== sanity test 127f: OST IO latency histograms by size === 14:13:17 (1790791997)
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, 0.250771 s, 163 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.163915 s, 250 kB/s
Generating I/O with size 64K
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.408979 s, 1.6 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.292281 s, 2.2 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 1.08534 s, 9.7 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.587397 s, 17.9 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:  1790792013.330780444
start_time:     1790792002.720046007
elapsed_time:   10.610734437
rd_4K: { 256us: 4, 512us: 3, 1024us: 1, 2048us: 2, }
rd_64K: { 256us: 1, 512us: 6, 1024us: 1, 2048us: 2, }
rd_1024K: { 512us: 3, 1024us: 5, 2048us: 2, }
wr_4K: { 256us: 3, 512us: 3, 1024us: 2, 2048us: 2, }
wr_64K: { 256us: 1, 512us: 3, 1024us: 1, 2048us: 4, 4096us: 1, }
wr_1024K: { 1024us: 5, 2048us: 4, 4096us: 1, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1