== sanity test 156: Verification of tunables ============= 06:21:39 (1721384499)
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d156.sanity-check
4+0 records in
4+0 records out
16384 bytes (16 kB) copied, 0.00259908 s, 6.3 MB/s
BEFORE:14 AFTER:18
4+0 records in
4+0 records out
16384 bytes (16 kB) copied, 0.00316234 s, 5.2 MB/s
BEFORE:141349 AFTER:141353
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) copied, 0.00299246 s, 4.1 MB/s
cache hits: before: 65581, after: 65584
Read again; it should be satisfied from the cache.
cache hits:: before: 65584, after: 65587
Turn off the read cache and turn on the write cache
Read again; it should be satisfied from the cache.
cache hits:: before: 65587, after: 65590
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) copied, 0.00081534 s, 15.1 MB/s
cache hits:: before: 65590, after: 65593
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) copied, 0.00449519 s, 2.7 MB/s
cache hits:: before: 65593, after: 65593
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) copied, 0.00463534 s, 2.7 MB/s
cache hits:: before: 65593, after: 65593
Read again; it should be satisfied from the cache.
cache hits:: before: 65593, after: 65596