== sanity test 248c: verify whole file read behavior ===== 11:03:15 (1755097395)
llite.lustre-ffff8e75d981d000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff8e75d981d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.03179 seconds
llite.lustre-ffff8e75d981d000.read_ahead_stats=
snapshot_time             1755097399.941163772 secs.nsecs
start_time                1755097395.737978600 secs.nsecs
elapsed_time              4.203185172 secs.nsecs
hits                      16382 samples [pages]
misses                    2 samples [pages]
zero_size_window          1 samples [pages]
failed_to_fast_read       3 samples [pages]
readahead_pages           1 samples [pages] 16382 16382 16382
llite.lustre-ffff8e75d981d000.read_ahead_stats=clear
llite.lustre-ffff8e75d981d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.64769 seconds
llite.lustre-ffff8e75d981d000.read_ahead_stats=
snapshot_time             1755097404.128975530 secs.nsecs
start_time                1755097399.946464309 secs.nsecs
elapsed_time              4.182511221 secs.nsecs
hits                      16382 samples [pages]
misses                    2 samples [pages]
zero_size_window          1 samples [pages]
failed_to_fast_read       3 samples [pages]
readahead_pages           1 samples [pages] 16382 16382 16382
Test passed on attempt 0
llite.lustre-ffff8e75d981d000.max_read_ahead_whole_mb=4