# Time tracing in nginx

**URL:** <https://www.ruby-forum.com/t/time-tracing-in-nginx/206421>\
**Category:** NGINX\
**Created:** [April 30, 2011, 7:51pm UTC](https://www.ruby-forum.com/t/time-tracing-in-nginx/206421 "2011-04-30T19:51:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [April 30, 2011, 7:51pm UTC](https://www.ruby-forum.com/t/time-tracing-in-nginx/206421/1 "2011-04-30T19:51:58Z")

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Hi  
I get some incoming requests that take longer to complete than others  
for no particular reason that I can see (goes from 0.03s to above 1s for  
the exact same file from the exact same host)  
Is there any way to add debug/tracing log so I can see which part of my  
config this time gets lost on?  
The server does over 100 requests/sec and I’m finding it very difficult  
to trace which part is taking long to complete sometimes.

Many thanks