== sanity test 127f: OST IO latency histograms by size === 12:34:13 (1786120453)
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, 0.0827485 s, 495 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0511657 s, 801 kB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.129377 s, 5.1 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0815216 s, 8.0 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.368999 s, 28.4 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.242681 s, 43.2 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:  1786120463.999097923
start_time:     1786120456.933752737
elapsed_time:   7.065345186
rd_4K: { 128us: 6, 256us: 4, }
rd_64K: { 128us: 1, 256us: 9, }
rd_1024K: { 512us: 4, 1024us: 5, 2048us: 1, }
wr_4K: { 128us: 6, 256us: 4, }
wr_64K: { 128us: 2, 256us: 6, 512us: 2, }
wr_1024K: { 512us: 9, 1024us: 1, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1