Perfs of WD Labs Pi Drive

pi-drive-perfs.md

Perf Tests

Several hosts, WD Labs Pi Drive 250Gb and SSDs
The benchmark uses fio in order to simulate a DB access with several processes and small random chunk being read/writen.

The Hosts systems

Host A: Raspberry Pi Zero W

(current Raspbian)

uname -a
Linux raspi0wd 4.9.17+ #981 Fri Mar 24 14:18:06 GMT 2017 armv6l GNU/Linux

Host B: Orange Pi Pc v1.2

ARMBIAN 5.25 stable Ubuntu 16.04.2 LTS 4.10.0-sun8i

uname -a
Linux orangepipc 4.10.0-sun8i #3 SMP Thu Feb 23 19:57:03 CET 2017 armv7l armv7l armv7l GNU/Linux

Host C: Orange Pi Zero

(Legacy Kernel)
ARMBIAN 5.25 stable Debian GNU/Linux 8 (jessie) 3.4.113-sun8i

uname -a
Linux orangepizero 3.4.113-sun8i #10 SMP PREEMPT Thu Feb 23 19:55:00 CET 2017 armv7l GNU/Linux

Local tests protocol

Pi Drive mounted as /mnt/temp

fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=/mnt/temp/test --bs=4k --iodepth=8 --size=1G --readwrite=randrw --rwmixread=75

Sample output:

test: (groupid=0, jobs=1): err= 0: pid=7089: Mon Mar 27 21:16:00 2017
  read : io=472068KB, bw=449221B/s, iops=109, runt=1076078msec
  write: io=158380KB, bw=150715B/s, iops=36, runt=1076078msec
  cpu          : usr=0.48%, sys=1.67%, ctx=165584, majf=0, minf=16
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=100.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     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=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=118017/w=39595/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=8

Run status group 0 (all jobs):
   READ: io=472068KB, aggrb=438KB/s, minb=438KB/s, maxb=438KB/s, mint=1076078msec, maxt=1076078msec
  WRITE: io=158380KB, aggrb=147KB/s, minb=147KB/s, maxb=147KB/s, mint=1076078msec, maxt=1076078msec

Disk stats (read/write):
  sda: ios=118009/40883, merge=6/223, ticks=6634320/2025830, in_queue=8659860, util=100.00%

All Pi Tests

Local WD Labs Pi Drive on Raspberry Pi Zero W

(bottleneck=drive)
Read 433271B/s - iops=105
Write 146052B/s - iops=35

Local WD Labs Pi Drive on Orange Pi Pc

(bottleneck=drive)
Read 449221B/s - iops=109
Write 150715B/s - iops=36

Local WD Labs Pi Drive on Orange Pi Zero

(bottleneck=drive)
Read 484061B/s - iops=118
Write 161656/s - iops=39

Local Samsung 840 SSD via a USB to SATA adapter on Raspberry Pi Zero W

Read 2714KB/s - iops=678
Write 928229/s - iops=226

Local Samsung 840 SSD via a USB to SATA adapter on Orange Pi Zero

Read 10245KB/s - iops=2561
Write 3421KB/s - iops=855

Local Samsung 840 SSD via a USB to SATA adapter on Orange Pi Pc:

(bottleneck=USB)
Read 3944KB/s - iops=986
Write 1317KB/s - iops=329

Other tests

Local WD RED 3T - Software RAID 1 - Core i7, Debian

(Bottleneck=drive+soft)
Read 732683B/s - iops 178
Write 245553B/s - iops 59

Local Sandisk Ultra SSD on Ubuntu - Dell Precision M4300

Read 20390KB/s - iops 5097
Write 6846KB/s - iops 1711