== sanity test 127f: OST IO latency histograms by size === 22:51:27 (1773111087)
osd-ldiskfs.lustre-OST0000.read_cache_enable=0
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=0
osd-ldiskfs.lustre-OST0000.io_latency_stats=clear
osd-ldiskfs.lustre-OST0000.stats=clear
osd-ldiskfs.lustre-OST0001.stats=clear
Generating I/O with size 4K
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0622775 s, 658 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0472207 s, 867 kB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.116272 s, 5.6 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0703742 s, 9.3 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.373438 s, 28.1 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.220387 s, 47.6 MB/s
osd-*.lustre-OST0000.io_latency_stats stats after I/O:
osd-ldiskfs.lustre-OST0000.io_latency_stats=
io_latency_by_size:
snapshot_time:  1773111099.135057988
start_time:     1773111092.226829607
elapsed_time:   6.908228381
rd_4K: { 128us: 9, 256us: 1, }
rd_64K: { 128us: 4, 256us: 6, }
rd_1024K: { 512us: 5, 1024us: 5, }
wr_4K: { 128us: 9, 256us: 1, }
wr_64K: { 256us: 10, }
wr_1024K: { 512us: 6, 1024us: 4, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1