> On 12-Mar-2021, at 6:27 PM, Jiri Olsa <jo...@redhat.com> wrote:
>
> On Tue, Mar 09, 2021 at 09:03:58AM -0500, Athira Rajeev wrote:
>> Currently the header string for different columns in perf report
>> is fixed. Some fields of perf sample could have different meaning
>> for different architectures than the meaning conveyed by the header
>> string. An example is the new field 'var2_w' of perf_sample_weight
>> structure. This is presently captured as 'Local INSTR Latency' in
>> perf mem report. But this could be used to denote a different latency
>> cycle in another architecture.
>>
>> Introduce a weak function arch_perf_header_entry__add() to set
>> the arch specific header string for the fields which can contain dynamic
>> header. If the architecture do not have this function, fall back to the
>> default header string value.
>>
>> Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
>> ---
>> tools/perf/util/event.h | 1 +
>> tools/perf/util/sort.c | 19 ++++++++++++++++++-
>> 2 files changed, 19 insertions(+), 1 deletion(-)
>>
>> diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
>> index f603edbbbc6f..89b149e2e70a 100644
>> --- a/tools/perf/util/event.h
>> +++ b/tools/perf/util/event.h
>> @@ -427,5 +427,6 @@ void cpu_map_data__synthesize(struct
>> perf_record_cpu_map_data *data, struct per
>>
>> void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64
>> *array, u64 type);
>> void arch_perf_synthesize_sample_weight(const struct perf_sample *data,
>> __u64 *array, u64 type);
>> +const char *arch_perf_header_entry__add(const char *se_header);
>>
>> #endif /* __PERF_RECORD_H */
>> diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
>> index 0d5ad42812b9..741a6df29fa0 100644
>> --- a/tools/perf/util/sort.c
>> +++ b/tools/perf/util/sort.c
>> @@ -25,6 +25,7 @@
>> #include <traceevent/event-parse.h>
>> #include "mem-events.h"
>> #include "annotate.h"
>> +#include "event.h"
>> #include "time-utils.h"
>> #include "cgroup.h"
>> #include "machine.h"
>> @@ -45,6 +46,7 @@
>> regex_t ignore_callees_regex;
>> int have_ignore_callees = 0;
>> enum sort_mode sort__mode = SORT_MODE__NORMAL;
>> +const char *dynamic_headers[] = {"local_ins_lat"};
>>
>> /*
>> * Replaces all occurrences of a char used with the:
>> @@ -1816,6 +1818,16 @@ struct sort_dimension {
>> int taken;
>> };
>>
>> +const char * __weak arch_perf_header_entry__add(const char *se_header)
>
> no need for the __add suffix in here
>
> jirka
>
Thanks Jiri for the review.
I will include this change in next version.
Thanks
Athira
>> +{
>> + return se_header;
>> +}
>> +
>> +static void sort_dimension_add_dynamic_header(struct sort_dimension *sd)
>> +{
>> + sd->entry->se_header =
>> arch_perf_header_entry__add(sd->entry->se_header);
>> +}
>> +
>> #define DIM(d, n, func) [d] = { .name = n, .entry = &(func) }
>>
>> static struct sort_dimension common_sort_dimensions[] = {
>> @@ -2739,11 +2751,16 @@ int sort_dimension__add(struct perf_hpp_list *list,
>> const char *tok,
>> struct evlist *evlist,
>> int level)
>> {
>> - unsigned int i;
>> + unsigned int i, j;
>>
>> for (i = 0; i < ARRAY_SIZE(common_sort_dimensions); i++) {
>> struct sort_dimension *sd = &common_sort_dimensions[i];
>>
>> + for (j = 0; j < ARRAY_SIZE(dynamic_headers); j++) {
>> + if (!strcmp(dynamic_headers[j], sd->name))
>> + sort_dimension_add_dynamic_header(sd);
>> + }
>> +
>> if (strncasecmp(tok, sd->name, strlen(tok)))
>> continue;
>>
>> --
>> 1.8.3.1
