diff --git a/experiments/dsv4_p800_sglang/start_server.sh b/experiments/dsv4_p800_sglang/start_server.sh
index 63467b6..435865a 100755
--- a/experiments/dsv4_p800_sglang/start_server.sh
+++ b/experiments/dsv4_p800_sglang/start_server.sh
@@ -9,7 +9,11 @@ source "${SCRIPT_DIR}/../../scripts/common/server_docker.sh"
 # shellcheck source=/dev/null
 source "${SCRIPT_DIR}/config.env"
 
-log_init "${RESULT_ROOT:-/tmp/${EXPERIMENT_NAME}}/logs/start_server.log"
+RUN_ID="${RUN_ID:-$(date '+%Y%m%d-%H%M%S')}"
+RESULT_ROOT="${RESULT_ROOT:-${SCRIPT_DIR}/results/${RUN_ID}}"
+LOG_DIR="${RESULT_ROOT}/logs"
+
+log_init "${LOG_DIR}/start_server.log"
 log "starting server for ${EXPERIMENT_NAME}"
 log "model: ${MODEL_PATH}"
 log "port: ${PORT}"