Improve the polling statistics

The statistics of the polling system no longer match the implementation it
measures. Modified the statistics to better represent the new system by
calculating the number of epoll events each thread receives.

server/core/statistics.c

@@ -91,3 +91,47 @@ int64_t ts_stats_sum(ts_stats_t stats)
     }
     return sum;
 }
+
+/**
+ * @brief Read the value of the statistics object
+ *
+ * Calculate
+ *
+ * @param stats Statistics to read
+ * @param type  The statistics type
+ * @return Value of statistics
+ */
+int64_t ts_stats_get(ts_stats_t stats, enum ts_stats_type type)
+{
+    ss_dassert(stats_initialized);
+    int64_t best = type == TS_STATS_MAX ? LONG_MIN : (type == TS_STATS_MIX ? LONG_MAX : 0);
+
+    for (int i = 0; i < thread_count; i++)
+    {
+        int64_t value = ((int64_t*)stats)[i];
+
+        switch (type)
+        {
+            case TS_STATS_MAX:
+                if (value > best)
+                {
+                    best = value;
+                }
+                break;
+
+            case TS_STATS_MIX:
+                if (value < best)
+                {
+                    best = value;
+                }
+                break;
+
+            case TS_STATS_AVG:
+            case TS_STATS_SUM:
+                best += value;
+                break;
+        }
+    }
+
+    return type == TS_STATS_AVG ? best / thread_count : best;
+}