On Monday, January 23, 2017 5:53:35 PM EST Jeremi Piotrowski wrote:
> On Mon, Jan 23, 2017 at 04:50:33PM +0100, Frank Steinmetzger wrote:
> > Can you give me a nudge? My sysctl.conf has only one active line besides
> > some netfilter stuff:
> > vm.swappiness = 1
> > (This is an SSD, I don’t even have swap on this machine unless I know I
> > definitely need it temporarily)
> 
> I'd say the relevant sysctl's are /proc/sys/vm/dirty* and
> /proc/sys/vm/laptop_mode, along with the filesystems and mount options you
> are using for the USB drives. Please post these values. Also, could you
> get the output of /proc/meminfo while this is happening?

Yup.

You need to set vm.dirty_bytes and vm.dirty_background_bytes to something 
sane, like 10M and 1M, respectively. They default to something like 20% of 
system memory, and 10% of system memory, respectively...

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