From: Tomohiro Kusumi <tkusumi@xxxxxxxxxx>
Signed-off-by: Tomohiro Kusumi <tkusumi@xxxxxxxxxx>
---
HOWTO | 4 +++-
init.c | 6 +++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/HOWTO b/HOWTO
index 018800a..af6cd71 100644
--- a/HOWTO
+++ b/HOWTO
@@ -1426,7 +1426,9 @@ Buffers and memory
.. option:: invalidate=bool
Invalidate the buffer/page cache parts for this file prior to starting
- I/O. Defaults to true.
+ I/O if the platform and file type support it. Defaults to true.
+ This will be ignored if :option:`pre_read` is also specified for the
+ same job.
.. option:: sync=bool
diff --git a/init.c b/init.c
index 5353890..18538de 100644
--- a/init.c
+++ b/init.c
@@ -764,7 +764,11 @@ static int fixup_options(struct thread_data *td)
}
if (o->pre_read) {
- o->invalidate_cache = 0;
+ if (o->invalidate_cache) {
+ log_info("fio: ignore invalidate option for %s\n",
+ o->name);
+ o->invalidate_cache = 0;
+ }
if (td_ioengine_flagged(td, FIO_PIPEIO)) {
log_info("fio: cannot pre-read files with an IO engine"
" that isn't seekable. Pre-read disabled.\n");
--
2.9.3
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