Messages in this thread | | | Date | Tue, 15 Jan 2008 11:20:56 +0900 | From | KOSAKI Motohiro <> | Subject | Re: [RFC][PATCH 3/5] add /dev/mem_notify device |
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Hi Kame
> > + if (pressure) { > > + nr_wakeup = max_t(int, atomic_read(&nr_watcher_task)>>4, 100); > > + atomic_long_set(&last_mem_notify, jiffies); > > + wake_up_locked_nr(&mem_wait, nr_wakeup); > > + } > What is this for ? and Why ? > Are there too many waiters ?
my intent is for avoid thundering herd. 100 is heuristic value.
and too many wakeup cause too much memory freed. I don't want it.
of course, if any problem happened, I will change. Do you dislike it?
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