Re: [NFS] [ltc-perf] draft of nfs event hook

[Li Guanglei <guanglei@cn.ibm.com>]

> 
> Have you done this with a local file system?  I assume yes, and that
> you just described the general approach you have taken with other file
> systems.  I think getting the same kind of data and trace points from
> the NFS client as you added to local file systems would be good.
> 
> Capturing VFS and address space entry points is definitely useful and
> is similar to local file systems.  At the bottom of the NFS client is
> the RPC client, and it acts just like the block I/O layer does for
> local file systems.  Would you consider adding trace points in the
> LKET for the RPC client and server?
> 
>>
>>    What I didn't list about NFS operations includes authentication,
>> NFSv4 callback and RPC(I prefer to use a separate set of trace hooks
>> for RPC). I am not sure if these operations are also required to be
>> traced. If I missed some important functions or I listed some
>> redundant functions, please feel free to let me know. Any comments
>> will be highly appreciated.
>>

I didn't list RPC here because I think RPC is not only used by NFS and 
I need another set of RPC trace hooks to address the RPC server and 
client side operations. That will be my plan of the next set of trace 
hooks.

- Guanglei