== sanity test 127f: OST IO latency histograms by size === 18:42:55 (1789339375)
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, 0.0461267 s, 888 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0313854 s, 1.3 MB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0735165 s, 8.9 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0490962 s, 13.3 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.239586 s, 43.8 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.144805 s, 72.4 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:  1789339384.870240247
start_time:     1789339378.393931902
elapsed_time:   6.476308345
rd_4K: { 128us: 9, 256us: 1, }
rd_64K: { 128us: 9, 256us: 1, }
rd_1024K: { 512us: 10, }
wr_4K: { 128us: 10, }
wr_64K: { 128us: 9, 256us: 1, }
wr_1024K: { 512us: 10, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1