Make kb_base apply to parser k/m/g etc values

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 7b1fc8029008e683b17cb4710ea586285e1c0cd8..b3925b5f19b766b3cdba94ceca463e01adcde58b 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -78,9 +78,10 @@ String: a sequence of alphanumeric characters.
 .TP
 .I int
 SI integer: a whole number, possibly containing a suffix denoting the base unit
-of the value.  Accepted suffixes are `k', 'M' and 'G', denoting kilo (1024),
-mega (1024*1024) and giga (1024*1024*1024) respectively. If prefixed with '0x',
-the value is assumed to be base 16 (hexadecimal).
+of the value.  Accepted suffixes are `k', 'M', 'G', 'T', and 'P', denoting
+kilo (1024), mega (1024^2), giga (1024^3), tera (1024^4), and peta (1024^5)
+respectively. The suffix is not case sensitive. If prefixed with '0x', the
+value is assumed to be base 16 (hexadecimal).
 .TP
 .I bool
 Boolean: a true or false value. `0' denotes false, `1' denotes true.
@@ -172,6 +173,11 @@ to perform before getting a new offset can be specified by appending
 `:\fIint\fR' to the pattern type.  The default is 1.
 .RE
 .TP
+.BI kb_base \fR=\fPint
+The base unit for a kilobyte. The defacto base is 2^10, 1024.  Storage
+manufacturers like to use 10^3 or 1000 as a base ten unit instead, for obvious
+reasons. Allow values are 1024 or 1000, with 1024 being the default.
+.TP
 .BI randrepeat \fR=\fPbool
 Seed the random number generator in a predictable way so results are repeatable
 across runs.  Default: true.
@@ -523,7 +529,7 @@ sum of the \fBiomem_align\fR and \fBbs\fR used.
 .TP
 .BI hugepage\-size \fR=\fPint
 Defines the size of a huge page.  Must be at least equal to the system setting.
-Should be a multiple of 1MiB. Default: 4MiB.
+Should be a multiple of 1MB. Default: 4MB.
 .TP
 .B exitall
 Terminate all jobs when one finishes.  Default: wait for each job to finish.
@@ -602,7 +608,9 @@ false.
 Fio will normally verify IO inline from the submitting thread. This option
 takes an integer describing how many async offload threads to create for IO
 verification instead, causing fio to offload the duty of verifying IO contents
-to one or more separate threads.
+to one or more separate threads.  If using this offload option, even sync IO
+engines can benefit from using an \fBiodepth\fR setting higher than 1, as it
+allows them to have IO in flight while verifies are running.
 .TP
 .BI verify_async_cpus \fR=\fPstr
 Tell fio to set the given CPU affinity on the async IO verification threads.
@@ -869,7 +877,7 @@ semicolon-delimited format suitable for scripted use.  The fields are:
 .P
 Read status:
 .RS
-.B KiB I/O, bandwidth \fR(KiB/s)\fP, runtime \fR(ms)\fP
+.B KB I/O, bandwidth \fR(KB/s)\fP, runtime \fR(ms)\fP
 .P
 Submission latency:
 .RS
@@ -887,7 +895,7 @@ Bandwidth:
 .P
 Write status:
 .RS
-.B KiB I/O, bandwidth \fR(KiB/s)\fP, runtime \fR(ms)\fP
+.B KB I/O, bandwidth \fR(KB/s)\fP, runtime \fR(ms)\fP
 .P
 Submission latency:
 .RS