== sanity test 248c: verify whole file read behavior ===== 06:23:52 (1788690232)
llite.lustre-ffff90c5519c0000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff90c5519c0000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.44183 seconds
llite.lustre-ffff90c5519c0000.read_ahead_stats=
snapshot_time                       1788690241.138154973 secs.nsecs
start_time                          1788690234.119169612 secs.nsecs
elapsed_time                        7.018985361 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-ffff90c5519c0000.read_ahead_stats=clear
llite.lustre-ffff90c5519c0000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.42661 seconds
llite.lustre-ffff90c5519c0000.read_ahead_stats=
snapshot_time                       1788690250.075386224 secs.nsecs
start_time                          1788690241.150972676 secs.nsecs
elapsed_time                        8.924413548 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-ffff90c5519c0000.max_read_ahead_whole_mb=4