The following changes since commit dc6d4dbbdd3a12e7df2bc0a713faebeae9d0dca2:
Fio 1.44.1 (2010-10-22 21:44:00 +0200)
are available in the git repository at:
git://git.kernel.dk/fio.git master
David Nellans (1):
Update verify_backlog documentation
Jens Axboe (1):
Update HOWTO as well for verify_backlog
HOWTO | 9 +++++++--
fio.1 | 9 ++++++---
2 files changed, 13 insertions(+), 5 deletions(-)
---
Diff of recent changes:
diff --git a/HOWTO b/HOWTO
index d3639fb..7cb24dd 100644
--- a/HOWTO
+++ b/HOWTO
@@ -935,13 +935,18 @@ verify_backlog=int Fio will normally verify the written contents of a
associated with an IO block in memory, so for large
verify workloads, quite a bit of memory would be used up
holding this meta data. If this option is enabled, fio
+ will write only N blocks before verifying these blocks.
+
will verify the previously written blocks before continuing
to write new ones.
verify_backlog_batch=int Control how many blocks fio will verify
if verify_backlog is set. If not set, will default to
the value of verify_backlog (meaning the entire queue
- is read back and verified).
+ is read back and verified). If verify_backlog_batch is
+ less than verify_backlog then not all blocks will be verified,
+ if verify_backlog_batch is larger than verify_backlog, some
+ blocks will be verified more than once.
stonewall Wait for preceeding jobs in the job file to exit, before
starting this one. Can be used to insert serialization
@@ -1287,4 +1292,4 @@ Split up, the format is as follows:
IO latencies milliseconds: <=2, 4, 10, 20, 50, 100, 250, 500, 750, 1000, 2000, >=2000
Additional Info (dependant on continue_on_error, default off): total # errors, first error code
- Additional Info (dependant on description being set): Text description
\ No newline at end of file
+ Additional Info (dependant on description being set): Text description
diff --git a/fio.1 b/fio.1
index 9ca38ab..f01bf3a 100644
--- a/fio.1
+++ b/fio.1
@@ -698,13 +698,16 @@ once that job has completed. In other words, everything is written then
everything is read back and verified. You may want to verify continually
instead for a variety of reasons. Fio stores the meta data associated with an
IO block in memory, so for large verify workloads, quite a bit of memory would
-be used up holding this meta data. If this option is enabled, fio will verify
-the previously written blocks before continuing to write new ones.
+be used up holding this meta data. If this option is enabled, fio will write
+only N blocks before verifying these blocks.
.TP
.BI verify_backlog_batch \fR=\fPint
Control how many blocks fio will verify if verify_backlog is set. If not set,
will default to the value of \fBverify_backlog\fR (meaning the entire queue is
-read back and verified).
+read back and verified). If \fBverify_backlog_batch\fR is less than
+\fBverify_backlog\fR then not all blocks will be verified, if
+\fBverify_backlog_batch\fR is larger than \fBverify_backlog\fR, some blocks
+will be verified more than once.
.TP
.B stonewall
Wait for preceeding jobs in the job file to exit before starting this one.
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