I/O stats for lmtp, imap and pop

[Wesley Craig]

I'd think you'd want to add this to telemetry_rusage().  Seems like you can get this data from getrusage() since kernel 2.6.22?

:wes

On 12 Jul 2011, at 12:14, Olivier ROLAND wrote:
> Linux kernel 2.6.20 and later supports per process I/O accounting.
> You can access every process/thread's I/O read/write values by using
> /proc filesystem.
> You can check if your kernel has built with I/O account by just simply
> checking /proc/self/io file.
> If it exists then you have I/O accounting built-in.
> 
> I use that to have real I/O stats for lmtp, imap and pop in Cyrus.
> You just need ioconf = yes in your conf to activate I/O stats.
> The code autodetect if your kernel support I/O account and disable the
> stats if not.
> 
> You can find the git branch with the code here :
> https://github.com/worldline-messaging/cyrus-imapd/tree/io-stat