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tools lib traceevent: Optimize pretty_print() function

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Each time the pretty_print() function is called to print an event, the
event's format string is parsed. As this format string does not change,
this parsing can be done only once - when the event struct is
initialized.

Link: https://lore.kernel.org/linux-trace-devel/20200529134929.537110-1-tz.stoyanov@gmail.com
Link: http://lore.kernel.org/linux-trace-devel/20200625100516.365338-8-tz.stoyanov@gmail.com

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200702185704.559785000@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tzvetomir Stoyanov (VMware)
2020-07-02 14:53:51 -04:00
committed by Arnaldo Carvalho de Melo
parent 487ae1f4a1
commit e7a90882b0
3 changed files with 511 additions and 213 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
tools/lib/traceevent/event-parse-local.h
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@@ -85,6 +85,23 @@ struct tep_handle {
struct tep_plugins_dir *plugins_dir;
};
enum tep_print_parse_type {
PRINT_FMT_STING,
PRINT_FMT_ARG_DIGIT,
PRINT_FMT_ARG_POINTER,
PRINT_FMT_ARG_STRING,
};
struct tep_print_parse {
struct tep_print_parse *next;
char *format;
int ls;
enum tep_print_parse_type type;
struct tep_print_arg *arg;
struct tep_print_arg *len_as_arg;
};
void tep_free_event(struct tep_event *event);
void tep_free_format_field(struct tep_format_field *field);
void tep_free_plugin_paths(struct tep_handle *tep);