Re: [PATCH 0/8] tracing: introducing eventfs

Steven Rostedt
2023-03-28T22:47:51Z

On Sun, 22 Jan 2023 22:37:08 +0530
Ajay Kaher <akaher@vmware.com> wrote:

> Events Tracing infrastructure contains lot of files, directories
> (internally in terms of inodes, dentries). And ends up by consuming
> memory in MBs. We can have multiple events of Events Tracing, which
> further requires more memory.
>
> Instead of creating inodes/dentries, eventfs could keep meta-data and
> skip the creation of inodes/dentries. As and when require, eventfs will
> create the inodes/dentries only for required files/directories.
> Also eventfs would delete the inodes/dentries once no more requires
> but preserve the meta data.
>

Hi Ajay,

Is there going to be any more work on this?

-- Steve

> Tracing events took ~9MB, with this approach it took ~4.5MB
> for ~10K files/dir.
>
> [PATCH 1/8]: Introducing struct tracefs_inode
> [PATCH 2/8]: Adding eventfs-dir-add functions
> [PATCH 3/8]: Adding eventfs-file-add function
> [PATCH 4/8]: Adding eventfs-file-directory-remove function
> [PATCH 5/8]: Adding functions to create-eventfs-files
> [PATCH 6/8]: Adding eventfs lookup, read, open functions
> [PATCH 7/8]: Creating tracefs_inode_cache
> [PATCH 8/8]: Moving tracing events to eventfs