diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-16cores.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-16cores.yaml
index 9fb9048bbd..dabd1f7666 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-16cores.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-16cores.yaml
@@ -4,8 +4,8 @@ from_template:
   variables:
     num_cores: 16
     engine_core_range: "0-15"
-    loadgen_cores: 48
-    loadgen_core_range: "16-63"
+    loadgen_cores: 32
+    loadgen_core_range: "16-47"
     backend_cores: 16
-    backend_core_range: "64-79"
+    backend_core_range: "48-63"
     max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-1core.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-1core.yaml
index acb5d38a35..4dfb4eeb62 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-1core.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-1core.yaml
@@ -4,8 +4,8 @@ from_template:
   variables:
     num_cores: 1
     engine_core_range: "0-0"
-    loadgen_cores: 3
-    loadgen_core_range: "1-3"
+    loadgen_cores: 2
+    loadgen_core_range: "1-2"
     backend_cores: 1
-    backend_core_range: "4-4"
+    backend_core_range: "3-3"
     max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-2cores.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-2cores.yaml
index 9bcf8d06c6..57c7b9b224 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-2cores.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-2cores.yaml
@@ -4,8 +4,8 @@ from_template:
   variables:
     num_cores: 2
     engine_core_range: "0-1"
-    loadgen_cores: 6
-    loadgen_core_range: "2-7"
+    loadgen_cores: 4
+    loadgen_core_range: "2-5"
     backend_cores: 2
-    backend_core_range: "8-9"
+    backend_core_range: "6-7"
     max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-32cores.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-32cores.yaml
new file mode 100644
index 0000000000..f6b287816b
--- /dev/null
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-32cores.yaml
@@ -0,0 +1,11 @@
+# Saturation test with 32 core df_engine
+from_template:
+  path: test_suites/integration/continuous/saturation-cores-template.yaml.j2
+  variables:
+    num_cores: 32
+    engine_core_range: "0-31"
+    loadgen_cores: 64
+    loadgen_core_range: "32-95"
+    backend_cores: 32
+    backend_core_range: "96-127"
+    max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-4cores.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-4cores.yaml
index f2d078495a..42c4af9d4d 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-4cores.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-4cores.yaml
@@ -4,8 +4,8 @@ from_template:
   variables:
     num_cores: 4
     engine_core_range: "0-3"
-    loadgen_cores: 12
-    loadgen_core_range: "4-15"
+    loadgen_cores: 8
+    loadgen_core_range: "4-11"
     backend_cores: 4
-    backend_core_range: "16-19"
+    backend_core_range: "12-15"
     max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-8cores.yaml b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-8cores.yaml
index 99bbfa1751..5bbf396ce6 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-8cores.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-8cores.yaml
@@ -4,8 +4,8 @@ from_template:
   variables:
     num_cores: 8
     engine_core_range: "0-7"
-    loadgen_cores: 24
-    loadgen_core_range: "8-31"
+    loadgen_cores: 16
+    loadgen_core_range: "8-23"
     backend_cores: 8
-    backend_core_range: "32-39"
+    backend_core_range: "24-31"
     max_batch_size: 512
diff --git a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-cores-template.yaml.j2 b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-cores-template.yaml.j2
index c28a034031..cf23c53d07 100644
--- a/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-cores-template.yaml.j2
+++ b/tools/pipeline_perf_test/test_suites/integration/continuous/saturation-cores-template.yaml.j2
@@ -78,3 +78,5 @@ tests:
         observation_interval: 60
         signals_per_second: null # Using null means loadgen don't self-cap the rate.
         max_batch_size: {{max_batch_size}}
+        data_source: static
+        log_body_size_bytes: 1024
diff --git a/tools/pipeline_perf_test/test_suites/integration/templates/configs/loadgen/config.yaml.j2 b/tools/pipeline_perf_test/test_suites/integration/templates/configs/loadgen/config.yaml.j2
index 70405f2475..b6ccd79539 100644
--- a/tools/pipeline_perf_test/test_suites/integration/templates/configs/loadgen/config.yaml.j2
+++ b/tools/pipeline_perf_test/test_suites/integration/templates/configs/loadgen/config.yaml.j2
@@ -16,7 +16,7 @@ groups:
           receiver:
             type: "urn:otel:receiver:traffic_generator"
             config:
-              data_source: semantic_conventions
+              data_source: {{ data_source | default("semantic_conventions") }}
               generation_strategy: {{ generation_strategy | default("pre_generated") }}
               traffic_config:
                 max_batch_size: {{ max_batch_size | default(1000) }}
@@ -24,6 +24,7 @@ groups:
                 metric_weight: {{ metric_weight | default(0) }}
                 trace_weight: {{ trace_weight | default(0) }}
                 log_weight: {{ log_weight | default(100) }}
+                {% if log_body_size_bytes is defined %}log_body_size_bytes: {{ log_body_size_bytes }}{% endif %}
 
 {%- set exporter_type = loadgen_exporter_type | default("otap") %}
 {%- set engine_host = engine_hostname | default("localhost") %}
diff --git a/tools/pipeline_perf_test/test_suites/integration/templates/test_steps/df-loadgen-steps-docker.yaml b/tools/pipeline_perf_test/test_suites/integration/templates/test_steps/df-loadgen-steps-docker.yaml
index 87301270d7..10331d9285 100644
--- a/tools/pipeline_perf_test/test_suites/integration/templates/test_steps/df-loadgen-steps-docker.yaml
+++ b/tools/pipeline_perf_test/test_suites/integration/templates/test_steps/df-loadgen-steps-docker.yaml
@@ -78,6 +78,8 @@ steps:
                 # compression_method: zstd           # Default is 'zstd' for otap, 'gzip' for otlp
                 engine_hostname: df-engine
                 loadgen_exporter_type: '{{loadgen_exporter_type}}'
+                data_source: {{data_source | default("semantic_conventions")}}
+                {% if log_body_size_bytes is defined %}log_body_size_bytes: {{log_body_size_bytes}}{% endif %}
 
         post:
           # Wait for the telemetry endpoint to be active (TODO: switch to healthcheck endpoint when available).