== sanity test 127f: OST IO latency histograms by size === 16:37:36 (1777063056)
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, 0.0923471 s, 444 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0589165 s, 695 kB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.126885 s, 5.2 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0723557 s, 9.1 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.383456 s, 27.3 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.233359 s, 44.9 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:  1777063066.418924632
start_time:     1777063059.271509548
elapsed_time:   7.147415084
rd_4K: { 128us: 5, 256us: 5, }
rd_64K: { 128us: 6, 256us: 4, }
rd_1024K: { 512us: 8, 1024us: 2, }
wr_4K: { 128us: 7, 256us: 2, 512us: 1, }
wr_64K: { 128us: 5, 256us: 2, 512us: 3, }
wr_1024K: { 512us: 8, 1024us: 2, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1