== sanity test 255b: check 'lfs ladvise -a dontneed' ===== 00:16:08 (1721880968)
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.56077 s, 40.9 MB/s
Total memory: 3820268 KiB
Cache used before read: 73068 KiB
Cache used after read: 175648 KiB
Cache used after dontneed ladvise: 73212 KiB