Re: [RFC][PATCH 4/5] memory_pressure_notify() caller

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To: Daniel <daniel.spang@...>

Cc: KOSAKI Motohiro <kosaki.motohiro@...>, <linux-mm@...>, <linux-kernel@...>, Marcelo Tosatti <marcelo@...>, Andrew Morton <akpm@...>

Subject: Re: [RFC][PATCH 4/5] memory_pressure_notify() caller

Date: Tuesday, January 15, 2008 - 6:59 pm

On Tue, 15 Jan 2008 23:55:17 +0100
"Daniel Spång" <daniel.spang@gmail.com> wrote:

quoted text> The notification fires after only ~100 MB allocated, i.e., when page
> reclaim is beginning to nag from page cache. Isn't this a bit early?
> Repeating the test with swap enabled results in a notification after
> ~600 MB allocated, which is more reasonable and just before the system
> starts to swap.

Your issue may have more to do with the fact that the
highmem zone is 128MB in size and some balancing issues
between __alloc_pages and try_to_free_pages.

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Messages in current thread:

[RFC][PATCH 0/5] mem notifications v4, KOSAKI Motohiro, (Mon Jan 14, 8:52 pm)

[RFC][PATCH 5/5] /proc/zoneinfo enhancement, KOSAKI Motohiro, (Mon Jan 14, 9:03 pm)

Re: [RFC][PATCH 5/5] /proc/zoneinfo enhancement, Alan Cox, (Tue Jan 15, 6:44 am)

Re: [RFC][PATCH 5/5] /proc/zoneinfo enhancement, KOSAKI Motohiro, (Tue Jan 15, 6:49 am)

[RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Mon Jan 14, 9:02 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, Daniel Spång, (Tue Jan 15, 6:55 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, Rik van Riel, (Tue Jan 15, 6:59 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, Daniel Spång, (Tue Jan 15, 7:39 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Tue Jan 15, 9:48 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, Daniel Spång, (Wed Jan 16, 7:03 am)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Wed Jan 16, 11:26 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, Daniel Spång, (Fri Jan 18, 6:24 am)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Fri Jan 18, 6:30 am)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KAMEZAWA Hiroyuki, (Mon Jan 14, 10:06 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Mon Jan 14, 10:37 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KAMEZAWA Hiroyuki, (Mon Jan 14, 11:00 pm)

Re: [RFC][PATCH 4/5] memory_pressure_notify() caller, KOSAKI Motohiro, (Mon Jan 14, 11:08 pm)

[RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Mon Jan 14, 9:01 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Pavel Machek, (Tue Jan 15, 6:16 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Tue Jan 15, 9:57 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Marcelo Tosatti, (Wed Jan 16, 12:13 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Pavel Machek, (Wed Jan 16, 7:42 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Daniel Spång, (Wed Jan 16, 7:51 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Wed Jan 16, 11:04 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Alan Cox, (Tue Jan 15, 6:46 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Tue Jan 15, 6:59 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Alan Cox, (Tue Jan 15, 7:20 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Marcelo Tosatti, (Tue Jan 15, 8:05 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Alan Cox, (Tue Jan 15, 9:42 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Tue Jan 15, 7:48 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Alan Cox, (Tue Jan 15, 9:42 am)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Tue Jan 15, 10:43 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KAMEZAWA Hiroyuki, (Mon Jan 14, 10:10 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Mon Jan 14, 10:20 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Rik van Riel, (Mon Jan 14, 10:56 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, Randy Dunlap, (Mon Jan 14, 9:08 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Mon Jan 14, 9:20 pm)

Re: [RFC][PATCH 3/5] add /dev/mem_notify device, KOSAKI Motohiro, (Mon Jan 14, 9:24 pm)

[RFC][PATCH 2/5] introduce wake_up_locked_nr() new API, KOSAKI Motohiro, (Mon Jan 14, 9:00 pm)

[RFC][PATCH 1/5] introduce poll_wait_exclusive() new API , KOSAKI Motohiro, (Mon Jan 14, 8:59 pm)

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