memory: add common memory usage

Author: patapenka-alexey

dashboard/panels/runtime.libsonnet

@@ -26,6 +26,29 @@ local variable = import 'dashboard/variable.libsonnet';
     ),
 
   total_memory(
+    cfg,
+    title='Total memory',
+    description=|||
+      Total memory used by Tarantool.
+    |||,
+  ):: common.default_graph(
+    cfg,
+    title=title,
+    description=description,
+    format='bytes',
+    labelY1='in bytes',
+    panel_width=8,
+  ).addTarget(
+    if cfg.type == variable.datasource_type.prometheus then
+      prometheus.target(
+        expr='sum(tnt_memory{job=~"$job"}) + sum(tnt_memory_virt{job=~"$job"}'),
+        legendFormat='{{alias}}',
+      )
+    else if cfg.type == variable.datasource_type.influxdb then
+      influxdb.target()
+  ),
+
+  resident_memory(
     cfg,
     title='Resident memory',
     description=|||
@@ -37,7 +60,7 @@ local variable = import 'dashboard/variable.libsonnet';
     description=description,
     format='bytes',
     labelY1='in bytes',
-    panel_width=12,
+    panel_width=8,
   ).addTarget(
     common.target(cfg, 'tnt_memory')
   ).addTarget(
@@ -59,7 +82,7 @@ local variable = import 'dashboard/variable.libsonnet';
     description=description,
     format='bytes',
     labelY1='in bytes',
-    panel_width=12,
+    panel_width=8,
   ).addTarget(
     common.target(cfg, 'tnt_memory_virt')
   ).addTarget(

dashboard/section.libsonnet

@@ -240,6 +240,7 @@ local vinyl = import 'dashboard/panels/vinyl.libsonnet';
   runtime(cfg):: [
     runtime.row,
     runtime.total_memory(cfg),
+    runtime.resident_memory(cfg),
     runtime.virt_memory(cfg),
     runtime.lua_memory(cfg),
     runtime.runtime_memory(cfg),