== sanity test 156: Verification of tunables ============= 17:58:27 (1746136707) striped dir -i0 -c2 -H crush /mnt/lustre/d156.sanity-check 4+0 records in 4+0 records out 16384 bytes (16 kB) copied, 0.0122145 s, 1.3 MB/s BEFORE:141338 AFTER:141342 4+0 records in 4+0 records out 16384 bytes (16 kB) copied, 0.0128088 s, 1.3 MB/s BEFORE:30 AFTER:34 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, 0.0201717 s, 609 kB/s cache hits: before: 65582, after: 65585 Read again; it should be satisfied from the cache. cache hits:: before: 65585, after: 65588 Turn off the read cache and turn on the write cache Read again; it should be satisfied from the cache. cache hits:: before: 65588, after: 65591 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, 0.0134695 s, 912 kB/s cache hits:: before: 65591, after: 65594 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, 0.0258012 s, 476 kB/s cache hits:: before: 65594, after: 65594 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, 0.0101777 s, 1.2 MB/s cache hits:: before: 65594, after: 65594 Read again; it should be satisfied from the cache. cache hits:: before: 65594, after: 65597