#include "util/pmu-hybrid.h"
#include "util/evlist-hybrid.h"
#include "util/off_cpu.h"
+#include "util/bpf-filter.h"
#include "asm/bug.h"
#include "perf.h"
#include "cputopo.h"
return fd;
}
-static void __record__read_lost_samples(struct record *rec, struct evsel *evsel,
+static void __record__save_lost_samples(struct record *rec, struct evsel *evsel,
struct perf_record_lost_samples *lost,
- int cpu_idx, int thread_idx)
+ int cpu_idx, int thread_idx, u64 lost_count,
+ u16 misc_flag)
{
- struct perf_counts_values count;
struct perf_sample_id *sid;
struct perf_sample sample = {};
int id_hdr_size;
- if (perf_evsel__read(&evsel->core, cpu_idx, thread_idx, &count) < 0) {
- pr_debug("read LOST count failed\n");
- return;
- }
-
- if (count.lost == 0)
- return;
-
- lost->lost = count.lost;
+ lost->lost = lost_count;
if (evsel->core.ids) {
sid = xyarray__entry(evsel->core.sample_id, cpu_idx, thread_idx);
sample.id = sid->id;
id_hdr_size = perf_event__synthesize_id_sample((void *)(lost + 1),
evsel->core.attr.sample_type, &sample);
lost->header.size = sizeof(*lost) + id_hdr_size;
+ lost->header.misc = misc_flag;
record__write(rec, NULL, lost, lost->header.size);
}
evlist__for_each_entry(session->evlist, evsel) {
struct xyarray *xy = evsel->core.sample_id;
+ u64 lost_count;
if (xy == NULL || evsel->core.fd == NULL)
continue;
for (int x = 0; x < xyarray__max_x(xy); x++) {
for (int y = 0; y < xyarray__max_y(xy); y++) {
- __record__read_lost_samples(rec, evsel, lost, x, y);
+ struct perf_counts_values count;
+
+ if (perf_evsel__read(&evsel->core, x, y, &count) < 0) {
+ pr_debug("read LOST count failed\n");
+ goto out;
+ }
+
+ if (count.lost) {
+ __record__save_lost_samples(rec, evsel, lost,
+ x, y, count.lost, 0);
+ }
}
}
+
+ lost_count = perf_bpf_filter__lost_count(evsel);
+ if (lost_count)
+ __record__save_lost_samples(rec, evsel, lost, 0, 0, lost_count,
+ PERF_RECORD_MISC_LOST_SAMPLES_BPF);
}
+out:
free(lost);
-
}
static volatile sig_atomic_t workload_exec_errno;
evlist->stats.total_lost += event->lost.lost;
return tool->lost(tool, event, sample, machine);
case PERF_RECORD_LOST_SAMPLES:
- if (tool->lost_samples == perf_event__process_lost_samples)
+ if (tool->lost_samples == perf_event__process_lost_samples &&
+ !(event->header.misc & PERF_RECORD_MISC_LOST_SAMPLES_BPF))
evlist->stats.total_lost_samples += event->lost_samples.lost;
return tool->lost_samples(tool, event, sample, machine);
case PERF_RECORD_READ: