All the packages below are available in all clouboot images despite they are KVM or XEN based.
Here is the list of the useful utilities:
| Tool |
Description |
Webpage |
| htop |
Enhanced top stats |
http://htop.sourceforge.net/ |
| iotop |
Monitoring I/O |
http://guichaz.free.fr/iotop/ |
| dstat |
Versatile resource statistics tool |
http://dag.wiee.rs/home-made/dstat/ |
| blktrace.x86_64 |
Utilities for performing block layer IO tracing in the linux kernel, require debug file system to be mounted, can be done manually - see below |
Kernel / http://git.kernel.org/cgit/linux/kernel/git/axboe/blktrace.git/?h=origin |
| perf |
profiler tool for Linux 2.6.x (not available on CentOS 5 aka XEN) |
https://perf.wiki.kernel.org/index.php/Main_Page |
| iftop |
monitor tool that produces a frequently-updated list of network connections |
http://www.ex-parrot.com/pdw/iftop/ |
| fio |
flexible I/O tester |
https://fio.readthedocs.io |
| iperf |
perform network throughput tests |
https://iperf.fr |
| tcpdump |
dump traffic on a network |
https://www.tcpdump.org |
| ioping |
simple disk I/O latency monitoring tool |
https://github.com/koct9i/ioping |
| iostat |
Report Central Processing Unit (CPU) statistics and input/output statistics for devices, partitions and network filesystems (NFS). |
https://github.com/sysstat/sysstat |
| sar |
collect, report, or save system activity information. |
https://en.wikipedia.org/wiki/Sar_(Unix) |
| vmstat |
report virtual memory statistics |
https://en.wikipedia.org/wiki/Vmstat |
| omping |
test IP multicast |
https://github.com/jfriesse/omping |
| stress-ng |
tool to load and stress a computer system |
https://github.com/ColinIanKing/stress-ng |
| iptraf |
IPTraf is a console-based network statistics utility for Linux. |
http://iptraf.seul.org/ |
blktrace.x86_64:
mount -t debugfs debugfs /sys/kernel/debug
blktrace requires debugfs to be mounted on the directory /sys/kernel/debug:
# blktrace -d /dev/sda -w 3
/sys/kernel/debug does not appear to be a debug filesystem