こっそりと。

QNAP TS-209 Pro II で遊んでみた ・ ZFSの基本的な使い方とZFSとEXT4のベンチマーク比較(主にベンチマーク箇所) を参考に
　　　

[~] # uname -a
Linux TS-269pro 2.6.33.2 #1 SMP Wed Aug 1 02:11:19 CST 2012 x86_64 unknown

[~] # cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 54
model name : Intel(R) Atom(TM) CPU D2700 @ 2.13GHz
stepping : 1
cpu MHz : 2133.173
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant _tsc arch_perfmon pebs bts rep_good nonstop_tsc aperfmperf pni dtes64 monitor ds _cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm arat
bogomips : 4266.34
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 54
model name : Intel(R) Atom(TM) CPU D2700 @ 2.13GHz
stepping : 1
cpu MHz : 2133.173
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant _tsc arch_perfmon pebs bts rep_good nonstop_tsc aperfmperf pni dtes64 monitor ds _cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm arat
bogomips : 4266.01
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 54
model name : Intel(R) Atom(TM) CPU D2700 @ 2.13GHz
stepping : 1
cpu MHz : 2133.173
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant _tsc arch_perfmon pebs bts rep_good nonstop_tsc aperfmperf pni dtes64 monitor ds _cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm arat
bogomips : 4266.03
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 54
model name : Intel(R) Atom(TM) CPU D2700 @ 2.13GHz
stepping : 1
cpu MHz : 2133.173
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant _tsc arch_perfmon pebs bts rep_good nonstop_tsc aperfmperf pni dtes64 monitor ds _cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm arat
bogomips : 4266.02
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:


# cd /share/MD0_DATA/Public
[/share/MD0_DATA/Public] # for i in {1..3}
> do
> time dd if=/dev/zero of=./hoge.img bs=1024 count=1048576 > /dev/null 2>&1
> done

real 0m13.710s
user 0m0.731s
sys 0m9.429s

real 0m12.901s
user 0m0.741s
sys 0m9.799s

real 0m12.802s
user 0m0.690s
sys 0m9.600s


[/share/MD0_DATA/Public] # for i in {1..3}
> do
> time cat ./hoge.img > /dev/null
> done

real 0m9.272s
user 0m0.065s
sys 0m1.322s

real 0m8.664s
user 0m0.092s
sys 0m1.299s

real 0m8.629s
user 0m0.071s
sys 0m1.304s

平均値を計算して、概ね以下の通り
Read 115.6M/s
Write 77.9M/s