Add support for fdatasync()

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 536e370ba03f0c5f3c9d3d8fc03ddd559c0cc95b..f323c204d3c67be97e98926ae8efd0ae1d82314d 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -530,6 +530,9 @@ fsync=int   If writing to a file, issue a sync of the dirty data
                not sync the file. The exception is the sg io engine, which
                synchronizes the disk cache anyway.
 
+fsyncdata=int  Like fsync= but uses fdatasync() to only sync data and not
+               metadata blocks.
+
 overwrite=bool If true, writes to a file will always overwrite existing
                data. If the file doesn't already exist, it will be
                created before the write phase begins. If the file exists
@@ -928,6 +931,14 @@ gtod_cpu=int       Sometimes it's cheaper to dedicate a single thread of
                for doing these time calls will be excluded from other
                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
+               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
+               option is used, there are two more stats that are appended,
+               the total error count and the first error. The error field
+               given in the stats is the first error that was hit during the
+               run.
 
 
 6.0 Interpreting the output