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Groups > linux.kernel > #1515877
| From | Chen Feng <puck.chen@hisilicon.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA |
| Date | 2016-11-07 08:20 +0100 |
| Message-ID | <sAMnL-8cf-3@gated-at.bofh.it> (permalink) |
| References | <ss12F-45Z-3@gated-at.bofh.it> <ss12F-45Z-7@gated-at.bofh.it> <syCiS-63V-17@gated-at.bofh.it> <sALrH-7Ef-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2016/11/7 14:15, Joonsoo Kim wrote: > On Tue, Nov 01, 2016 at 03:58:32PM +0800, Chen Feng wrote: >> Hello, I hava a question on cma zone. >> >> When we have cma zone, cma zone will be the highest zone of system. >> >> In android system, the most memory allocator is ION. Media system will >> alloc unmovable memory from it. >> >> On low memory scene, will the CMA zone always do balance? > > Allocation request for low zone (normal zone) would not cause CMA zone > to be balanced since it isn't helpful. > Yes. But the cma zone will run out soon. And it always need to do balance. How about use migrate cma before movable and let cma type to fallback movable. https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1263745.html >> Should we transmit the highest available zone to kswapd？ > > It is already done when necessary. > > Thanks. > > > . >
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Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Chen Feng <puck.chen@hisilicon.com> - 2016-11-01 09:10 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-11-07 07:20 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Chen Feng <puck.chen@hisilicon.com> - 2016-11-07 08:20 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-11-07 08:30 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Chen Feng <puck.chen@hisilicon.com> - 2016-11-07 08:50 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-11-08 05:00 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Chen Feng <puck.chen@hisilicon.com> - 2016-11-08 08:10 +0100
Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-11-11 07:40 +0100
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