== sanity test 248c: verify whole file read behavior ===== 07:19:14 (1786965554)
llite.lustre-ffff961a4397b000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff961a4397b000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.96941 seconds
llite.lustre-ffff961a4397b000.read_ahead_stats=
snapshot_time                       1786965562.562088223 secs.nsecs
start_time                          1786965555.970917195 secs.nsecs
elapsed_time                        6.591171028 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-ffff961a4397b000.read_ahead_stats=clear
llite.lustre-ffff961a4397b000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.62072 seconds
llite.lustre-ffff961a4397b000.read_ahead_stats=
snapshot_time                       1786965571.018430497 secs.nsecs
start_time                          1786965562.578265181 secs.nsecs
elapsed_time                        8.440165316 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-ffff961a4397b000.max_read_ahead_whole_mb=4