diff -up ./tests/sdr/sdr.sh.skip ./tests/sdr/sdr.sh
--- ./tests/sdr/sdr.sh.skip	2022-06-11 09:52:05.037086587 -0700
+++ ./tests/sdr/sdr.sh	2022-06-11 09:52:16.825162027 -0700
@@ -146,7 +146,10 @@ sdr_main()
   RARRAY=($dtime)
   TIMEARRAY=(${RARRAY[1]//./ })
   echo "${TIMEARRAY[0]} seconds"
+  # allow an environment variable to skip the test 
+  if [ "${NSS_SKIP_PWDECRYPT_TIME}" != "true" ]; then
   html_msg ${TIMEARRAY[0]} 0 "pwdecrypt no time regression"
+  fi
   export NSS_MAX_MP_PBE_ITERATION_COUNT=$OLD_MAX_PBE_ITERATIONS
 }