Em Thu, Feb 28, 2019 at 12:02:09PM +0300, Alexey Budankov escreveu: > > Define bytes_transferred and bytes_compressed metrics to calculate > comp_ratio=transferred/compressed in the end of the data collection. > > bytes_transferred accumulates the amount of bytes that was captured from > the mmaped kernel buffers for compression. bytes_compressed accumulates > the amount of bytes that was received after applying compression to > move to a storage.
Where is the code that updates these metrics? Follow up patch? > Signed-off-by: Alexey Budankov <[email protected]> > --- > tools/perf/builtin-record.c | 8 ++++++++ > tools/perf/util/env.h | 1 + > tools/perf/util/session.h | 2 ++ > 3 files changed, 11 insertions(+) > > diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c > index 61818cbce443..6d78a7720698 100644 > --- a/tools/perf/builtin-record.c > +++ b/tools/perf/builtin-record.c > @@ -1449,6 +1449,14 @@ static int __cmd_record(struct record *rec, int argc, > const char **argv) > record__mmap_read_all(rec, true); > record__aio_mmap_read_sync(rec); > > + if (!quiet && rec->session->bytes_transferred && > rec->session->bytes_compressed) { > + float ratio = > (float)rec->session->bytes_transferred/(float)rec->session->bytes_compressed; > + > + session->header.env.comp_ratio = ratio + 0.5; > + fprintf(stderr, "[ perf record: Compressed %.3f MB to %.3f MB, > ratio is %.3f ]\n", > + rec->session->bytes_transferred / 1024.0 / 1024.0, > rec->session->bytes_compressed / 1024.0 / 1024.0, ratio); > + } > + > if (forks) { > int exit_status; > > diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h > index d01b8355f4ca..fb39e9af128f 100644 > --- a/tools/perf/util/env.h > +++ b/tools/perf/util/env.h > @@ -64,6 +64,7 @@ struct perf_env { > struct memory_node *memory_nodes; > unsigned long long memory_bsize; > u64 clockid_res_ns; > + u32 comp_ratio; > }; > > extern struct perf_env perf_env; > diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h > index d96eccd7d27f..0e14884f28b2 100644 > --- a/tools/perf/util/session.h > +++ b/tools/perf/util/session.h > @@ -35,6 +35,8 @@ struct perf_session { > struct ordered_events ordered_events; > struct perf_data *data; > struct perf_tool *tool; > + u64 bytes_transferred; > + u64 bytes_compressed; > }; > > struct perf_tool; -- - Arnaldo
