X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.1;h=910812fb5bef351bc8a8ca5d557aacb3bf2e0a8f;hb=25927259f482b0288d962e36dbfd33ec90a69521;hp=aeba39a36f760554540c714606b9089f8175614a;hpb=b8bc8cba9512c6dce4891fda86de675053605ca2;p=fio.git

diff --git a/fio.1 b/fio.1
index aeba39a3..910812fb 100644
--- a/fio.1
+++ b/fio.1
@@ -281,7 +281,7 @@ because ZFS doesn't support it. Default: 'posix'.
 .RE
 .TP
 .BI fadvise_hint \fR=\fPbool
-Disable use of \fIposix_fadvise\fR\|(2) to advise the kernel what I/O patterns
+Use of \fIposix_fadvise\fR\|(2) to advise the kernel what I/O patterns
 are likely to be issued. Default: true.
 .TP
 .BI size \fR=\fPint
@@ -958,6 +958,27 @@ the thread/process does any work.
 .BI gid \fR=\fPint
 Set group ID, see \fBuid\fR.
 .TP
+.BI flow_id \fR=\fPint
+The ID of the flow. If not specified, it defaults to being a global flow. See
+\fBflow\fR.
+.TP
+.BI flow \fR=\fPint
+Weight in token-based flow control. If this value is used, then there is a
+\fBflow counter\fR which is used to regulate the proportion of activity between
+two or more jobs. fio attempts to keep this flow counter near zero. The
+\fBflow\fR parameter stands for how much should be added or subtracted to the
+flow counter on each iteration of the main I/O loop. That is, if one job has
+\fBflow=8\fR and another job has \fBflow=-1\fR, then there will be a roughly
+1:8 ratio in how much one runs vs the other.
+.TP
+.BI flow_watermark \fR=\fPint
+The maximum value that the absolute value of the flow counter is allowed to
+reach before the job must wait for a lower value of the counter.
+.TP
+.BI flow_sleep \fR=\fPint
+The period of time, in microseconds, to wait after the flow watermark has been
+exceeded before retrying operations
+.TP
 .BI clat_percentiles \fR=\fPbool
 Enable the reporting of percentiles of completion latencies.
 .TP