libbpf-tools: add dcstat for monitoring disk cache statistics. #4976
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dcstat is a simple tool that counts the various disk cache statistics. Signed-off-by: Pratima Bhat <[email protected]>
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$ cd libbpf-tools/ $ make dcstat $ sudo ./dcstat TIME REFS/s SLOW/s MISS/s HITS 16:56:14: 4081 105 26 99.36 16:56:15: 14691 168 47 99.68 16:56:16: 12634 164 44 99.65 16:56:17: 1884 146 29 98.46 16:56:18: 209 0 0 100.00 16:56:19: 181 0 0 100.00