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d3c8c08e75
Define 'bytes_transferred' and 'bytes_compressed' metrics to calculate ratio in the end of the data collection: compression ratio = bytes_transferred / bytes_compressed The 'bytes_transferred' metric accumulates the amount of bytes that was extracted from the mmaped kernel buffers for compression, while 'bytes_compressed' accumulates the amount of bytes that was received after applying compression. Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1d4bf499-cb03-26dc-6fc6-f14fec7622ce@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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