zbd: avoid initializing swd when unnecessary

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index a58632b407fc2c95856278fc03a22aef34838f75..1db12c2ff41e7e5bd2df03cd75e55be177611a69 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -2032,8 +2032,9 @@ on the client site it will be used in the rdma_resolve_add()
 function. This can be useful when multiple paths exist between the
 client and the server or in certain loopback configurations.
 .TP
 function. This can be useful when multiple paths exist between the
 client and the server or in certain loopback configurations.
 .TP

-.BI (filestat)lstat \fR=\fPbool
-Use \fBlstat\fR\|(2) to measure lookup/getattr performance. Default: 0.
+.BI (filestat)stat_type \fR=\fPstr
+Specify stat system call type to measure lookup/getattr performance.
+Default is \fBstat\fR for \fBstat\fR\|(2).

 .TP
 .BI (sg)readfua \fR=\fPbool
 With readfua option set to 1, read operations include the force
 .TP
 .BI (sg)readfua \fR=\fPbool
 With readfua option set to 1, read operations include the force


@@ -3000,23 +3001,24 @@ Disable measurements of submission latency numbers. See
 Disable measurements of throughput/bandwidth numbers. See
 \fBdisable_lat\fR.
 .TP
 Disable measurements of throughput/bandwidth numbers. See
 \fBdisable_lat\fR.
 .TP

+.BI slat_percentiles \fR=\fPbool
+Report submission latency percentiles. Submission latency is not recorded
+for synchronous ioengines.
+.TP

 .BI clat_percentiles \fR=\fPbool
 .BI clat_percentiles \fR=\fPbool

-Enable the reporting of percentiles of completion latencies. This option is
-mutually exclusive with \fBlat_percentiles\fR.
+Report completion latency percentiles.

 .TP
 .BI lat_percentiles \fR=\fPbool
 .TP
 .BI lat_percentiles \fR=\fPbool

-Enable the reporting of percentiles of I/O latencies. This is similar to
-\fBclat_percentiles\fR, except that this includes the submission latency.
-This option is mutually exclusive with \fBclat_percentiles\fR.
+Report total latency percentiles. Total latency is the sum of submission
+latency and completion latency.

 .TP
 .BI percentile_list \fR=\fPfloat_list
 .TP
 .BI percentile_list \fR=\fPfloat_list

-Overwrite the default list of percentiles for completion latencies and the
-block error histogram. Each number is a floating number in the range
+Overwrite the default list of percentiles for latencies and the
+block error histogram. Each number is a floating point number in the range

 (0,100], and the maximum length of the list is 20. Use ':' to separate the
 (0,100], and the maximum length of the list is 20. Use ':' to separate the

-numbers, and list the numbers in ascending order. For example,
-`\-\-percentile_list=99.5:99.9' will cause fio to report the values of
-completion latency below which 99.5% and 99.9% of the observed latencies
-fell, respectively.
+numbers. For example, `\-\-percentile_list=99.5:99.9' will cause fio to
+report the latency durations below which 99.5% and 99.9% of the observed
+latencies fell, respectively.

 .TP
 .BI significant_figures \fR=\fPint
 If using \fB\-\-output\-format\fR of `normal', set the significant figures
 .TP
 .BI significant_figures \fR=\fPint
 If using \fB\-\-output\-format\fR of `normal', set the significant figures