# Bro : an opinion **URL:** \ **Category:** Zeek\ **Created:** [July 7, 2001, 7:18am UTC](https://community.zeek.org/t/bro-an-opinion/170 "2001-07-07T07:18:24Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Vern](https://yyz1.discourse-cdn.com/flex011/user_avatar/community.zeek.org/vern/32/630_2.png) [@Vern](https://community.zeek.org/u/Vern)\ **Post date:** [July 7, 2001, 7:18am UTC](https://community.zeek.org/t/bro-an-opinion/170/1 "2001-07-07T07:18:24Z")
> I know that bro runs on almost all the OSs like > OpenBSD/Linux/Sloaris etc. > > But from your experience, on which OS does bro run/execute > fastest ? i mean the time taken considering the whole system including > bro and libpcap.. > > It is just to get an opinion regarding the matter. > > It will surely depend on the fact that on some OSs libpcap executes > faster and so one but could you give a general observation ... I run it just under FreeBSD. I would expect that it runs \*much\* better on systems that have kernel packet filters that libpcap knows how to take advantage of, which pretty much means BPF systems like \*BSD.     Vern ---
**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, 3:36pm UTC](https://community.zeek.org/t/bro-an-opinion/170/2 "2022-05-06T15:36:21Z")