Re:BPF Theremin, Tetris, and Typewriters
by denormalfloat on Sunday December 22, 2019 @11:13PM
(#21861444)
But that's also why BPF doesn't seem to have a place in this world. Anything surfaced by a BPF program should probably be surfaced by a proper kernel module or syscall. As far as I can tell, the utility of BPF tracing is solely between the time a bug comes up, and a few weeks later when a kernel upgrade exposes this info anyways.
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Re:BPF Theremin, Tetris, and Typewriters
by rhinoceraptor on Monday December 23, 2019 @02:03AM
(#21861967)
Neither of your suggestions really get at the point of eBPF. That is, to safely (goodbye kernel modules) and dynamically (goodbye syscalls) instrument the kernel.