# \[JIRA\] (BIT-1133) topic/jsiwek/dns-perf

**URL:** <https://community.zeek.org/t/jira-bit-1133-topic-jsiwek-dns-perf/3002>\
**Category:** Development\
**Tags:** development\
**Created:** [February 14, 2014, 3:50pm UTC](https://community.zeek.org/t/jira-bit-1133-topic-jsiwek-dns-perf/3002 "2014-02-14T15:50:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![robin](https://yyz1.discourse-cdn.com/flex011/user_avatar/community.zeek.org/robin/32/599_2.png) [@robin](https://community.zeek.org/u/robin)\
**Post date:** [February 14, 2014, 3:50pm UTC](https://community.zeek.org/t/jira-bit-1133-topic-jsiwek-dns-perf/3002/1 "2014-02-14T15:50:53Z")

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-O0. I'm using instructions as a proxy for "work"; so far the  
instruction number has turned out to be nicely stable across run on  
the same machine. So I'm not saying that there's a precise 2% impact  
but only that the DNS changes lead to now more work being done, which  
I think warrants understanding given that DNS is just a small of piece  
of everything. If we understand what's going on and deem it fine and  
worth the cost, no problem. I'll do some more measurements and see how  
actual timing looks like for me.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\
**Post date:** [May 6, 2022, 3:41pm UTC](https://community.zeek.org/t/jira-bit-1133-topic-jsiwek-dns-perf/3002/2 "2022-05-06T15:41:35Z")

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