a3d894000b
Using a realtime clock is a bad idea: it is affected by any kind of time change, which can happen when the administrator modifies the system time, or more simply when a laptop suspends to RAM and then wakes up from sleep. With the current approach of using a realtime clock: - if the system time jumps forward (e.g. when resuming after a suspend-to-RAM), bmon would take 100% CPU and display random graph data extremely fast, until it "catches up" with the new time. - if the system time jumps backwards, bmon would freeze until *time* "catches up" to the point it was before. bmon then (incorrectly) displays a spike in the graph, because lots of packets have been sent/received since the last update. Instead of using gettimeofday(), switch to clock_gettime() with CLOCK_MONOTONIC on systems that support it. OS X does not provide clock_gettime(), so this commit also adds a Mach-specific implementation. This change has been tested on Linux 4.1 with glibc and musl, and on FreeBSD 10.0-RELEASE-p12.
bmon - Bandwidth Monitor
bmon is a monitoring and debugging tool to capture networking related statistics and prepare them visually in a human friendly way. It features various output methods including an interactive curses user interface and a programmable text output for scripting.
Download
Debian/Ubuntu Installation
git clone https://github.com/tgraf/bmon.git
cd bmon
apt-get install build-essential make libconfuse-dev libnl-3-dev libnl-route-3-dev libncurses-dev pkg-config dh-autoreconf
./autogen.sh
./configure
make
make install
bmon
OSX Installation
Install libconfuse
wget https://github.com/martinh/libconfuse/releases/download/v2.8/confuse-2.8.zip
unzip confuse-2.8.zip && cd confuse-2.8
PATH=/usr/local/opt/gettext/bin:$PATH ./configure
make
make install
Install bmon
git clone https://github.com/tgraf/bmon.git
cd bmon
./autogen.sh
./configure
make
make install
bmon
New in 3.9
- Color support
- Add ability to reset statistics from curses UI
- NetBSD compile fix
- Option to enable info display by default
- Additional IPv6 statistics
- Various fixes
Usage
To run bmon in the default curses mode:
bmon
There are many other options available and full help is provided via:
bmon --help
Screenshots
Copyright
Various authors, see git commit log.
Copyright (c) 2001-2016 Thomas Graf tgraf@suug.ch Copyright (c) 2013 Red Hat, Inc.
Please see the LICENSE.BSD and LICENSE.MIT files for additional details.