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| author | Alexey Budankov | 2019-03-18 18:41:02 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2019-05-15 21:36:49 +0200 |
| commit | d3c8c08e75c4cbb6a940323092b40fcfd1de5380 (patch) | |
| tree | 76900ec276eedfa1c32a9eb89acce9f55c4e6ee9 /tools/perf/util/header.c | |
| parent | perf build tests: Add NO_LIBZSTD=1 to make_minimal (diff) | |
| download | kernel-qcow2-linux-d3c8c08e75c4cbb6a940323092b40fcfd1de5380.tar.gz kernel-qcow2-linux-d3c8c08e75c4cbb6a940323092b40fcfd1de5380.tar.xz kernel-qcow2-linux-d3c8c08e75c4cbb6a940323092b40fcfd1de5380.zip | |
perf session: Define 'bytes_transferred' and 'bytes_compressed' metrics
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>
Diffstat (limited to 'tools/perf/util/header.c')
0 files changed, 0 insertions, 0 deletions