diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 6abb29ecafe..7b6ea8b24df 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -2160,6 +2160,11 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
       <entry>Waiting during recovery when WAL data is not available from any
        source (<filename>pg_wal</filename>, archive or stream).</entry>
      </row>
+     <row>
+      <entry><literal>RegisterSyncRequest</literal></entry>
+      <entry>Waiting while sending synchronization requests to the
+       checkpointer, because the request queue is full.</entry>
+     </row>
      <row>
       <entry><literal>VacuumDelay</literal></entry>
       <entry>Waiting in a cost-based vacuum delay point.</entry>
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index 24e54d6766f..1e2064456b0 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -3919,6 +3919,9 @@ pgstat_get_wait_timeout(WaitEventTimeout w)
 		case WAIT_EVENT_RECOVERY_RETRIEVE_RETRY_INTERVAL:
 			event_name = "RecoveryRetrieveRetryInterval";
 			break;
+		case WAIT_EVENT_REGISTER_SYNC_REQUEST:
+			event_name = "RegisterSyncRequest";
+			break;
 		case WAIT_EVENT_VACUUM_DELAY:
 			event_name = "VacuumDelay";
 			break;
diff --git a/src/backend/storage/sync/sync.c b/src/backend/storage/sync/sync.c
index 4ce2e687d3c..d8c02220a29 100644
--- a/src/backend/storage/sync/sync.c
+++ b/src/backend/storage/sync/sync.c
@@ -27,6 +27,7 @@
 #include "postmaster/bgwriter.h"
 #include "storage/bufmgr.h"
 #include "storage/ipc.h"
+#include "storage/latch.h"
 #include "storage/md.h"
 #include "utils/hsearch.h"
 #include "utils/inval.h"
@@ -585,7 +586,8 @@ RegisterSyncRequest(const FileTag *ftag, SyncRequestType type,
 		if (ret || (!ret && !retryOnError))
 			break;
 
-		pg_usleep(10000L);
+		WaitLatch(NULL, WL_EXIT_ON_PM_DEATH | WL_TIMEOUT, 10,
+				  WAIT_EVENT_REGISTER_SYNC_REQUEST);
 	}
 
 	return ret;
diff --git a/src/include/pgstat.h b/src/include/pgstat.h
index c55dc1481ca..46fa42c2013 100644
--- a/src/include/pgstat.h
+++ b/src/include/pgstat.h
@@ -902,7 +902,8 @@ typedef enum
 	WAIT_EVENT_PG_SLEEP,
 	WAIT_EVENT_RECOVERY_APPLY_DELAY,
 	WAIT_EVENT_RECOVERY_RETRIEVE_RETRY_INTERVAL,
-	WAIT_EVENT_VACUUM_DELAY
+	WAIT_EVENT_VACUUM_DELAY,
+	WAIT_EVENT_REGISTER_SYNC_REQUEST
 } WaitEventTimeout;
 
 /* ----------