== sanity test 156: Verification of tunables ============= 22:34:14 (1786761254)
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, 0.0220445 s, 743 kB/s
BEFORE:496380 AFTER:496384
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0442516 s, 370 kB/s
BEFORE:10277 AFTER:10281
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, 0.0226672 s, 542 kB/s
cache hits: before: 28719, after: 28722
Read again; it should be satisfied from the cache.
cache hits:: before: 28722, after: 28725
Turn off the read cache and turn on the write cache
Read again; it should be satisfied from the cache.
cache hits:: before: 28725, after: 28728
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, 0.0136313 s, 901 kB/s
cache hits:: before: 28728, after: 28731
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, 0.070586 s, 174 kB/s
cache hits:: before: 28731, after: 28731
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, 0.065796 s, 187 kB/s
cache hits:: before: 28731, after: 28731
Read again; it should be satisfied from the cache.
cache hits:: before: 28731, after: 28734