== sanity test 248c: verify whole file read behavior ===== 11:52:14 (1790783534)
llite.lustre-ffff98e790729800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff98e790729800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.14827 seconds
llite.lustre-ffff98e790729800.read_ahead_stats=
snapshot_time                       1790783541.842196674 secs.nsecs
start_time                          1790783536.050196403 secs.nsecs
elapsed_time                        5.792000271 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-ffff98e790729800.read_ahead_stats=clear
llite.lustre-ffff98e790729800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.1229 seconds
llite.lustre-ffff98e790729800.read_ahead_stats=
snapshot_time                       1790783548.559933187 secs.nsecs
start_time                          1790783541.851388036 secs.nsecs
elapsed_time                        6.708545151 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-ffff98e790729800.max_read_ahead_whole_mb=4