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-rw-r--r--sys/boot/common/loader.88
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/boot/common/loader.8 b/sys/boot/common/loader.8
index fe247ac..cac5674 100644
--- a/sys/boot/common/loader.8
+++ b/sys/boot/common/loader.8
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd October 1, 2013
+.Dd December 22, 2014
.Dt LOADER 8
.Os
.Sh NAME
@@ -670,6 +670,12 @@ Overrides the compile-time set value of
.Dv TCBHASHSIZE
or the preset default of 512.
Must be a power of 2.
+.It Va twiddle_divisor
+Throttles the output of the `twiddle' I/O progress indicator displayed
+while loading the kernel and modules.
+This is useful on slow serial consoles where the time spent waiting for
+these characters to be written can add up to many seconds.
+The default is 1 (full speed); a value of 2 spins half as fast, and so on.
.It Va vm.kmem_size
Sets the size of kernel memory (bytes).
This overrides the value determined when the kernel was compiled.
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