== sanity test 156: Verification of tunables ============= 00:27:30 (1763357250)
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, 0.00899244 s, 1.8 MB/s
BEFORE:10338 AFTER:10342
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0085765 s, 1.9 MB/s
BEFORE:131090 AFTER:131094
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, 0.0122547 s, 1.0 MB/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, 12 KiB) copied, 0.00278644 s, 4.4 MB/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, 12 KiB) copied, 0.00803749 s, 1.5 MB/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, 12 KiB) copied, 0.00664734 s, 1.8 MB/s
cache hits:: before: 65594, after: 65594
Read again; it should be satisfied from the cache.
cache hits:: before: 65594, after: 65597