diff --git a/cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf b/cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf
index 0b5ed420ce6..850e0ad4e3c 100644
--- a/cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf
+++ b/cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf
@@ -266,4 +266,6 @@
    max_retry_wait 30
    # Disable the limit on the number of retries (retry forever).
    disable_retry_limit
+   # Use multiple threads for processing.
+   num_threads 8
 </match>
diff --git a/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd-journal.conf b/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd-journal.conf
index b0a4fd401ab..d02a7a22780 100644
--- a/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd-journal.conf
+++ b/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd-journal.conf
@@ -234,6 +234,8 @@
   max_retry_wait 30
   # Disable the limit on the number of retries (retry forever).
   disable_retry_limit
+  # Use multiple threads for processing.
+  num_threads 8
 </match>
 
 # Keep a smaller buffer here since these logs are less important than the user's
@@ -246,4 +248,5 @@
   flush_interval 5s
   max_retry_wait 30
   disable_retry_limit
+  num_threads 8
 </match>
diff --git a/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd.conf b/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd.conf
index a4c918dd54e..bce71ae584d 100644
--- a/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd.conf
+++ b/cluster/addons/fluentd-gcp/fluentd-gcp-image/google-fluentd.conf
@@ -218,6 +218,8 @@
   max_retry_wait 30
   # Disable the limit on the number of retries (retry forever).
   disable_retry_limit
+  # Use multiple threads for processing.
+  num_threads 8
 </match>
 
 # Keep a smaller buffer here since these logs are less important than the user's
@@ -230,4 +232,5 @@
   flush_interval 5s
   max_retry_wait 30
   disable_retry_limit
+  num_threads 8
 </match>