Re: Memory leak?

[Stephane Chazelas <stephane_chazelas@yahoo.fr>]

2011-07-09 08:09:55 +0100, Stephane Chazelas:
> 2011-07-08 16:12:28 -0400, Chris Mason:
> [...]
> > > I'm running a "dstat -df" at the same time and I'm seeing
> > > substantive amount of disk writes on the disks that hold the
> > > source FS (and I'm rsyncing from read-only snapshot subvolumes
> > > in case you're thinking of atimes) almost more than onto the
> > > drive holding the target FS!?
> > 
> > These are probably atime updates.  You can completely disable them with
> > mount -o noatime.
> [...]
> 
> I don't think it is. First, as I said, I'm rsyncing from
> read-only snapshots (and I could see atimes were not updated)
> and nothing else is running. Then now looking at the traces this
> morning, There was a lot written in the first minutes, then it
> calmed down.
[...]

How embarrassing, sorry

In that instance I wasn't rsyncing from the right place, so I
was indeed copying non-readonly volumes before copying readonly
ones. So, those writes were probably due to atimes.

-- 
Stephane