trouble

[cq wei]

hello,i am a linux system administrator ,and i have problem now,the nginx as
picture server,the bandwidth
is higher than apache in the same condition.For example,established
connections is 3000,apache's bandwidth is about 4MB,but the nginx is about
7MB,i am sure the two servers  run the same services,and in the same
datacenter .what should i do,maybe i should modify config files,but i don't
know what should i do.Could you help me,thanks!
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