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Sumit6307 b2b78d2f8a
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fs: Add Kernel-level VFS Performance Profiler
This adds a kernel-level performance profiler for the VFS.
By enabling CONFIG_FS_PROFILER, the core VFS system calls
(file_read, file_write, file_open, and file_close) are
instrumented to track high-resolution execution times using
clock_systime_timespec() seamlessly.

The collected statistics are exposed dynamically via a new
procfs node at /proc/fs/profile, allowing CI regression
testing without needing external debugging tools.

Signed-off-by: Sumit6307 <sumitkesar6307@gmail.com>
2026-04-26 11:50:09 -03:00
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