perf_session__has_traces
if (!perf_session__has_traces(session, "kmem record"))
if (!perf_session__has_traces(kvm->session, "kvm record")) {
if (!perf_session__has_traces(session, "lock record"))
if (!perf_session__has_traces(session, "lock record"))
if (perf_session__has_traces(session, "record -R")) {
!perf_session__has_traces(session, "record -R"))
if (!perf_session__has_traces(session, "timechart record"))
bool perf_session__has_traces(struct perf_session *session, const char *msg);