Comment 207 for bug 1518457

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In , xpaint (xpaint-linux-kernel-bugs) wrote :

(In reply to Dan Streetman from comment #52)

> of course those cause kswapd work, all those commands will fill your page
> cache and kswapd is responsible for clearing those pages out.
>
> kswapd running isn't a problem, if it's doing work. kswapd running
> *without* doing work is the problem. When you stop running those commands,
> does kswapd catch up and stop using cpu? If so, that's normal. If not, and
> it never stops using cpu, that's the problem.

but, why kswapd so aggressively write something to storage when no data to flush (swap not set)?