diff options
| author | Alexey Budankov <alexey.budankov@linux.intel.com> | 2019-03-18 20:41:02 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-15 16:36:49 -0300 |
| commit | d3c8c08e75c4cbb6a940323092b40fcfd1de5380 (patch) | |
| tree | 76900ec276eedfa1c32a9eb89acce9f55c4e6ee9 /tools/perf/util/env.h | |
| parent | 5b6f5aef10f65863151fd4daed61657ad2681f98 (diff) | |
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/env.h')
| -rw-r--r-- | tools/perf/util/env.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index 4f8e2b485c01..34868ca7efd1 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -62,6 +62,7 @@ struct perf_env { struct cpu_topology_map *cpu; struct cpu_cache_level *caches; int caches_cnt; + u32 comp_ratio; struct numa_node *numa_nodes; struct memory_node *memory_nodes; unsigned long long memory_bsize; |