly appearing mounts
>   mountstats: Add support for -f/--file to the mountstats and ms-iostat
>     commands
>   mountstats: Add support for -S/--since to the mountstats and ms-iostat
>     commands
>   mountstats: Fix IndexError in __parse_nfs_line
>   mountstats: Allow mountstats_command to take a variable number of
>     mountpoints
>   mountstats: Add support for -R/--raw to mountstats_command
>   mountstats: Implement nfsstat_command
>   mountstats: Remove the --start and --end options
>   mountstats: Update the help output
> 
>  tools/mountstats/mountstats.py | 730 ++++++++++++++++++++++++++++++-----------
>  1 file changed, 544 insertions(+), 186 deletions(-)
>  mode change 100644 => 100755 tools/mountstats/mountstats.py
>