Configuration of storage:
IBM V7000 gen2+
10x SSD 4TB
Interface 10GBe (iSCSI)
Dedicated card for compression
Configuration of test VM
2CPU, 4GB RAM
Linux Debian on ESX 6
Datastore mapped to ESX
Better IOPS during read operation and only a little lower on write. CPU usage for compression 30%.
Without compression:
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=3987: Wed Mar 29 07:57:35 2017
read : io=30723MB, bw=139125KB/s, iops=34781 , runt=226126msec
write: io=10237MB, bw=46360KB/s, iops=11589 , runt=226126msec
cpu : usr=9.58%, sys=37.75%, ctx=709816, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7864963/w=2620797/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30723MB, aggrb=139125KB/s, minb=139125KB/s, maxb=139125KB/s, mint=226126msec, maxt=226126msec
WRITE: io=10237MB, aggrb=46359KB/s, minb=46359KB/s, maxb=46359KB/s, mint=226126msec, maxt=226126msec
Disk stats (read/write):
sdb: ios=7856666/2618202, merge=0/45, ticks=10471096/3310356, in_queue=13777900, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3991: Wed Mar 29 08:00:59 2017
read : io=40960MB, bw=206382KB/s, iops=51595 , runt=203230msec
cpu : usr=9.88%, sys=38.44%, ctx=665551, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=206382KB/s, minb=206382KB/s, maxb=206382KB/s, mint=203230msec, maxt=203230msec
Disk stats (read/write):
sdb: ios=10475310/2, merge=0/1, ticks=11981140/0, in_queue=12170624, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3995: Wed Mar 29 08:05:59 2017
write: io=40960MB, bw=139572KB/s, iops=34892 , runt=300512msec
cpu : usr=7.17%, sys=29.45%, ctx=546661, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=139571KB/s, minb=139571KB/s, maxb=139571KB/s, mint=300512msec, maxt=300512msec
Disk stats (read/write):
sdb: ios=0/10480731, merge=0/60, ticks=0/17984528, in_queue=17979712, util=100.00%
With compression:
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=4021: Wed Mar 29 08:54:43 2017
read : io=30719MB, bw=164117KB/s, iops=41029 , runt=191668msec
write: io=10241MB, bw=54715KB/s, iops=13678 , runt=191668msec
cpu : usr=10.62%, sys=45.65%, ctx=419306, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7863971/w=2621789/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30719MB, aggrb=164116KB/s, minb=164116KB/s, maxb=164116KB/s, mint=191668msec, maxt=191668msec
WRITE: io=10241MB, aggrb=54715KB/s, minb=54715KB/s, maxb=54715KB/s, mint=191668msec, maxt=191668msec
Disk stats (read/write):
sdb: ios=7853399/2618338, merge=0/38, ticks=7420120/3239660, in_queue=10970028, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4024: Wed Mar 29 08:56:51 2017
read : io=40960MB, bw=328339KB/s, iops=82084 , runt=127743msec
cpu : usr=13.15%, sys=60.54%, ctx=294145, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=328339KB/s, minb=328339KB/s, maxb=328339KB/s, mint=127743msec, maxt=127743msec
Disk stats (read/write):
sdb: ios=10466773/3, merge=0/1, ticks=6400748/8700, in_queue=6405540, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4028: Wed Mar 29 09:02:27 2017
write: io=40960MB, bw=125056KB/s, iops=31264 , runt=335393msec
cpu : usr=6.91%, sys=31.93%, ctx=491626, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=125056KB/s, minb=125056KB/s, maxb=125056KB/s, mint=335393msec, maxt=335393msec
Thursday 11 May 2017
IBM V7000 performance DRAID5 vs DRAID6 on SSD
Configuration of storage:
IBM V7000 gen2+
10x SSD 4TB
Interface 10GBe (iSCSI)
Configuration of test VM
2CPU, 4GB RAM
Linux Debian on ESX 6
Datastore mapped to ESX
Performance limited by disks, CPU usage under 40% on storage.
