tausworthe Strong 2^88 cycle random number generator
lfsr Linear feedback shift register generator
+ tausworthe64 Strong 64-bit 2^258 cycle random number
+ generator
Tausworthe is a strong random number generator, but it
requires tracking on the side if we want to ensure that
option is false, then fio will error out if the files it
needs to use don't already exist. Default: true.
+allow_mounted_write=bool If this isn't set, fio will abort jobs that
+ are destructive (eg that write) to what appears to be a
+ mounted device or partition. This should help catch creating
+ inadvertently destructive tests, not realizing that the test
+ will destroy data on the mounted file system. Default: false.
+
pre_read=bool If this is given, files will be pre-read into memory before
starting the given IO operation. This will also clear
the 'invalidate' flag, since it is pointless to pre-read
verified for workloads that write data.
See also verify_pattern.
+ pattern Verify a strict pattern. Normally fio includes
+ a header with some basic information and
+ checksumming, but if this option is set, only
+ the specific pattern set with 'verify_pattern'
+ is verified.
+
null Only pretend to verify. Useful for testing
internals with ioengine=null, not for much
else.