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手贱又把40刀按照它的玩了一遍，除了ping
[root@mfacdpft ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.8164 seconds, 55.7 MB/s
[root@mfacdpft ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.17897 seconds, 123 MB/s
[root@mfacdpft ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.15662 seconds, 124 MB/s
[root@mfacdpft ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.08399 seconds, 129 MB/s
[root@mfacdpft ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
stepping : 9
cpu MHz : 3058.213
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 4
apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc arat pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips : 6800.45
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: [8]
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
stepping : 9
cpu MHz : 3058.213
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 1
cpu cores : 4
apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc arat pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips : 6800.07
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: [8]
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
stepping : 9
cpu MHz : 3058.213
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 2
cpu cores : 4
apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 13
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc arat pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips : 6799.98
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: [8]
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
stepping : 9
cpu MHz : 3058.213
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 3
cpu cores : 4
apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 13
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc arat pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips : 6800.00
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: [8]
[root@mfacdpft ~]# wget http://cachefly.cachefly.net/100mb.test
--2013-05-26 00:25:58-- http://cachefly.cachefly.net/100mb.test
Resolving cachefly.cachefly.net... 205.234.175.175
Connecting to cachefly.cachefly.net|205.234.175.175|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test.2'
100%[======================================>] 104,857,600 39.4M/s in 2.5s
2013-05-26 00:26:01 (39.4 MB/s) - `100mb.test.2' saved [104857600/104857600]
[root@mfacdpft ~]# wget http://173.252.250.214/100mb.test
--2013-05-26 00:26:59-- http://173.252.250.214/100mb.test
Connecting to 173.252.250.214:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test.3'
100%[======================================>] 104,857,600 8.19M/s in 11s
2013-05-26 00:27:10 (9.44 MB/s) - `100mb.test.3' saved [104857600/104857600]
[root@mfacdpft ~]# wget http://173.252.250.214/100mb.test
--2013-05-26 00:27:29-- http://173.252.250.214/100mb.test
Connecting to 173.252.250.214:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test.4'
100%[======================================>] 104,857,600 11.2M/s in 11s
2013-05-26 00:27:40 (9.10 MB/s) - `100mb.test.4' saved [104857600/104857600]
[root@mfacdpft ~]# wget http://173.252.250.214/100mb.test
--2013-05-26 00:27:53-- http://173.252.250.214/100mb.test
Connecting to 173.252.250.214:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test.5'
100%[======================================>] 104,857,600 8.31M/s in 10s
2013-05-26 00:28:04 (9.56 MB/s) - `100mb.test.5' saved [104857600/104857600]
[root@mfacdpft ~]# wget http://173.252.250.214/100mb.test
--2013-05-26 00:28:19-- http://173.252.250.214/100mb.test
Connecting to 173.252.250.214:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test.6'
100%[======================================>] 104,857,600 8.18M/s in 11s
2013-05-26 00:28:30 (9.49 MB/s) - `100mb.test.6' saved [104857600/104857600]
[root@mfacdpft ~]# free -m
total used free shared buffers cached
Mem: 4096 92 4003 0 0 0
-/+ buffers/cache: 92 4003
Swap: 0 0 0
[root@mfacdpft ~]# dd if=/dev/zero of=test bs=64k count=4k conv=fdatasync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 0.602945 seconds, 445 MB/s
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发表于 2013-5-26 00:25:33