以下均使用$5方案机器测试,系统为ubuntu 12.04.3 x64
具体参数看命令即可= =
SFO机房:(目前买不到了)
root@xxx:/dev/shm# dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0145575 s, 2.3 GB/s
root@xxx:dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.602141 s, 55.7 MB/s
NY2机房
内存映射的结果很不稳定,全部贴上来供参考吧。
33554432 bytes (34 MB) copied, 0.057651 s, 582 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0277458 s, 1.2 GB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0507823 s, 661 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0373388 s, 899 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0389341 s, 862 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0256757 s, 1.3 GB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0273382 s, 1.2 GB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0384177 s, 873 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0735749 s, 456 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0413351 s, 812 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0616208 s, 545 MB/s
root@NewYorkTEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
磁盘:
root@NewYorkTEST:~# dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 1.02819 s, 32.6 MB/s
AMS1买不到了,不测了。
NY1机房:
root@NY1TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0252742 s, 1.3 GB/s
磁盘
root@NY1TEST:~# dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.316573 s, 106 MB/s (哎呀这个屌)
AMS2 SSH连不上。。大概是买到的机器被墙了。于是改用sfo的再次ssh过去。国内ping测试也是400ms+的。。网络不能忍
同样不太稳定,贴一下
33554432 bytes (34 MB) copied, 0.0426417 s, 787 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0674407 s, 498 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0344091 s, 975 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.030421 s, 1.1 GB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0359137 s, 934 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0501897 s, 669 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0531157 s, 632 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0268672 s, 1.2 GB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0380566 s, 882 MB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.028463 s, 1.2 GB/s
root@AMS2TEST:/dev/shm# cd /dev/shm;dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.0265787 s, 1.3 GB/s
磁盘
root@AMS2TEST:~# dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
512+0 records in
512+0 records out
33554432 bytes (34 MB) copied, 0.474761 s, 70.7 MB/s
总的来说,NY1看起来很不错的样子。以上可能运气成分很大,仅供参考。