Add option for specifically setting buffer contents
Fio can use zeroes, slightly scrambled data, full random data,
or specifically compressible data. With this option, the user
can now fully control the pattern written, similarly to how
verify_pattern works for verify=meta.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/io_u.c b/io_u.c
index ea6c251..518d884 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1770,7 +1770,9 @@
void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
unsigned int max_bs)
{
- if (!td->o.zero_buffers) {
+ if (td->o.buffer_pattern_bytes)
+ fill_buffer_pattern(td, buf, max_bs);
+ else if (!td->o.zero_buffers) {
unsigned int perc = td->o.compress_percentage;
if (perc) {