carlvinhust2012 commented on code in PR #9887:
URL: https://github.com/apache/incubator-doris/pull/9887#discussion_r887519286
##########
be/src/util/system_metrics.cpp:
##########
@@ -718,4 +788,174 @@ void SystemMetrics::get_max_net_traffic(const
std::map<std::string, int64_t>& ls
*send_rate = max_send / interval_sec;
*rcv_rate = max_rcv / interval_sec;
}
+
+void SystemMetrics::_install_proc_metrics(MetricEntity* entity) {
+ _proc_metrics.reset(new ProcMetrics(entity));
+}
+
+void SystemMetrics::_update_proc_metrics() {
+#ifdef BE_TEST
+ FILE* fp = fopen(k_ut_stat_path, "r");
+#else
+ FILE* fp = fopen("/proc/stat", "r");
+#endif
+ if (fp == nullptr) {
+ char buf[64];
+ LOG(WARNING) << "open /proc/stat failed, errno=" << errno
+ << ", message=" << strerror_r(errno, buf, 64);
+ return;
+ }
+
+ uint64_t inter = 0, ctxt = 0, procs_r = 0, procs_b = 0;
+ while (getline(&_line_ptr, &_line_buf_size, fp) > 0) {
+ char* start_pos = nullptr;
+ start_pos = strstr(_line_ptr, "intr ");
+ if (start_pos) {
+ sscanf(start_pos, "intr %lu", &inter);
+ _proc_metrics->proc_interrupt->set_value(inter);
+ }
+
+ start_pos = strstr(_line_ptr, "ctxt ");
+ if (start_pos) {
+ sscanf(start_pos, "ctxt %lu", &ctxt);
+ _proc_metrics->proc_ctxt_switch->set_value(ctxt);
+ }
+
+ start_pos = strstr(_line_ptr, "procs_running ");
+ if (start_pos) {
+ sscanf(start_pos, "procs_running %lu", &procs_r);
+ _proc_metrics->proc_procs_running->set_value(procs_r);
+ }
+
+ start_pos = strstr(_line_ptr, "procs_blocked ");
+ if (start_pos) {
+ sscanf(start_pos, "procs_blocked %lu", &procs_b);
+ _proc_metrics->proc_procs_blocked->set_value(procs_b);
+ }
+ }
+
+ if (ferror(fp) != 0) {
+ char buf[64];
+ LOG(WARNING) << "getline failed, errno=" << errno
+ << ", message=" << strerror_r(errno, buf, 64);
+ }
+
+ fclose(fp);
+}
+
+void SystemMetrics::get_metrics_from_proc_meminfo() {
+#ifdef BE_TEST
+ FILE* fp = fopen(k_ut_meminfo_path, "r");
+#else
+ FILE* fp = fopen("/proc/meminfo", "r");
Review Comment:
after update, just use /proc/vmstat to get system memory.
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