add maximum batch payload size experimental feature

Author: guimachiavelli

learn/resources/experimental_features_overview.mdx

@@ -57,3 +57,4 @@ Activating or deactivating experimental features this way does not require you t
 | [Dumpless upgrade](/learn/self_hosted/configure_meilisearch_at_launch#dumpless-upgrade)         | Upgrade Meilisearch without generating a dump                              | API route                                   |
 | [Composite embedders](/reference/api/settings#composite-embedders)                              | Enable composite embedders                                                 | API route                                   |
 | [Search query embedding cache](/learn/self_hosted/configure_meilisearch_at_launch#search-query-embedding-cache) | Enable a cache for search query embeddings                 | CLI flag or environment variable            |
+| [Maximum batch payload size](/learn/self_hosted/configure_meilisearch_at_launch#maximum-batch-payload-size) | Limit batch payload size                                       | CLI flag or environment variable            |

learn/self_hosted/configure_meilisearch_at_launch.mdx

@@ -506,6 +506,15 @@ Includes an authentication token in the authorization header when notifying the
 
 Limit the number of tasks Meilisearch performs in a single batch. May improve stability in systems handling a large queue of resource-intensive tasks.
 
+### Maximum batch payload size <NoticeTag type="experimental" label="experimental" />
+
+**Environment variable**: `MEILI_EXPERIMENTAL_LIMIT_BATCHED_TASKS_TOTAL_SIZE`<br />
+**CLI option**: `--experimental-limit-batched-tasks-total-size`<br />
+**Default value**: `None`<br />
+**Expected value**: an integer
+
+Sets a maximum total payload size for batches in bytes. Smaller batches are less efficient, but consume less RAM and reduce immediate latency.
+
 ### Replication parameters <NoticeTag type="experimental" label="experimental" />
 
 <Warning>