== sanity test 127f: OST IO latency histograms by size === 04:57:16 (1780390636)
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, 0.110332 s, 371 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0651471 s, 629 kB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.144075 s, 4.5 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.074698 s, 8.8 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.400521 s, 26.2 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.244926 s, 42.8 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:  1780390646.826558452
start_time:     1780390639.646710319
elapsed_time:   7.179848133
rd_4K: { 128us: 1, 256us: 8, 512us: 1, }
rd_64K: { 256us: 10, }
rd_1024K: { 512us: 6, 1024us: 4, }
wr_4K: { 128us: 1, 256us: 7, 512us: 1, 1024us: 1, }
wr_64K: { 256us: 8, 512us: 1, 1024us: 1, }
wr_1024K: { 512us: 2, 1024us: 6, 2048us: 2, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1