---
name: "tracetop"
section: "1"
platform: "linux"
package: "libtrace-tools"
version: "3.0.22-0.2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tracetop"
---

# tracetop(1)

show top flows

## NAME

tracetop - show top flows

## SYNOPSIS

**tracetop** \[ **-f** bpf \| **--filter=**bpf\] \[ **-s** snaplen \| **--snaplen=**snaplen\] \[ **-p** promisc \| **--promisc=**promisc\] \[ **--bits-per-sec \]** **\[ --percent \]** **\[ --wide \| -w \]** **\[ -i** interval \| **--interval=**interval\] \[ **-h** \| **--help**\] \[ **-H** \| **--libtrace-help**\] inputuri ...

## DESCRIPTION

tracetop shows the top 'n' flows every second

- **-f** bpf filter

  Count only packets that match tcpdump style bpf filter

- **-i** interval

  Wait interval seconds between updates.  (default 2).

- **--wide**

  **Expand the display to be able to fit IPv6 addresses. Use this to ensure the** **formatting lines up in the presence of IPv6 traffic.**

- **--percent**

  Display flow bytes and packets as a percentage of total traffic

- **--bits-per-second**

  Display flow bandwidth as the number of bits per second.

## LINKS

More details about tracetop (and libtrace) can be found at http://www.wand.net.nz/trac/libtrace/wiki/UserDocumentation

## SEE ALSO

libtrace(3), [tracemerge(1)](/tracemerge/1.md), [tracefilter(1)](/tracefilter/1.md), [traceconvert(1)](/traceconvert/1.md), [tracesplit\_dir(1)](/tracesplit_dir/1.md), [tracereport(1)](/tracereport/1.md), [tracertstats(1)](/tracertstats/1.md), [tracestats(1)](/tracestats/1.md), [tracepktdump(1)](/tracepktdump/1.md), [traceanon(1)](/traceanon/1.md), [tracesummary(1)](/tracesummary/1.md), [tracereplay(1)](/tracereplay/1.md), [tracediff(1)](/tracediff/1.md), [traceends(1)](/traceends/1.md), [tracetopends(1)](/tracetopends/1.md)

## AUTHORS

Perry Lorier \<perry@cs.waikato.ac.nz\>