DRAID5 (8D + 1P + 1S)
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=3987: Wed Mar 29 07:57:35 2017
read : io=30723MB, bw=139125KB/s, iops=34781 , runt=226126msec
write: io=10237MB, bw=46360KB/s, iops=11589 , runt=226126msec
cpu : usr=9.58%, sys=37.75%, ctx=709816, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7864963/w=2620797/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30723MB, aggrb=139125KB/s, minb=139125KB/s, maxb=139125KB/s, mint=226126msec, maxt=226126msec
WRITE: io=10237MB, aggrb=46359KB/s, minb=46359KB/s, maxb=46359KB/s, mint=226126msec, maxt=226126msec
Disk stats (read/write):
sdb: ios=7856666/2618202, merge=0/45, ticks=10471096/3310356, in_queue=13777900, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3991: Wed Mar 29 08:00:59 2017
read : io=40960MB, bw=206382KB/s, iops=51595 , runt=203230msec
cpu : usr=9.88%, sys=38.44%, ctx=665551, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=206382KB/s, minb=206382KB/s, maxb=206382KB/s, mint=203230msec, maxt=203230msec
Disk stats (read/write):
sdb: ios=10475310/2, merge=0/1, ticks=11981140/0, in_queue=12170624, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3995: Wed Mar 29 08:05:59 2017
write: io=40960MB, bw=139572KB/s, iops=34892 , runt=300512msec
cpu : usr=7.17%, sys=29.45%, ctx=546661, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=139571KB/s, minb=139571KB/s, maxb=139571KB/s, mint=300512msec, maxt=300512msec
Disk stats (read/write):
sdb: ios=0/10480731, merge=0/60, ticks=0/17984528, in_queue=17979712, util=100.00%
DRAID6 (7D + 2P + 1S)
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=4021: Tue Mar 28 19:43:26 2017
read : io=30719MB, bw=127238KB/s, iops=31809 , runt=247222msec
write: io=10241MB, bw=42419KB/s, iops=10604 , runt=247222msec
cpu : usr=9.06%, sys=33.66%, ctx=787004, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7864034/w=2621726/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30719MB, aggrb=127238KB/s, minb=127238KB/s, maxb=127238KB/s, mint=247222msec, maxt=247222msec
WRITE: io=10241MB, aggrb=42418KB/s, minb=42418KB/s, maxb=42418KB/s, mint=247222msec, maxt=247222msec
Disk stats (read/write):
sdb: ios=7862987/2621478, merge=0/49, ticks=11209100/3770780, in_queue=14975764, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4025: Tue Mar 28 19:47:06 2017
read : io=40960MB, bw=190892KB/s, iops=47723 , runt=219721msec
cpu : usr=9.46%, sys=35.56%, ctx=756041, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=190892KB/s, minb=190892KB/s, maxb=190892KB/s, mint=219721msec, maxt=219721msec
Disk stats (read/write):
sdb: ios=10478253/3, merge=0/1, ticks=13149764/169304, in_queue=13315696, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4029: Tue Mar 28 19:53:33 2017
write: io=40960MB, bw=108597KB/s, iops=27149 , runt=386225msec
cpu : usr=5.93%, sys=22.56%, ctx=660059, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=108597KB/s, minb=108597KB/s, maxb=108597KB/s, mint=386225msec, maxt=386225msec
Disk stats (read/write):
sdb: ios=0/10484791, merge=0/83, ticks=0/23609532, in_queue=23605968, util=100.00%
IBM V7000 gen2+
10x SSD 4TB
Interface 10GBe (iSCSI)
Configuration of test VM
2CPU, 4GB RAM
Linux Debian on ESX 6
Datastore mapped to ESX
Performance limited by disks, CPU usage under 40% on storage.
