== sanity test 156: Verification of tunables ============= 10:26:48 (1787408808)
striped dir -i0 -c2 -H crush  /mnt/lustre/d156.sanity-check
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0340042 s, 482 kB/s
BEFORE:141410 AFTER:141414
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0367134 s, 446 kB/s
BEFORE:18 AFTER:22
Turn on read and write cache
Write data and read it back.
Read should be satisfied from the cache.
3+0 records in
3+0 records out
12288 bytes (12 kB, 12 KiB) copied, 0.0369894 s, 332 kB/s
cache hits: before: 28718, after: 28721
Read again; it should be satisfied from the cache.
cache hits:: before: 28721, after: 28724
Turn off the read cache and turn on the write cache
Read again; it should be satisfied from the cache.
cache hits:: before: 28724, after: 28727
Write data and read it back.
Read should be satisfied from the cache.
3+0 records in
3+0 records out
12288 bytes (12 kB, 12 KiB) copied, 0.00517067 s, 2.4 MB/s
cache hits:: before: 28727, after: 28730
Turn off read and write cache
Write data and read it back
It should not be satisfied from the cache.
3+0 records in
3+0 records out
12288 bytes (12 kB, 12 KiB) copied, 0.0321121 s, 383 kB/s
cache hits:: before: 28730, after: 28730
Turn on the read cache and turn off the write cache
Write data and read it back
It should not be satisfied from the cache.
3+0 records in
3+0 records out
12288 bytes (12 kB, 12 KiB) copied, 0.0208415 s, 590 kB/s
cache hits:: before: 28730, after: 28730
Read again; it should be satisfied from the cache.
cache hits:: before: 28730, after: 28733