== sanity test 248c: verify whole file read behavior ===== 01:31:21 (1788586281)
llite.lustre-ffff8aae877e5000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8aae877e5000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.01993 seconds
llite.lustre-ffff8aae877e5000.read_ahead_stats=
snapshot_time                       1788586290.478433681 secs.nsecs
start_time                          1788586283.668668409 secs.nsecs
elapsed_time                        6.809765272 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-ffff8aae877e5000.read_ahead_stats=clear
llite.lustre-ffff8aae877e5000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.6417 seconds
llite.lustre-ffff8aae877e5000.read_ahead_stats=
snapshot_time                       1788586299.207361851 secs.nsecs
start_time                          1788586290.511662351 secs.nsecs
elapsed_time                        8.695699500 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-ffff8aae877e5000.max_read_ahead_whole_mb=4