Re: [External Mail]Re: [RFC] tracing: aggregate ring-buffer memory statistics

[Steven Rostedt]

On Wed, 2 Sep 2026 02:24:23 +0000
高翔 <gaoxiang17@xxxxxxxxxx> wrote:

> Hi Steve,
> 
> 
> Just checking if the metadata split I proposed last time looks
> reasonable, so I know whether to proceed with the implementation:
> 
> 
>   total:
>   buffers_mem:
>   snapshot_buffers_mem:
>   metadata_mem:
> 
> 
> where buffers_mem and snapshot_buffers_mem report all page memory, and
> metadata_mem reports the slab-allocated ring-buffer metadata.
> 
> 
> Would you like me to proceed with this split?
> 

Let's start with just the buffers for now. Thinking about this more, the
file can be called "memory_usage" and we can drop the "_mem" part of the
items.

 # cat memory_usage_kb
 buffers: XXX
 snapshot buffers: XXX


We can then add more information later.

-- Steve