Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/25/21 9:33 AM, Mike Rapoport wrote: > On Thu, Apr 22, 2021 at 02:08:51PM +, peter.enderb...@sony.com wrote: >> On 4/22/21 10:06 AM, Mike Rapoport wrote: >>> So the flow is like this: >>> >>> * a user has a problem and reports it to an application developer; at best >>> the user runs

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/22/21 10:06 AM, Mike Rapoport wrote: > On Wed, Apr 21, 2021 at 05:35:57PM +, peter.enderb...@sony.com wrote: >> On 4/21/21 5:31 PM, Mike Rapoport wrote: >>> On Wed, Apr 21, 2021 at 10:37:11AM +, peter.enderb...@sony.com wrote: On 4/21/21 11:15 AM, Daniel Vetter wrote: > We

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/21/21 5:31 PM, Mike Rapoport wrote: > On Wed, Apr 21, 2021 at 10:37:11AM +, peter.enderb...@sony.com wrote: >> On 4/21/21 11:15 AM, Daniel Vetter wrote: >>> We need to understand what the "correct" value is. Not in terms of kernel >>> code, but in terms of semantics. Like if userspace

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/21/21 11:15 AM, Daniel Vetter wrote: > On Tue, Apr 20, 2021 at 11:37:41AM +, peter.enderb...@sony.com wrote: >> On 4/20/21 1:14 PM, Daniel Vetter wrote: >>> On Tue, Apr 20, 2021 at 09:26:00AM +, peter.enderb...@sony.com wrote: On 4/20/21 10:58 AM, Daniel Vetter wrote: > On

Re: [PATCH v2] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 4:48 PM, Daniel Stone wrote: > On Tue, 20 Apr 2021 at 14:46, > wrote: > > On 4/20/21 3:34 PM, Daniel Stone wrote: > > On Fri, 16 Apr 2021 at 13:34, Peter Enderborg

Re: [PATCH v2] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 3:34 PM, Daniel Stone wrote: > Hi Peter, > > On Fri, 16 Apr 2021 at 13:34, Peter Enderborg > wrote: > > This adds a total used dma-buf memory. Details > can be found in debugfs, however it is not for everyone > and not always available.

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 1:52 PM, Mike Rapoport wrote: > On Tue, Apr 20, 2021 at 10:45:21AM +, peter.enderb...@sony.com wrote: >> On 4/20/21 11:41 AM, Mike Rapoport wrote: >>> Hello Peter, >>> >>> On Tue, Apr 20, 2021 at 09:26:00AM +, peter.enderb...@sony.com wrote: On 4/20/21 10:58 AM, Daniel

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 1:14 PM, Daniel Vetter wrote: > On Tue, Apr 20, 2021 at 09:26:00AM +, peter.enderb...@sony.com wrote: >> On 4/20/21 10:58 AM, Daniel Vetter wrote: >>> On Sat, Apr 17, 2021 at 06:38:35PM +0200, Peter Enderborg wrote: This adds a total used dma-buf memory. Details can be

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 1:04 PM, Michal Hocko wrote: > On Tue 20-04-21 09:25:51, peter.enderb...@sony.com wrote: >> On 4/20/21 11:12 AM, Michal Hocko wrote: >>> On Tue 20-04-21 09:02:57, peter.enderb...@sony.com wrote: >> But that isn't really system memory at all, it's just allocated device >> memory.

Re: [PATCH v5] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 10:58 AM, Daniel Vetter wrote: > On Sat, Apr 17, 2021 at 06:38:35PM +0200, Peter Enderborg wrote: >> This adds a total used dma-buf memory. Details >> can be found in debugfs, however it is not for everyone >> and not always available. dma-buf are indirect allocated by >> userspace. So

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/20/21 11:12 AM, Michal Hocko wrote: > On Tue 20-04-21 09:02:57, peter.enderb...@sony.com wrote: But that isn't really system memory at all, it's just allocated device memory. >>> OK, that was not really clear to me. So this is not really accounted to >>> MemTotal? If that is really

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

>> But that isn't really system memory at all, it's just allocated device >> memory. > OK, that was not really clear to me. So this is not really accounted to > MemTotal? If that is really the case then reporting it into the oom > report is completely pointless and I am not even sure

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/19/21 5:00 PM, Michal Hocko wrote: > On Mon 19-04-21 12:41:58, peter.enderb...@sony.com wrote: >> On 4/19/21 2:16 PM, Michal Hocko wrote: >>> On Sat 17-04-21 12:40:32, Peter Enderborg wrote: This adds a total used dma-buf memory. Details can be found in debugfs, however it is not

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/19/21 2:16 PM, Michal Hocko wrote: > On Sat 17-04-21 12:40:32, Peter Enderborg wrote: >> This adds a total used dma-buf memory. Details >> can be found in debugfs, however it is not for everyone >> and not always available. dma-buf are indirect allocated by >> userspace. So with this value we

Re: [External] [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/17/21 3:07 PM, Muchun Song wrote: > On Sat, Apr 17, 2021 at 6:41 PM Peter Enderborg > wrote: >> This adds a total used dma-buf memory. Details >> can be found in debugfs, however it is not for everyone >> and not always available. dma-buf are indirect allocated by >> userspace. So with this

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/17/21 1:54 PM, Christian König wrote: > Am 17.04.21 um 13:20 schrieb peter.enderb...@sony.com: >> On 4/17/21 12:59 PM, Christian König wrote: >>> Am 17.04.21 um 12:40 schrieb Peter Enderborg: This adds a total used dma-buf memory. Details can be found in debugfs, however it is not

Re: [PATCH v4] dma-buf: Add DmaBufTotal counter in meminfo

On 4/17/21 12:59 PM, Christian König wrote: > Am 17.04.21 um 12:40 schrieb Peter Enderborg: >> This adds a total used dma-buf memory. Details >> can be found in debugfs, however it is not for everyone >> and not always available. dma-buf are indirect allocated by >> userspace. So with this value

Re: [External] [PATCH v3] dma-buf: Add DmaBufTotal counter in meminfo

On 4/17/21 5:05 AM, Muchun Song wrote: > On Sat, Apr 17, 2021 at 12:08 AM Peter Enderborg > wrote: >> This adds a total used dma-buf memory. Details >> can be found in debugfs, however it is not for everyone >> and not always available. dma-buf are indirect allocated by >> userspace. So with this