top io mode

[Kostik Belousov]

On Thu, Nov 25, 2010 at 05:18:13PM -0600, Adam Vande More wrote:
> On Thu, Nov 25, 2010 at 4:44 PM, Kostik Belousov <kostikbel at gmail.com>wrote:
> 
> > Can you show exact command and describe some details about setup for
> > the case where you still do not observe the counter in top ?
> > (With my patch applied).
> >
> -----------------------------------------------------------------------------------------------------------------
> Still broken with patch applied;
> dd if=/dev/zero of=/tmp/delete.me bs=64k
What is /tmp/delete.me ? A file ? On what kind of filesystem is it
located ?

Summoning some psychic power, I can predict that delete.me is
located on ZFS or tmpfs filesystem. Is this right ? If yes, then
the result is expected and nothing is broken there (except ZFS,
but I already described it).

> 
> during this "top -m io" displays for dd:
>  2235 adam           14     24      0      0      0      0   0.00% dd
> 
> -----------------------------------------------------------------------------------------------------------------
> Fixed with patch applied;
> 
> dd if=/dev/ada0 of=/dev/null bs=64k
> 
> during this "top -m io" displays for dd:
>  2248 adam         3262      0   3262      0      0   3262 100.00% dd
> 
> 
> 
> -- 
> Adam Vande More
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