== sanity test 248c: verify whole file read behavior ===== 11:28:57 (1788362937)
llite.lustre-ffff98a002e12800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff98a002e12800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.69765 seconds
llite.lustre-ffff98a002e12800.read_ahead_stats=
snapshot_time                       1788362942.494819116 secs.nsecs
start_time                          1788362938.338964663 secs.nsecs
elapsed_time                        4.155854453 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-ffff98a002e12800.read_ahead_stats=clear
llite.lustre-ffff98a002e12800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.92322 seconds
llite.lustre-ffff98a002e12800.read_ahead_stats=
snapshot_time                       1788362947.410673819 secs.nsecs
start_time                          1788362942.510734678 secs.nsecs
elapsed_time                        4.899939141 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-ffff98a002e12800.max_read_ahead_whole_mb=4