== sanity test 127f: OST IO latency histograms by size === 22:05:43 (1777428343)
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, 0.0413064 s, 992 kB/s
10+0 records in
10+0 records out
40960 bytes (41 kB, 40 KiB) copied, 0.0315049 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, 0.069634 s, 9.4 MB/s
10+0 records in
10+0 records out
655360 bytes (655 kB, 640 KiB) copied, 0.0501153 s, 13.1 MB/s
Generating I/O with size 1024K
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.259939 s, 40.3 MB/s
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.168246 s, 62.3 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:  1777428352.111535169
start_time:     1777428345.741733393
elapsed_time:   6.369801776
rd_4K: { 64us: 5, 128us: 5, }
rd_64K: { 64us: 1, 128us: 9, }
rd_1024K: { 256us: 4, 512us: 6, }
wr_4K: { 64us: 3, 128us: 7, }
wr_64K: { 128us: 10, }
wr_1024K: { 256us: 1, 512us: 9, }
osd-ldiskfs.lustre-OST0000.read_cache_enable=1
osd-ldiskfs.lustre-OST0000.writethrough_cache_enable=1