== sanity test 248c: verify whole file read behavior ===== 08:39:18 (1790944758)
llite.lustre-ffff922d09288000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff922d09288000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.59201 seconds
llite.lustre-ffff922d09288000.read_ahead_stats=
snapshot_time                       1790944767.450425498 secs.nsecs
start_time                          1790944760.367692897 secs.nsecs
elapsed_time                        7.082732601 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-ffff922d09288000.read_ahead_stats=clear
llite.lustre-ffff922d09288000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.06937 seconds
llite.lustre-ffff922d09288000.read_ahead_stats=
snapshot_time                       1790944776.696217955 secs.nsecs
start_time                          1790944767.467440051 secs.nsecs
elapsed_time                        9.228777904 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-ffff922d09288000.max_read_ahead_whole_mb=4