== sanity test 156: Verification of tunables ============= 15:43:38 (1790970218)
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, 0.0313395 s, 523 kB/s
BEFORE:131093 AFTER:131097
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0415927 s, 394 kB/s
BEFORE:381639 AFTER:381643
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, 0.0422386 s, 291 kB/s
cache hits: before: 28721, after: 28724
Read again; it should be satisfied from the cache.
cache hits:: before: 28724, after: 28727
Turn off the read cache and turn on the write cache
Read again; it should be satisfied from the cache.
cache hits:: before: 28727, after: 28730
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, 0.0155935 s, 788 kB/s
cache hits:: before: 28730, after: 28733
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, 0.0379539 s, 324 kB/s
cache hits:: before: 28733, after: 28733
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, 0.0498037 s, 247 kB/s
cache hits:: before: 28733, after: 28733
Read again; it should be satisfied from the cache.
cache hits:: before: 28733, after: 28736