佳音的博客

2010/02/24

fuse-hdfs 简单测试

Filed under: Uncategorized — 佳音 @ 12:01 下午
这东西实验性还是很强 在编译过程中 出现很多错误,
最后一次忽略所有错误继续 编译 才编译过去,
time dd if=/mnt/hdfs/user/root/with_country.tsv/part-00071  of=/tmp/a.txt bs=8k count=30000
3603+1 records in
3603+1 records out
29519802 bytes (30 MB) copied, 2.98445 s, 9.9 MB/s
real 0m3.015s
user 0m0.008s
sys 0m0.104s
sudo time dd if=/dev/zero of=/mnt/hdfs/test.txt bs=8k count=3000
3000+0 records in
3000+0 records out
24576000 bytes (25 MB) copied, 2.98638 s, 8.2 MB/s
0.00user 0.08system 0:03.01elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+261minor)pagefaults 0swaps
~$ sudo time dd if=/dev/zero of=/mnt/hdfs/test.txt bs=8k count=30000
30000+0 records in
30000+0 records out
245760000 bytes (246 MB) copied, 30.1176 s, 8.2 MB/s
0.03user 0.78system 0:30.19elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+259minor)pagefaults 0swaps

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