diff --git a/MD5 b/MD5
index 918d337..4c05112 100644
--- a/MD5
+++ b/MD5
@@ -9,7 +9,7 @@ d143e1321d840bb810d9648e54e22c9c *man/fpos.Rd
 1cce4277e2dd16a0f68c96d744b7bc17 *man/funique.Rd
 3e0b7c90f2f4a9c4be404cbc6ac69b16 *man/iif.Rd
 578fe4903cc4f5d7bc5a6f346be1e9e9 *man/nif.Rd
-f743be513a551d48d04f0a5f31c5f27d *man/psort.Rd
+ef4ce6330a0f6a2ec63ccfd365729963 *man/psort.Rd
 d4d3e5eb9266703d533ef42053474ac6 *man/psum.Rd
 14e3add07190fd18d0161f4f0b0b5257 *man/setlevels.Rd
 e0d3b091b5182fdcc8868c93a2c59476 *man/topn.Rd
diff --git a/man/psort.Rd b/man/psort.Rd
index b4b4133..1c11b4f 100644
--- a/man/psort.Rd
+++ b/man/psort.Rd
@@ -25,4 +25,18 @@ x = c("b","A","B","a","\xe4")
 Encoding(x) = "latin1"
 identical(psort(x, c.locale=FALSE), sort(x))
 identical(psort(x, c.locale=TRUE), sort(x, method="radix"))
+
+# Benchmarks
+# ----------
+# strings = as.character(as.hexmode(1:1000))
+# x = sample(strings, 1e8, replace=TRUE)
+# system.time({kit::psort(x, na.last = TRUE, nThread = 1L)})
+#   user  system elapsed 
+#  2.833   0.434   3.277
+# system.time({sort(x,method="radix",na.last = TRUE)})
+#   user  system elapsed 
+#  5.597   0.559   6.176
+# system.time({x[order(x,method="radix",na.last = TRUE)]})
+#   user  system elapsed 
+#  5.561   0.563   6.143
 }