rand: add 64-bit tausworthe variant with a 2^258 cycle

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 6c4e5c8f16ad492be550ff73f4b291b077ec113d..1657082526d253207037a52d9fecc18fa394b666 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -843,6 +843,9 @@ Strong 2^88 cycle random number generator
 .B lfsr
 Linear feedback shift register generator
 .TP
+.B tausworthe64
+Strong 64-bit 2^258 cycle random number generator
+.TP
 .RE
 .P
 Tausworthe is a strong random number generator, but it requires tracking on the
@@ -1075,6 +1078,17 @@ If true, fio will only run the setup phase of the job. If files need to be
 laid out or updated on disk, only that will be done. The actual job contents
 are not executed.
 .TP
+.BI allow_file_create \fR=\fPbool
+If true, fio is permitted to create files as part of its workload. This is
+the default behavior. If this option is false, then fio will error out if the
+files it needs to use don't already exist. Default: true.
+.TP
+.BI allow_mounted_write \fR=\fPbool
+If this isn't set, fio will abort jobs that are destructive (eg that write)
+to what appears to be a mounted device or partition. This should help catch
+creating inadvertently destructive tests, not realizing that the test will
+destroy data on the mounted file system. Default: false.
+.TP
 .BI pre_read \fR=\fPbool
 If this is given, files will be pre-read into memory before starting the given
 IO operation. This will also clear the \fR \fBinvalidate\fR flag, since it is