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本帖最后由 cccdbmw 于 2013-03-14 19:51 编辑
正式服务器:
time dd if=/dev/zero of=/data/test bs=8k count=3000000
3000000+0 records in
3000000+0 records out
24576000000 bytes (25 GB) copied, 133.107 seconds, 185 MB/s
real 2m14.530s
user 0m0.582s
sys 1m4.662s
time dd if=/data/test of=/dev/null bs=8k
3000000+0 records in
3000000+0 records out
24576000000 bytes (25 GB) copied, 89.1308 seconds, 276 MB/s
real 1m29.147s
user 0m0.444s
sys 0m27.977s
测试服务器
time dd if=/tmp/test of=/dev/null bs=8k
300000+0 records in
300000+0 records out
2457600000 bytes (2.5 GB) copied, 1.83681 seconds, 1.3 GB/s
real 0m1.839s
user 0m0.033s
sys 0m1.804s
time dd if=/tmp/test of=/dev/null bs=8k
300000+0 records in
300000+0 records out
2457600000 bytes (2.5 GB) copied, 1.62677 seconds, 1.5 GB/s
real 0m2.965s
user 0m0.034s
sys 0m1.594s
测试服务器没有1t分区,这是/tmp分区 |
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