use poll() and rbd_poll_io_events to speed up io retrieval.

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index d1acebcdeef1e55f50686ab3cb877ad2aa52ed9b..48c2060209be0ec333a666a134b5677f011c0c94 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -30,7 +30,7 @@ dump of the latency buckets.
 Limit run time to \fIruntime\fR seconds.
 .TP
 .B \-\-bandwidth\-log
-Generate per-job bandwidth logs.
+Generate aggregate bandwidth logs.
 .TP
 .B \-\-minimal
 Print statistics in a terse, semicolon-delimited format.
@@ -1246,6 +1246,9 @@ multiple times. Thus it will not work on eg network or splice IO.
 .BI unlink \fR=\fPbool
 Unlink job files when done.  Default: false.
 .TP
+.BI unlink_each_loop \fR=\fPbool
+Unlink job files after each iteration or loop.  Default: false.
+.TP
 .BI loops \fR=\fPint
 Specifies the number of iterations (runs of the same workload) of this job.
 Default: 1.
@@ -1459,13 +1462,13 @@ If set, this generates bw/clat/iops log with per file private filenames. If
 not set, jobs with identical names will share the log filename. Default: true.
 .TP
 .BI write_bw_log \fR=\fPstr
-If given, write a bandwidth log of the jobs in this job file. Can be used to
-store data of the bandwidth of the jobs in their lifetime. The included
-fio_generate_plots script uses gnuplot to turn these text files into nice
-graphs. See \fBwrite_lat_log\fR for behaviour of given filename. For this
-option, the postfix is _bw.x.log, where x is the index of the job (1..N,
-where N is the number of jobs). If \fBper_job_logs\fR is false, then the
-filename will not include the job index. See the \fBLOG FILE FORMATS\fR
+If given, write a bandwidth log for this job. Can be used to store data of the
+bandwidth of the jobs in their lifetime. The included fio_generate_plots script
+uses gnuplot to turn these text files into nice graphs. See \fBwrite_lat_log\fR
+for behaviour of given filename. For this option, the postfix is _bw.x.log,
+where x is the index of the job (1..N, where N is the number of jobs). If
+\fBper_job_logs\fR is false, then the filename will not include the job index.
+See the \fBLOG FILE FORMATS\fR
 section.
 .TP
 .BI write_lat_log \fR=\fPstr
@@ -1543,6 +1546,11 @@ If set, fio will store the log files in a compressed format. They can be
 decompressed with fio, using the \fB\-\-inflate-log\fR command line parameter.
 The files will be stored with a \fB\.fz\fR suffix.
 .TP
+.BI log_unix_epoch \fR=\fPbool
+If set, fio will log Unix timestamps to the log files produced by enabling
+\fBwrite_type_log\fR for each log type, instead of the default zero-based
+timestamps.
+.TP
 .BI block_error_percentiles \fR=\fPbool
 If set, record errors in trim block-sized units from writes and trims and output
 a histogram of how many trims it took to get to errors, and what kind of error