== sanity test 156: Verification of tunables ============= 08:00:17 (1789560017)
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, 0.0285987 s, 573 kB/s
BEFORE:21 AFTER:25
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0446187 s, 367 kB/s
BEFORE:492811 AFTER:492815
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, 0.0499552 s, 246 kB/s
cache hits: before: 28724, after: 28727
Read again; it should be satisfied from the cache.
cache hits:: before: 28727, after: 28730
Turn off the read cache and turn on the write cache
Read again; it should be satisfied from the cache.
cache hits:: before: 28730, after: 28733
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, 0.00746822 s, 1.6 MB/s
cache hits:: before: 28733, after: 28736
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, 0.0177231 s, 693 kB/s
cache hits:: before: 28736, after: 28736
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, 0.0630146 s, 195 kB/s
cache hits:: before: 28736, after: 28736
Read again; it should be satisfied from the cache.
cache hits:: before: 28736, after: 28739