== sanity test 156: Verification of tunables ============= 23:51:20 (1787716280)
striped dir -i0 -c2 -H crush2  /mnt/lustre/d156.sanity-check
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0245571 s, 667 kB/s
BEFORE:515823 AFTER:515827
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0576276 s, 284 kB/s
BEFORE:25 AFTER:29
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, 0.0417149 s, 295 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, 0.02125 s, 578 kB/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, 0.0726038 s, 169 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, 0.0293104 s, 419 kB/s
cache hits:: before: 28730, after: 28730
Read again; it should be satisfied from the cache.
cache hits:: before: 28730, after: 28733