# Memory consumption of a single table entry **URL:** \ **Category:** Zeek\ **Created:** [March 1, 2005, 10:21am UTC](https://community.zeek.org/t/memory-consumption-of-a-single-table-entry/712 "2005-03-01T10:21:58Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Roman\_Hiestand](https://avatars.discourse-cdn.com/v4/letter/r/f0a364/32.png) [@Roman\_Hiestand](https://community.zeek.org/u/Roman_Hiestand)\ **Post date:** [March 1, 2005, 10:21am UTC](https://community.zeek.org/t/memory-consumption-of-a-single-table-entry/712/1 "2005-03-01T10:21:58Z")
hello! I'm using Bro since quite a while and so far I'm quite happy with the tool. Now, I have a questions concerning the memory consumption. I'm running my own Bro script which is given below. I have installed the latest version 0.9a8 of Bro on a Suse Linux. I started Bro, sent 9'844 packets to random IPs. Afterwards, prof.log gives me the following information: 1109672099.923449 Global\_sizes \> 100k: 0K 1109672099.923449 test\_table = 1340K (9844 entries) The tables is, as given below, indexed by destination IP and the entries are of type bool. One entry uses 139 Bytes (= 1340 KB / 9844 entries). I do not understand why one entry uses that much of memory. An IP can be stored in 4 Byte and the table content of type bool in 1 bit. I can imagine that Bro uses memory for the Hash or other information. But this does not require 139 Bytes. Can you please explain me, why Bro uses this much of memory for one table entry and what I can do to avoid this high memory consumption. Cheers, Roman #script test.bro ---
**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, 3:37pm UTC](https://community.zeek.org/t/memory-consumption-of-a-single-table-entry/712/2 "2022-05-06T15:37:24Z")