== sanity test 156: Verification of tunables ============= 12:21:37 (1789316497)
striped dir -i0 -c2 -H crush  /mnt/lustre/d156.sanity-check
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.00839814 s, 2.0 MB/s
BEFORE:10273 AFTER:10277
4+0 records in
4+0 records out
16384 bytes (16 kB, 16 KiB) copied, 0.0229885 s, 713 kB/s
BEFORE:508052 AFTER:508056
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, 0.0113183 s, 1.1 MB/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, 0.00278315 s, 4.4 MB/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, 0.0111205 s, 1.1 MB/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, 0.0128762 s, 954 kB/s
cache hits:: before: 28733, after: 28733
Read again; it should be satisfied from the cache.
cache hits:: before: 28733, after: 28736