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author | Christian Brauner <brauner@kernel.org> | 2024-08-23 21:06:58 +0200 |
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committer | Christian Brauner <brauner@kernel.org> | 2024-08-29 15:20:25 +0200 |
commit | c0390d541128e8820af8177a572d9d87ff68a3bb (patch) | |
tree | 432326e76850ccb9d807a86ecdd9951bc537a113 /mm | |
parent | a55d1cbd1720679cfe9837bce250e397ec513989 (diff) |
fs: pack struct file
Now that we shrunk struct file to 192 bytes aka 3 cachelines reorder
struct file to not leave any holes or have members cross cachelines.
Add a short comment to each of the fields and mark the cachelines.
It's possible that we may have to tweak this based on profiling in the
future. So far I had Jens test this comparing io_uring with non-fixed
and fixed files and it improved performance. The layout is a combination
of Jens' and my changes.
Link: https: //lore.kernel.org/r/20240824-peinigen-hocken-7384b977c643@brauner
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions