diff options
| author | Ian Rogers <irogers@google.com> | 2024-03-01 12:13:06 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-03-21 13:54:40 -0300 |
| commit | 7aea01eaf4f301bd652a25d543bcba6c23cb4b85 (patch) | |
| tree | d96f2609c9850ea5d685dc036b57df98c05d99ed | |
| parent | f664d5159de275d3453ee5699b3376575c6aa156 (diff) | |
| download | linux-perf-7aea01eaf4f301bd652a25d543bcba6c23cb4b85.tar.gz | |
perf help: Lower levenshtein penality for deleting character
The levenshtein penalty for deleting a character was far higher than
subsituting or inserting a character. Lower the penalty to match that
of inserting a character.
Before:
$ perf recccord
perf: 'recccord' is not a perf-command. See 'perf --help'.
$
After:
$ perf recccord
perf: 'recccord' is not a perf-command. See 'perf --help'.
Did you mean this?
record
$
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240301201306.2680986-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/help-unknown-cmd.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c index 2ba3369f16207d..a0a46e34f8d142 100644 --- a/tools/perf/util/help-unknown-cmd.c +++ b/tools/perf/util/help-unknown-cmd.c @@ -73,10 +73,14 @@ const char *help_unknown_cmd(const char *cmd, struct cmdnames *main_cmds) if (main_cmds->cnt) { /* This reuses cmdname->len for similarity index */ - for (i = 0; i < main_cmds->cnt; ++i) + for (i = 0; i < main_cmds->cnt; ++i) { main_cmds->names[i]->len = - levenshtein(cmd, main_cmds->names[i]->name, 0, 2, 1, 4); - + levenshtein(cmd, main_cmds->names[i]->name, + /*swap_penalty=*/0, + /*substition_penality=*/2, + /*insertion_penality=*/1, + /*deletion_penalty=*/1); + } qsort(main_cmds->names, main_cmds->cnt, sizeof(*main_cmds->names), levenshtein_compare); |