Enable completion latency stat collection on verify

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 2403a5cd13048fc27e3a89de406cddbba6560aeb..c6304a7ca2ed7bf27b65df9ce844efa88f221534 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1101,6 +1101,18 @@ write_lat_log=str Same as write_bw_log, except that this option stores io
 write_bw_log=str If given, write an IOPS log of the jobs in this job
                file. See write_bw_log.
 
+write_iops_log=str Same as write_bw_log, but writes IOPS. If no filename is
+               given with this option, the default filename of
+               "jobname_type.log" is used. Even if the filename is given,
+               fio will still append the type of log.
+
+log_avg_msec=int By default, fio will log an entry in the iops, latency,
+               or bw log for every IO that completes. When writing to the
+               disk log, that can quickly grow to a very large size. Setting
+               this option makes fio average the each log entry over the
+               specified period of time, reducing the resolution of the log.
+               Defaults to 0.
+
 lockmem=int    Pin down the specified amount of memory with mlock(2). Can
                potentially be used instead of removing memory or booting
                with less memory to simulate a smaller amount of memory.
@@ -1170,7 +1182,7 @@ gtod_cpu=int      Sometimes it's cheaper to dedicate a single thread of
                uses. Fio will manually clear it from the CPU mask of other
                jobs.
 
-continue_on_error=bool Normally fio will exit the job on the first observed
+continue_on_error=str  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' (EIO or EILSEQ) until the runtime
                is exceeded or the I/O size specified is completed. If this
@@ -1179,6 +1191,24 @@ continue_on_error=bool   Normally fio will exit the job on the first observed
                given in the stats is the first error that was hit during the
                run.
 
+               The allowed values are:
+
+                       none    Exit on any IO or verify errors.
+
+                       read    Continue on read errors, exit on all others.
+
+                       write   Continue on write errors, exit on all others.
+
+                       io      Continue on any IO error, exit on all others.
+
+                       verify  Continue on verify errors, exit on all others.
+
+                       all     Continue on all errors.
+
+                       0               Backward-compatible alias for 'none'.
+
+                       1               Backward-compatible alias for 'all'.
+
 cgroup=str     Add job to this control group. If it doesn't exist, it will
                be created. The system must have a mounted cgroup blkio
                mount point for this to work. If your system doesn't have it