X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.1;h=401d9566632b9ca47944c98e3e81ede8fac982fd;hb=e078de4a1c4e27f1938db4656e4d7cb6f98a8e1c;hp=586edcc72500b966effe977197afc5fdd9817b5b;hpb=9db01ef976006c002b05fa4e4ec589eb029aac5b;p=fio.git diff --git a/fio.1 b/fio.1 index 586edcc7..401d9566 100644 --- a/fio.1 +++ b/fio.1 @@ -54,6 +54,12 @@ Convert \fIjobfile\fR to a set of command-line options. Specifies when real-time ETA estimate should be printed. \fIwhen\fR may be one of `always', `never' or `auto'. .TP +.BI \-\-eta\-newline \fR=\fPtime +Force an ETA newline for every `time` period passed. +.TP +.BI \-\-status\-interval \fR=\fPtime +Report full output status every `time` period passed. +.TP .BI \-\-readonly Turn on safety read-only checks, preventing any attempted write. .TP @@ -151,6 +157,34 @@ a number of files by separating the names with a `:' character. `\-' is a reserved name, meaning stdin or stdout, depending on the read/write direction set. .TP +.BI filename_format \fR=\fPstr +If sharing multiple files between jobs, it is usually necessary to have +fio generate the exact names that you want. By default, fio will name a file +based on the default file format specification of +\fBjobname.jobnumber.filenumber\fP. With this option, that can be +customized. Fio will recognize and replace the following keywords in this +string: +.RS +.RS +.TP +.B $jobname +The name of the worker thread or process. +.TP +.B $jobnum +The incremental number of the worker thread or process. +.TP +.B $filenum +The incremental number of the file for that worker thread or process. +.RE +.P +To have dependent jobs share a set of files, this option can be set to +have fio generate filenames that are shared between the two. For instance, +if \fBtestfiles.$filenum\fR is specified, file number 4 for any job will +be named \fBtestfiles.4\fR. The default of \fB$jobname.$jobnum.$filenum\fR +will be used if no other format specifier is given. +.RE +.P +.TP .BI lockfile \fR=\fPstr Fio defaults to not locking any files before it does IO to them. If a file or file descriptor is shared, fio can serialize IO to that file to make the end @@ -169,10 +203,6 @@ Only one thread or process may do IO at the time, excluding all others. Read-write locking on the file. Many readers may access the file at the same time, but writes get exclusive access. .RE -.P -The option may be post-fixed with a lock batch number. If set, then each -thread/process may do that amount of IOs to the file before giving up the lock. -Since lock acquisition is expensive, batching the lock/unlocks will speed up IO. .RE .P .BI opendir \fR=\fPstr @@ -1010,7 +1040,7 @@ Disable measurements of throughput/bandwidth numbers. See \fBdisable_lat\fR. .TP .BI lockmem \fR=\fPint Pin the specified amount of memory with \fBmlock\fR\|(2). Can be used to -simulate a smaller amount of memory. +simulate a smaller amount of memory. The amount specified is per worker. .TP .BI exec_prerun \fR=\fPstr Before running the job, execute the specified command with \fBsystem\fR\|(3).