Add support for the iomem_align option

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index b984a8cbd5e17c9156c4bfd0c773480adc0e66d1..aa7b9d6767ed9a0136a2282c133878383356d143 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -365,6 +365,10 @@ Offset in the file to start I/O. Data before the offset will not be touched.
 How many I/Os to perform before issuing an \fBfsync\fR\|(2) of dirty data.  If
 0, don't sync.  Default: 0.
 .TP
+.BI fdatasync \fR=\fPint
+Like \fBfsync\fR, but uses \fBfdatasync\fR\|(2) instead to only sync the
+data parts of the file. Default: 0.
+.TP
 .BI overwrite \fR=\fPbool
 If writing, setup the file first and do overwrites.  Default: false.
 .TP
@@ -508,6 +512,15 @@ the system must have free huge pages allocated.  \fBmmaphuge\fR also needs to
 have hugetlbfs mounted, and \fIfile\fR must point there.
 .RE
 .TP
+.BI iomem_align \fR=\fPint
+This indiciates the memory alignment of the IO memory buffers. Note that the
+given alignment is applied to the first IO unit buffer, if using \fBiodepth\fR
+the alignment of the following buffers are given by the \fBbs\fR used. In
+other words, if using a \fBbs\fR that is a multiple of the page sized in the
+system, all buffers will be aligned to this value. If using a \fBbs\fR that
+is not page aligned, the alignment of subsequent IO memory buffers is the
+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.
@@ -680,6 +693,14 @@ threads/processes that run IO workloads need only copy that segment, instead of
 entering the kernel with a gettimeofday() call. The CPU set aside for doing
 these time calls will be excluded from other uses. Fio will manually clear it
 from the CPU mask of other jobs.
+.TP
+.BI continue_on_error \fR=\fPbool
+Normally fio will exit the job on the first observed failure. If this option is
+set, fio will continue the job when there is a 'non-fatal error'
+(\fBEIO\fR or \fBEILSEQ\fR) until the runtime is exceeded or the I/O size
+specified is completed. If this option is used, there are two more stats that
+are appended, the total error count and the first error. The error field given
+in the stats is the first error that was hit during the run.
 .SH OUTPUT
 While running, \fBfio\fR will display the status of the created jobs.  For
 example: