diff --git a/benchmarks/multi_node/amd_utils/submit.sh b/benchmarks/multi_node/amd_utils/submit.sh
index 44bd130f30..8021063501 100755
--- a/benchmarks/multi_node/amd_utils/submit.sh
+++ b/benchmarks/multi_node/amd_utils/submit.sh
@@ -129,6 +129,7 @@ fi
 sbatch_cmd=(
     sbatch
     --parsable
+    --exclusive
     -N "$NUM_NODES"
     -n "$NUM_NODES"
     "${NODELIST_OPT[@]}"
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index bf9df36148..f616949dd8 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -1,3 +1,20 @@
+- config-keys:
+    - dsr1-fp4-mi355x-atom
+    - dsr1-fp4-mi355x-atom-mtp
+    - dsr1-fp4-mi355x-sglang
+    - dsr1-fp4-mi355x-sglang-disagg
+    - dsr1-fp4-mi355x-sglang-disagg-mtp
+    - dsr1-fp8-mi355x-sglang
+    - dsr1-fp8-mi355x-sglang-disagg
+    - dsr1-fp8-mi355x-sglang-disagg-mtp
+    - gptoss-fp4-mi355x-atom
+    - gptoss-fp4-mi355x-vllm
+    - minimaxm2.5-fp8-mi355x-vllm
+  description:
+    - "Add --exclusive flag to MI355X multi-node sbatch to prevent node sharing during benchmarks"
+    - "Only non-TP8 configs are affected; TP8 already uses all GPUs on the node"
+  pr-link: TBD
+
 - config-keys:
     - dsr1-fp8-b200-dynamo-trt
     - dsr1-fp8-h200-dynamo-trt
@@ -1007,3 +1024,10 @@
     - "EAGLE speculative decoding: num-steps 3, draft-tokens 4, topk 1"
     - "New script: benchmarks/single_node/qwen3.5_fp8_b200_mtp.sh"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/898
+
+- config-keys:
+    - "*mi355x*"
+    - "*mi325x*"
+  description:
+    - "Add --exclusive option to salloc commands on MI325X and MI355X nodes which may yield performance improvements"
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/929
diff --git a/runners/launch_mi325x-amd.sh b/runners/launch_mi325x-amd.sh
index 67f93a309f..ede4eef6ca 100644
--- a/runners/launch_mi325x-amd.sh
+++ b/runners/launch_mi325x-amd.sh
@@ -9,7 +9,7 @@ LOCK_FILE="${SQUASH_FILE}.lock"
 
 set -x
 
-JOB_ID=$(salloc --partition=$PARTITION --gres=gpu:$TP --cpus-per-task=256 --time=480 --no-shell --job-name="$RUNNER_NAME" 2>&1 | tee /dev/stderr | grep -oP 'Granted job allocation \K[0-9]+')
+JOB_ID=$(salloc --partition=$PARTITION --gres=gpu:$TP --exclusive --cpus-per-task=256 --time=480 --no-shell --job-name="$RUNNER_NAME" 2>&1 | tee /dev/stderr | grep -oP 'Granted job allocation \K[0-9]+')
 
 if [ -z "$JOB_ID" ]; then
     echo "ERROR: salloc failed to allocate a job"
diff --git a/runners/launch_mi355x-amds.sh b/runners/launch_mi355x-amds.sh
index fc04f5bb32..52e28e9b87 100644
--- a/runners/launch_mi355x-amds.sh
+++ b/runners/launch_mi355x-amds.sh
@@ -159,7 +159,7 @@ else
     LOCK_FILE="${SQUASH_FILE}.lock"
 
     set -x
-    salloc --partition=$PARTITION --gres=gpu:$TP --cpus-per-task=128 --time=180 --no-shell --job-name="$RUNNER_NAME"
+    salloc --partition=$PARTITION --gres=gpu:$TP --exclusive --cpus-per-task=128 --time=180 --no-shell --job-name="$RUNNER_NAME"
     JOB_ID=$(squeue --name="$RUNNER_NAME" -h -o %A | head -n1)
 
     srun --jobid=$JOB_ID bash -c "docker stop \$(docker ps -a -q)"