- [root@xen ~]# dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync 2>&1 | tail -n 1 && rm -rf iotest
- 1073741824 bytes (1.1 GB) copied, 8.72736 seconds, 123 MB/s
- [root@xen ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync && rm -rf test
- 4096+0 records in
- 4096+0 records out
- 268435456 bytes (268 MB) copied, 6.15613 seconds, 43.6 MB/s
- [root@xen ~]# wget http://cachefly.cachefly.net/100mb.test
- --2012-12-24 08:39:54-- 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'
- 100%[==========================================================================================================>] 104,857,600 10.7M/s in 9.3s
- 2012-12-24 08:40:04 (10.7 MB/s) - `100mb.test' saved [104857600/104857600]
- [root@xen ~]# cat /proc/cpuinfo
- processor : 0
- vendor_id : GenuineIntel
- cpu family : 6
- model : 23
- model name : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
- stepping : 6
- cpu MHz : 2500.074
- cache size : 6144 KB
- physical id : 0
- siblings : 1
- core id : 0
- cpu cores : 1
- fpu : yes
- fpu_exception : yes
- cpuid level : 10
- wp : yes
- flags : fpu de tsc msr pae cx8 apic sep cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni ssse3 cx16 sse4_1 lahf_lm
- bogomips : 6283.71
- clflush size : 64
- cache_alignment : 64
- address sizes : 38 bits physical, 48 bits virtual
- power management:
- processor : 1
- vendor_id : GenuineIntel
- cpu family : 6
- model : 23
- model name : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
- stepping : 6
- cpu MHz : 2500.074
- cache size : 6144 KB
- physical id : 1
- siblings : 1
- core id : 0
- cpu cores : 1
- fpu : yes
- fpu_exception : yes
- cpuid level : 10
- wp : yes
- flags : fpu de tsc msr pae cx8 apic sep cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni ssse3 cx16 sse4_1 lahf_lm
- bogomips : 6283.71
- clflush size : 64
- cache_alignment : 64
- address sizes : 38 bits physical, 48 bits virtual
- power management:
- processor : 2
- vendor_id : GenuineIntel
- cpu family : 6
- model : 23
- model name : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
- stepping : 6
- cpu MHz : 2500.074
- cache size : 6144 KB
- physical id : 2
- siblings : 1
- core id : 0
- cpu cores : 1
- fpu : yes
- fpu_exception : yes
- cpuid level : 10
- wp : yes
- flags : fpu de tsc msr pae cx8 apic sep cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni ssse3 cx16 sse4_1 lahf_lm
- bogomips : 6283.71
- clflush size : 64
- cache_alignment : 64
- address sizes : 38 bits physical, 48 bits virtual
- power management:
- [root@xen ~]#
复制代码 |