Update HOWTO with 0x base for siint

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index f256f24fde3a28cd20e7a25786ec6481f766b305..6f8f3f4ccf35818610b50de85874d23e6692a23f 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -208,7 +208,9 @@ siint       SI integer. A whole number value, which may contain a postfix
        you could either write out '4096' or just give 4k. The postfixes
        signify base 2 values, so 1024 is 1k and 1024k is 1m and so on.
        If the option accepts an upper and lower range, use a colon ':'
-       or minus '-' to separate such values. See irange.
+       or minus '-' to separate such values. May also include a prefix
+       to indicate numbers base. If 0x is used, the number is assumed to
+       be hexadecimal. See irange.
 bool   Boolean. Usually parsed as an integer, however only defined for
        true and false (1 and 0).
 irange Integer range with postfix. Allows value range to be given, such
@@ -387,6 +389,10 @@ file_service_type=str  Defines how fio decides which file from a job to
                        roundrobin  Round robin over open files. This
                                is the default.
 
+                       sequential  Finish one file before moving on to
+                               the next. Multiple files can still be
+                               open depending on 'openfiles'.
+
                The string can have a number appended, indicating how
                often to switch to a new file. So if option random:4 is
                given, fio will switch to a new random file after 4 ios
@@ -532,9 +538,9 @@ norandommap Normally fio will cover every block of the file when doing
                new random offset without looking at past io history. This
                means that some blocks may not be read or written, and that
                some blocks may be read/written more than once. This option
-               is mutually exclusive with verify= for that reason, since
-               fio doesn't track potential block rewrites which may alter
-               the calculated checksum for that block.
+               is mutually exclusive with verify= if and only if multiple
+               blocksizes (via bsrange=) are used, since fio only tracks
+               complete rewrites of blocks.
 
 softrandommap  See norandommap. If fio runs with the random block map enabled
                and it fails to allocate the map, if this option is set it
@@ -689,6 +695,9 @@ create_serialize=bool       If true, serialize the file creating for the jobs.
 create_fsync=bool      fsync the data file after creation. This is the
                        default.
 
+create_on_open=bool    Don't pre-setup the files for IO, just create open()
+                       when it's time to do IO to that file.
+
 unlink=bool    Unlink the job files when done. Not the default, as repeated
                runs of that job would then waste time recreating the file
                set again and again.