Adds suggestions for more prod-like debugging in DevTools (#18428)

Adds suggestions for more prod-like debugging in DevTools

Co-authored-by: ToriLindsay <[email protected]>

Author: mikenomitch

src/content/docs/workers/observability/dev-tools/cpu-usage.mdx

@@ -14,6 +14,11 @@ Measuring execution time of specific functions in production can be difficult be
 [only increment timers on I/O](/workers/reference/security-model/#step-1-disallow-timers-and-multi-threading)
 for security purposes. However, measuring CPU execution times is possible in local development with DevTools.
 
+When using DevTools to monitor CPU usage, it may be difficult to replicate specific behavior you are
+seeing in production. To mimic production behavior, make sure the requests you send to the local Worker
+are similar to requests in production. This might mean sending a large volume of requests, making requests
+to specific routes, or using production-like data with the [--remote flag](/workers/testing/local-development/#develop-using-remote-resources-and-bindings).
+
 ## Taking a profile
 
 To generate a CPU profile:

src/content/docs/workers/observability/dev-tools/memory-usage.mdx

@@ -13,6 +13,11 @@ You can profile memory usage with snapshots in DevTools. Memory snapshots let yo
 memory usage, see how much memory is allocated to different data types, and get details on specific
 objects in memory.
 
+When using DevTools to profile memory, it may be difficult to replicate specific behavior you are
+seeing in production. To mimic production behavior, make sure the requests you send to the local Worker
+are similar to requests in production. This might mean sending a large volume of requests, making requests
+to specific routes, or using production-like data with the [--remote flag](/workers/testing/local-development/#develop-using-remote-resources-and-bindings).
+
 ## Taking a snapshot
 
 To generate a memory snapshot: