Add low shm warning to bottom bar (#19824)

* Add low shm warning to bottom bar

* change relevant link

Author: hawkeye217

web/public/locales/en/views/system.json

@@ -162,7 +162,8 @@
     "reindexingEmbeddings": "Reindexing embeddings ({{processed}}% complete)",
     "cameraIsOffline": "{{camera}} is offline",
     "detectIsSlow": "{{detect}} is slow ({{speed}} ms)",
-    "detectIsVerySlow": "{{detect}} is very slow ({{speed}} ms)"
+    "detectIsVerySlow": "{{detect}} is very slow ({{speed}} ms)",
+    "shmTooLow": "/dev/shm allocation ({{total}} MB) should be increased to at least {{min}} MB."
   },
   "enrichments": {
     "title": "Enrichments",

web/src/hooks/use-stats.ts

@@ -32,6 +32,19 @@ export default function useStats(stats: FrigateStats | undefined) {
       return problems;
     }
 
+    // check shm level
+    const shm = memoizedStats.service.storage["/dev/shm"];
+    if (shm?.total && shm?.min_shm && shm.total < shm.min_shm) {
+      problems.push({
+        text: t("stats.shmTooLow", {
+          total: shm.total,
+          min: shm.min_shm,
+        }),
+        color: "text-danger",
+        relevantLink: "/system#storage",
+      });
+    }
+
     // check detectors for high inference speeds
     Object.entries(memoizedStats["detectors"]).forEach(([key, det]) => {
       if (det["inference_speed"] > InferenceThreshold.error) {