On 09/29/2016 08:12 AM, Raymond Jennings wrote:
On Wed, 21 Sep 2016 00:04:58 -0700 Raymond Jennings <shentino@xxxxxxxxx> wrote: I would like to apologize to everyone for the mailbombing. Something went screwy with my email client and I had to bitchslap my installation when I saw my gmail box full of half-composed messages being sent out.
FWIW, I apparently didn't receive any.
For the curious, by the by, how does kcompactd work? Does it just get run on request or is it a continuous background process akin to khugepaged? Is there a way to keep it running in the background defragmenting on a continuous trickle basis?
Right now it gets run on request. Kswapd is woken up when watermarks get between "min" and "low" and when it finishes reclaim and it was a high-order request, it wakes up kcompactd, which compacts until page of given order is available. That mimics how it was before when kswapd did the compaction itself, but I know it's not ideal and plan to make kcompactd more proactive.
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