On July 31, 2020 2:35:20 PM GMT-03:00, Changbin Du <changbin...@gmail.com> wrote: >Hi Arnaldo, >Are we ready to merge this serias now Thanks. :) Next week I'll be in vacation, do I'll have more time for upstream stuff, - Arnaldo > >On Sat, Jul 18, 2020 at 02:48:08PM +0800, Changbin Du wrote: >> The perf has basic kernel ftrace support but lack support of most >tracing >> options. This serias is target to enhance the perf ftrace >functionality so >> that we can make full use of kernel ftrace with perf. >> >> In general, this serias be cataloged into two main changes: >> 1) Improve usability of existing functions. For example, we don't >need to type >> extra option to select the tracer. >> 2) Add new options to support all other ftrace functions. >> >> Here is a glance of all ftrace functions with this serias: >> >> $ sudo perf ftrace -h >> >> Usage: perf ftrace [<options>] [<command>] >> or: perf ftrace [<options>] -- <command> [<options>] >> >> -a, --all-cpus system-wide collection from all CPUs >> -C, --cpu <cpu> list of cpus to monitor >> -D, --delay <n> ms to wait before starting tracing after >program start >> -F, --funcs Show available functions to filter >> -G, --graph-funcs <func> >> trace given functions using function_graph >tracer >> -g, --nograph-funcs <func> >> Set nograph filter on given functions >> -m, --buffer-size <size> >> size of per cpu buffer >> -N, --notrace-funcs <func> >> do not trace given functions >> -p, --pid <pid> trace on existing process id >> -T, --trace-funcs <func> >> trace given functions using function tracer >> -t, --tracer <tracer> >> tracer to use: function or function_graph >(This option is deprecated) >> -v, --verbose be more verbose >> --func-opts <options> >> function tracer options, available options: >call-graph,irq-info >> --graph-opts <options> >> graph tracer options, available options: >nosleep-time,noirqs,verbose,thresh=<n>,depth=<n> >> --inherit trace children processes >> --tid <tid> trace on existing thread id (exclusive to >--pid) >> >> v7: >> o add back '--tid <tid>'. >> v6: >> o fix return value of read_tracing_file_to_stdout(). >> o make __cmd_ftrace() shorter. >> o remove option '-t, --tid <tid>'. >> v5: >> o trivial fixes. >> v4: >> o add util/parse-sublevel-options.c >> O remove -D/--graph-depth >> v3: >> o add --func-opts and --graph-opts to set tracer specific options. >> o support units as a suffix for option '-m/--buffer-size'. >> v2: >> o patches for option '-u/--userstacktrace' and '--no-pager' are >dropped. >> o update all related perf documentation. >> o rename some options. Now all funcgraph tracer options are >prefixed with >> '--graph-', while all function tracer options are prefixed with >'--func-'. >> o mark old options deprecated instead of removing them. >> >> >> Changbin Du (18): >> perf ftrace: select function/function_graph tracer automatically >> perf ftrace: add option '-F/--funcs' to list available functions >> perf ftrace: factor out function write_tracing_file_int() >> perf ftrace: add option '-m/--buffer-size' to set per-cpu buffer >size >> perf ftrace: show trace column header >> perf ftrace: add option '--inherit' to trace children processes >> perf: util: add general function to parse sublevel options >> perf ftrace: add support for tracing option 'func_stack_trace' >> perf ftrace: add support for trace option sleep-time >> perf ftrace: add support for trace option funcgraph-irqs >> perf ftrace: add support for tracing option 'irq-info' >> perf ftrace: add option 'verbose' to show more info for graph >tracer >> perf ftrace: add support for trace option tracing_thresh >> perf: ftrace: allow set graph depth by '--graph-opts' >> perf ftrace: add option -D/--delay to delay tracing >> perf ftrace: add option --tid to filter by thread id >> perf: ftrace: Add set_tracing_options() to set all trace options >> perf ftrace: add change log >> >> tools/perf/Documentation/perf-config.txt | 5 - >> tools/perf/Documentation/perf-ftrace.txt | 36 +- >> tools/perf/builtin-ftrace.c | 415 >+++++++++++++++++++++-- >> tools/perf/util/Build | 1 + >> tools/perf/util/debug.c | 61 +--- >> tools/perf/util/parse-sublevel-options.c | 70 ++++ >> tools/perf/util/parse-sublevel-options.h | 11 + >> 7 files changed, 513 insertions(+), 86 deletions(-) >> create mode 100644 tools/perf/util/parse-sublevel-options.c >> create mode 100644 tools/perf/util/parse-sublevel-options.h >> >> -- >> 2.25.1 >> -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
