kernel/tools/perf/util/time-utils.c, branch linux-6.2.y

perf script: Fix --reltime with --time

2019-10-15T11:36:22Z

My earlier patch to just enable --reltime with --time was a little too optimistic. The --time parsing would accept absolute time, which is very confusing to the user. Support relative time in --time parsing too. This only works with recent perf record that records the first sample time. Otherwise we error out. Fixes: 3714437d3fcc ("perf script: Allow --time with --reltime") Signed-off-by: Andi Kleen Cc: Jiri Olsa Link: http://lore.kernel.org/lkml/20191011182140.8353-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove perf.h from source files not needing it

2019-08-29T20:38:32Z

With the movement of lots of stuff out of perf.h to other headers we ended up not needing it in lots of places, remove it from those places. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-c718m0sxxwp73lp9d8vpihb4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Use skip_spaces()

2019-06-26T00:39:18Z

No change in behaviour intended. Cc: Adrian Hunter Cc: David Ahern Cc: Jin Yao Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-cpugv7qd5vzhbtvnlydo90jv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Use linux/ctype.h in more places

2019-06-26T00:13:51Z

There were a few places where we still were using the libc version of ctype.h, switch to the one in tools/lib/ctype.c that the rest of perf uses. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-wa4nz4kt61eze88eprk20tfd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Add support for multiple explicit time intervals

2019-06-10T19:20:13Z

Currently only a single explicit time range is accepted. Add support for multiple ranges separated by spaces, which requires the string to be quoted. Update the time utils test accordingly. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-20-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Make perf_time__parse_for_ranges() more logical

2019-06-10T19:20:12Z

Explicit time ranges never contain a percent sign whereas percentage ranges always do, so it is possible to call the correct parser. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-18-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Simplify perf_time__parse_for_ranges() error paths slightly

2019-06-10T19:20:12Z

Simplify perf_time__parse_for_ranges() error paths slightly. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-17-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Prevent percentage time range overlap

2019-06-10T19:20:12Z

Prevent percentage time range overlap. This is only a 1 nanosecond change but makes the results more logical e.g. a sample cannot be in both the first 10% and the second 20%. Note, there is a later patch that adds a test for time-utils. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-15-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Factor out set_percent_time()

2019-06-10T19:20:12Z

Factor out set_percent_time() so it can be reused. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Treat time ranges consistently

2019-06-10T19:20:12Z

Currently, options allow only 1 explicit (non-percentage) time range. In preparation for adding support for multiple explicit time ranges, treat time ranges consistently. Instead of treating some time ranges as inclusive and some as excluding the end time, treat all time ranges as inclusive. This is only a 1 nanosecond change but is necessary to treat multiple explicit time ranges in a consistent manner. Note, there is a later patch that adds a test for time-utils. Signed-off-by: Adrian Hunter Cc: Jin Yao Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190604130017.31207-13-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo