filesetup: add native fallocate

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index ca99ad743f65d7333faef5caa21f30c4e286bdf1..9783646d752988a455b24a2fc029f1725c848e48 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -436,6 +436,10 @@ are:
 .B none
 Do not pre-allocate space.
 .TP
+.B native
+Use a platform's native pre-allocation call but fall back to 'none' behavior if
+it fails/is not implemented.
+.TP
 .B posix
 Pre-allocate via \fBposix_fallocate\fR\|(3).
 .TP
@@ -450,8 +454,9 @@ Backward-compatible alias for 'posix'.
 .RE
 .P
 May not be available on all supported platforms. 'keep' is only
-available on Linux. If using ZFS on Solaris this must be set to 'none'
-because ZFS doesn't support it. Default: 'posix'.
+available on Linux. If using ZFS on Solaris this cannot be set to 'posix'
+because ZFS doesn't support it. Default: 'native' if any pre-allocation methods
+are available, 'none' if not.
 .RE
 .TP
 .BI fadvise_hint \fR=\fPstr
@@ -676,8 +681,11 @@ Use a zipfian distribution to decide what file to access.
 .B pareto
 Use a pareto distribution to decide what file to access.
 .TP
+.B normal
+Use a Gaussian (normal) distribution to decide what file to access.
+.TP
 .B gauss
-Use a gaussian (normal) distribution to decide what file to access.
+Alias for normal.
 .RE
 .P
 For \fBrandom\fR, \fBroundrobin\fR, and \fBsequential\fR, a postfix can be
@@ -1004,8 +1012,8 @@ Zipf distribution
 .B pareto
 Pareto distribution
 .TP
-.B gauss
-Normal (gaussian) distribution
+.B normal
+Normal (Gaussian) distribution
 .TP
 .B zoned
 Zoned random distribution
@@ -1017,8 +1025,8 @@ For \fBpareto\fR, it's the pareto power. Fio includes a test program, genzipf,
 that can be used visualize what the given input values will yield in terms of
 hit rates. If you wanted to use \fBzipf\fR with a theta of 1.2, you would use
 random_distribution=zipf:1.2 as the option. If a non-uniform model is used,
-fio will disable use of the random map. For the \fBgauss\fR distribution, a
-normal deviation is supplied as a value between 0 and 100.
+fio will disable use of the random map. For the \fBnormal\fR distribution, a
+normal (Gaussian) deviation is supplied as a value between 0 and 100.
 .P
 .RS
 For a \fBzoned\fR distribution, fio supports specifying percentages of IO