== sanity test 255b: check 'lfs ladvise -a dontneed' ===== 00:22:14 (1780978934)
100+0 records in
100+0 records out
104857600 bytes (105 MB, 100 MiB) copied, 3.36367 s, 31.2 MB/s
Total memory: 3781768 KiB
Cache used before read: 99788 KiB
Cache used after read: 202404 KiB
Cache used after dontneed ladvise: 100004 KiB