diff --git a/deploy/cluster-configuration.yaml b/deploy/cluster-configuration.yaml
index da39a5f39..2db619b02 100644
--- a/deploy/cluster-configuration.yaml
+++ b/deploy/cluster-configuration.yaml
@@ -78,12 +78,9 @@ spec:
   devops:                  # (CPU: 0.47 Core, Memory: 8.6 G) Provide an out-of-the-box CI/CD system based on Jenkins, and automated workflow tools including Source-to-Image & Binary-to-Image.
     enabled: false             # Enable or disable the KubeSphere DevOps System.
     # resources: {}
-    jenkinsMemoryLim: 2Gi      # Jenkins memory limit.
+    jenkinsMemoryLim: 4Gi      # Jenkins memory limit.
     jenkinsMemoryReq: 1500Mi   # Jenkins memory request.
     jenkinsVolumeSize: 8Gi     # Jenkins volume size.
-    jenkinsJavaOpts_Xms: 1200m  # The following three fields are JVM parameters.
-    jenkinsJavaOpts_Xmx: 1600m
-    jenkinsJavaOpts_MaxRAM: 2g
   events:                  # Provide a graphical web console for Kubernetes Events exporting, filtering and alerting in multi-tenant Kubernetes clusters.
     enabled: false         # Enable or disable the KubeSphere Events System.
     # operator:
diff --git a/docs/vars.md b/docs/vars.md
index c4cea8781..45ada6d71 100644
--- a/docs/vars.md
+++ b/docs/vars.md
@@ -26,13 +26,10 @@ alerting:
 auditing:
   enabled: false
 devops:
-  enabled: false
-  jenkinsMemoryLim: 2Gi
-  jenkinsMemoryReq: 1500Mi
-  jenkinsVolumeSize: 8Gi
-  jenkinsJavaOpts_Xms: 512m
-  jenkinsJavaOpts_Xmx: 512m
-  jenkinsJavaOpts_MaxRAM: 2g
+  enabled: false             # Enable or disable the KubeSphere DevOps System.
+  jenkinsMemoryLim: 4Gi      # Jenkins memory limit.
+  jenkinsMemoryReq: 1500Mi   # Jenkins memory request.
+  jenkinsVolumeSize: 8Gi     # Jenkins volume size.
 events:
   enabled: false
 logging:
diff --git a/roles/ks-devops/defaults/main.yaml b/roles/ks-devops/defaults/main.yaml
index 7ccc792af..97bb8d55f 100644
--- a/roles/ks-devops/defaults/main.yaml
+++ b/roles/ks-devops/defaults/main.yaml
@@ -5,9 +5,7 @@ devops:
   jenkinsMemoryReq: "{{ jenkins_memory_req |default('4Gi') }}"
 
 JavaOpts: >
-  -Xms{{ devops.jenkinsJavaOpts_Xms | default('3g') }}
-  -Xmx{{ devops.jenkinsJavaOpts_Xmx | default('6g') }}
-  -XX:MaxRAM={{ devops.jenkinsJavaOpts_MaxRAM | default('8g') }}
+  -XX:MaxRAMPercentage=80 -XX:MinRAMPercentage=60
   -Dhudson.slaves.NodeProvisioner.initialDelay=20
   -Dhudson.slaves.NodeProvisioner.MARGIN=50
   -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85
@@ -17,6 +15,8 @@ JavaOpts: >
   -Dhudson.security.csrf.DefaultCrumbIssuer.EXCLUDE_SESSION_ID=true
   -Dio.jenkins.plugins.casc.ConfigurationAsCode.initialDelay=10000
   -Djenkins.install.runSetupWizard=false
+  -XX:+AlwaysPreTouch
+  -XX:+HeapDumpOnOutOfMemoryError
   -XX:+UseG1GC
   -XX:+UseStringDeduplication
   -XX:+ParallelRefProcEnabled
diff --git a/roles/ks-devops/templates/ks-devops-values.yaml.j2 b/roles/ks-devops/templates/ks-devops-values.yaml.j2
index 2c101861c..5da0fbfb4 100644
--- a/roles/ks-devops/templates/ks-devops-values.yaml.j2
+++ b/roles/ks-devops/templates/ks-devops-values.yaml.j2
@@ -78,7 +78,7 @@ jenkins:
         cpu: "0.1"
         memory: "{{ devops.jenkinsMemoryReq }}"
       limits:
-        cpu: "1"
+        cpu: "2"
         memory: "{{ devops.jenkinsMemoryLim }}"
     JavaOpts: "{{ JavaOpts }}"
   Agent: