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/thread_options.h b/thread_options.h
index e2c6e88..f40a992 100644
--- a/thread_options.h
+++ b/thread_options.h
@@ -170,6 +170,8 @@
unsigned int zero_buffers;
unsigned int refill_buffers;
unsigned int scramble_buffers;
+ char buffer_pattern[MAX_PATTERN_SIZE];
+ unsigned int buffer_pattern_bytes;
unsigned int compress_percentage;
unsigned int compress_chunk;
unsigned int time_based;
@@ -381,6 +383,8 @@
uint32_t zero_buffers;
uint32_t refill_buffers;
uint32_t scramble_buffers;
+ uint8_t buffer_pattern[MAX_PATTERN_SIZE];
+ uint32_t buffer_pattern_bytes;
unsigned int compress_percentage;
unsigned int compress_chunk;
uint32_t time_based;