DRAID5 (8D + 1P + 1S)
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=3987: Wed Mar 29 07:57:35 2017
read : io=30723MB, bw=139125KB/s, iops=34781 , runt=226126msec
write: io=10237MB, bw=46360KB/s, iops=11589 , runt=226126msec
cpu : usr=9.58%, sys=37.75%, ctx=709816, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7864963/w=2620797/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30723MB, aggrb=139125KB/s, minb=139125KB/s, maxb=139125KB/s, mint=226126msec, maxt=226126msec
WRITE: io=10237MB, aggrb=46359KB/s, minb=46359KB/s, maxb=46359KB/s, mint=226126msec, maxt=226126msec
Disk stats (read/write):
sdb: ios=7856666/2618202, merge=0/45, ticks=10471096/3310356, in_queue=13777900, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3991: Wed Mar 29 08:00:59 2017
read : io=40960MB, bw=206382KB/s, iops=51595 , runt=203230msec
cpu : usr=9.88%, sys=38.44%, ctx=665551, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=206382KB/s, minb=206382KB/s, maxb=206382KB/s, mint=203230msec, maxt=203230msec
Disk stats (read/write):
sdb: ios=10475310/2, merge=0/1, ticks=11981140/0, in_queue=12170624, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=3995: Wed Mar 29 08:05:59 2017
write: io=40960MB, bw=139572KB/s, iops=34892 , runt=300512msec
cpu : usr=7.17%, sys=29.45%, ctx=546661, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=139571KB/s, minb=139571KB/s, maxb=139571KB/s, mint=300512msec, maxt=300512msec
Disk stats (read/write):
sdb: ios=0/10480731, merge=0/60, ticks=0/17984528, in_queue=17979712, util=100.00%
DRAID6 (7D + 2P + 1S)
test: (g=0): rw=randrw, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 40960MB)
test: (groupid=0, jobs=1): err= 0: pid=4021: Tue Mar 28 19:43:26 2017
read : io=30719MB, bw=127238KB/s, iops=31809 , runt=247222msec
write: io=10241MB, bw=42419KB/s, iops=10604 , runt=247222msec
cpu : usr=9.06%, sys=33.66%, ctx=787004, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=7864034/w=2621726/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=30719MB, aggrb=127238KB/s, minb=127238KB/s, maxb=127238KB/s, mint=247222msec, maxt=247222msec
WRITE: io=10241MB, aggrb=42418KB/s, minb=42418KB/s, maxb=42418KB/s, mint=247222msec, maxt=247222msec
Disk stats (read/write):
sdb: ios=7862987/2621478, merge=0/49, ticks=11209100/3770780, in_queue=14975764, util=100.00%
test read 100%
test: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4025: Tue Mar 28 19:47:06 2017
read : io=40960MB, bw=190892KB/s, iops=47723 , runt=219721msec
cpu : usr=9.46%, sys=35.56%, ctx=756041, majf=0, minf=68
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=10485760/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=40960MB, aggrb=190892KB/s, minb=190892KB/s, maxb=190892KB/s, mint=219721msec, maxt=219721msec
Disk stats (read/write):
sdb: ios=10478253/3, merge=0/1, ticks=13149764/169304, in_queue=13315696, util=100.00%
test write 100%
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=64
fio-2.0.9
Starting 1 process
test: (groupid=0, jobs=1): err= 0: pid=4029: Tue Mar 28 19:53:33 2017
write: io=40960MB, bw=108597KB/s, iops=27149 , runt=386225msec
cpu : usr=5.93%, sys=22.56%, ctx=660059, majf=0, minf=4
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=0/w=10485760/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=40960MB, aggrb=108597KB/s, minb=108597KB/s, maxb=108597KB/s, mint=386225msec, maxt=386225msec
Disk stats (read/write):
sdb: ios=0/10484791, merge=0/83, ticks=0/23609532, in_queue=23605968, util=100.00%
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