X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.1;h=a8c0027b15ff3a1cac220a94bf7b750009b481af;hp=eaa1c408843443bc0cfa9d45502d453c054c701c;hb=ca740f4e2bdab2a94a8b6ddecba6dde605fbc866;hpb=ee72ca09d4657f6a805c113d9bc43428f4b28a89 diff --git a/fio.1 b/fio.1 index eaa1c408..a8c0027b 100644 --- a/fio.1 +++ b/fio.1 @@ -231,11 +231,13 @@ divided between the available files for the job. If not set, fio will use the full size of the given files or devices. If the the files do not exist, size must be given. .TP -.BI fill_device \fR=\fPbool +.BI fill_device \fR=\fPbool "\fR,\fB fill_fs" \fR=\fPbool Sets size to something really large and waits for ENOSPC (no space left on device) as the terminating condition. Only makes sense with sequential write. For a read workload, the mount point will be filled first then IO started on -the result. +the result. This option doesn't make sense if operating on a raw device node, +since the size of that is already known by the file system. Additionally, +writing beyond end-of-device will not return ENOSPC there. .TP .BI filesize \fR=\fPirange Individual file sizes. May be a range, in which case \fBfio\fR will select sizes @@ -331,7 +333,13 @@ coalescing adjacents IOs into a single submission. Linux native asynchronous I/O. .TP .B posixaio -glibc POSIX asynchronous I/O using \fIaio_read\fR\|(3) and \fIaio_write\fR\|(3). +POSIX asynchronous I/O using \fIaio_read\fR\|(3) and \fIaio_write\fR\|(3). +.TP +.B solarisaio +Solaris native asynchronous I/O. +.TP +.B windowsaio +Windows native asynchronous I/O. .TP .B mmap File is memory mapped with \fImmap\fR\|(2) and data copied using @@ -686,6 +694,11 @@ has to be a hex number that starts with either "0x" or "0X". Use with If true, exit the job on the first observed verification failure. Default: false. .TP +.BI verify_dump \fR=\fPbool +If set, dump the contents of both the original data block and the data block we +read off disk to files. This allows later analysis to inspect just what kind of +data corruption occurred. On by default. +.TP .BI verify_async \fR=\fPint Fio will normally verify IO inline from the submitting thread. This option takes an integer describing how many async offload threads to create for IO @@ -743,7 +756,9 @@ Skip the specified number of bytes when \fBzonesize\fR bytes of data have been read. .TP .BI write_iolog \fR=\fPstr -Write the issued I/O patterns to the specified file. +Write the issued I/O patterns to the specified file. Specify a separate file +for each job, otherwise the iologs will be interspersed and the file may be +corrupt. .TP .BI read_iolog \fR=\fPstr Replay the I/O patterns contained in the specified file generated by