== sanity test 248c: verify whole file read behavior ===== 13:39:44 (1736793584)
llite.lustre-ffff88012a678000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff88012a678000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 31.1 seconds
llite.lustre-ffff88012a678000.read_ahead_stats=
snapshot_time             1736793587.037911831 secs.nsecs
start_time                1736793584.722769888 secs.nsecs
elapsed_time              2.315141943 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-ffff88012a678000.read_ahead_stats=clear
llite.lustre-ffff88012a678000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 29.2 seconds
llite.lustre-ffff88012a678000.read_ahead_stats=
snapshot_time             1736793589.809118024 secs.nsecs
start_time                1736793587.042015026 secs.nsecs
elapsed_time              2.767102998 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-ffff88012a678000.max_read_ahead_whole_mb=4