diff --git a/packages/runtime-common/index-writer.ts b/packages/runtime-common/index-writer.ts
index 03fad5ea39..4ec2159de1 100644
--- a/packages/runtime-common/index-writer.ts
+++ b/packages/runtime-common/index-writer.ts
@@ -413,6 +413,8 @@ export class Batch {
 
   async invalidate(url: URL): Promise<string[]> {
     await this.ready;
+    let start = Date.now();
+    this.#perfLog.debug(`starting invalidation of ${url.href}`);
     let alias = trimExecutableExtension(url).href;
     let visited = new Set<string>();
     let invalidations = [
@@ -447,6 +449,7 @@ export class Batch {
     );
 
     let names = flattenDeep(columns);
+    let insertStart = Date.now();
     await this.#query([
       'INSERT INTO boxel_index_working',
       ...addExplicitParens(separatedByCommas(columns)),
@@ -457,6 +460,15 @@ export class Batch {
       'ON CONFLICT ON CONSTRAINT boxel_index_working_pkey DO UPDATE SET',
       ...separatedByCommas(names.map((name) => [`${name}=EXCLUDED.${name}`])),
     ] as Expression);
+    this.#perfLog.debug(
+      `inserted invalidated rows for  ${url.href} in ${
+        Date.now() - insertStart
+      } ms`,
+    );
+
+    this.#perfLog.debug(
+      `completed invalidation of ${url.href} in ${Date.now() - start} ms`,
+    );
 
     this.#invalidations = new Set([...this.#invalidations, ...invalidations]);
     return invalidations;
@@ -514,7 +526,7 @@ export class Batch {
     this.#perfLog.debug(
       `time to determine items that reference ${resolvedPath} ${
         Date.now() - start
-      } ms`,
+      } ms (page count=${pageNumber})`,
     );
     return results.map(({ url, file_alias, type }) => ({
       url,