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Tuesday, September 27, 2016

Some Linux tools

The list below is a collection of Linux tool i'm using for performance analysis
each command and tool syntax can be retrieved via "man COMMAND"

Process statistics:
/sys filesystem - documentation is in the kernel source/Documenation
/debugfs filesystems - documentation is in the kernel source/Documenation
  sar - Collect, report, or save system activity information.
  sadc - System activity data collector.
  sa1 - Collect and store binary data in the system activity daily data file.
  sa2 - Write a daily report in the /var/log/sysstat directory.
  sadf - Display data collected by sar in multiple formats.
  isag - Interactive System Activity Grapher
  mpstat - Report processors related statistics.
  vmstat - Report virtual memory statistics
  dstat - versatile tool for generating system resource statistics
  pidstat - Report statistics for Linux tasks.
  top - display Linux processes
  htop - interactive process viewer
  proc - process information pseudo-filesystem
  ps - report a snapshot of the current processes.
  pstree - display a tree of processes
  pgrep, pkill - look up or signal processes based on name and other attributes
  killall - kill processes by name
  killall5 - send a signal to all processes.
  kill - send a signal to a process
  nice - run a program with modified scheduling priority
  renice - alter priority of running processes
  snice, skill - send a signal or report process status
  atop - AT Computing's System & Process Monitor
  atopsar - AT Computing's System Activity Report (atop related)
  saidar - a curses-based tool for viewing system statistics
  nmon - systems administrator, tuner, benchmark tool
  nproc - show number of processors

How to get os version:
lsb_release - print distribution-specific information
uname - print system information (and kernel version)
unity - wrapper for starting the unity shell and handling fallback

free - Display amount of free and used memory in the system
smem - Report memory usage with shared memory divided proportionally.

shared libraries:
sprof - read and display shared object profiling data

uptime - Tell how long the system has been running.

locking and deadlocks:
mutrace - traces lock contention has no manual pages

disk tools:
  df - report file system disk space usage
  du - estimate file space usage
  smartctl - Control and Monitor Utility for SMART Disks
  GSmartControl - Hard disk drive health inspection tool
  hddtemp - Utility to monitor hard drive temperature
  swapon, swapoff - enable/disable devices and files for paging and swapping
  fdisk - manipulate disk partition table
  cfdisk - display or manipulate a disk partition table
  sfdisk - partition table manipulator for Linux
  partx - tell the Linux kernel about the presence and numbering of on-disk partitions
  addpart - a simple wrapper around the "add partition" ioctl
  delpart - simple wrapper around the "del partition" ioctl
  partprobe - inform the OS of partition table changes
  GNU Parted - a partition manipulation program
  blkid - locate/print block device attributes
  findfs - find a filesystem by label or UUID
  wipefs - wipe a signature from a device

io tools:
  iostat - Report Central Processing Unit (CPU) statistics and input/output statistics for devices and partitions.
  iotop - simple top-like I/O monitor
  ionice - set or get process I/O scheduling class and priority
  hdparm - get/set SATA/IDE device parameters
  sdparm - access SCSI modes pages; read VPD pages; send simple SCSI commands.
  lsscsi - list SCSI devices (or hosts) and their attributes
  blktool - Display or change block device settings
  blktrace - generate traces of the i/o traffic on block devices
  btrace - perform live tracing for block devices
  blkiomon - monitor block device I/O based o blktrace data
  blkrawverify - verifies an output file produced by blkparse
  verify_blkparse - verifies an output file produced by blkparse
  blkparse - produce formatted output of event streams of block devices
  btt - analyse block i/o traces produces by blktrace
  bno_plot - generate interactive 3D plot of IO blocks and sizes
  btreplay - recreate IO loads recorded by blktrace
  btrecord - recreate IO loads recorded by blktrace
  ioreplay - IO traces replayer
  ioprofiler - same package as ioreplay (ioapps).
does not have a manual page.
graphical viewer for io logs
/proc/scsi/scsi - /proc filesystem area where you can find scsi info

network filesystems:
  nfsiostat - Emulate iostat for NFS mount points using /proc/self/mountstats
  cifsiostat - Report CIFS statistics.
  mountstats - Displays NFS client per-mount statistics
  nfsstat - list NFS statistics
in order to remount every mount point in /etc/fstab type: mount -a
Force unmount : mount -l /mount/point

  taskset - retrieve or set a process's CPU affinity
  cpulimit - limits the CPU usage of a process
  schedtool - query and set CPU scheduling parameters
schedtop - scheduler statistics visualization tool
doesn't have a package in ubuntu yet
  sensors - print sensors information
  cpuid - Dump CPUID information for each CPU

process ids:
  pidof - find the process ID of a running program.
  strace - trace system calls and signals
  ltrace - A library call tracer
  sotruss - trace shared library calls through PLT
  pstack - print a stack trace of running processes

  xtrace - trace communication between X11 client and server

used files:
  fuser - identify processes using files or sockets
  lsof - list open files

  valgrind - a suite of tools for debugging and profiling programs

  gprof - display call graph profile data
  valgrind - a suite of tools for debugging and profiling programs
  google-pprof - manual page for google-pprof (part of gperftools)

core dumps:
  CGDB - curses based frontend to GDB
  eclipse - extensible tool platform and Java IDE
  xxgdb - X window system interface to the gdb debugger.
  qtcreator - Integrated Development Environment for Qt
  gdb - The GNU Debugger
gdbtui - does not have a manual page of its own
comes from the same package as gdb  (gdb)
  gcore - Generate a core file of a running program
  resolve_stack_dump - resolve numeric stack trace dump to symbols

  pahole - Shows and manipulates data structure layout.

  crash - Analyze Linux crash dump data or a live system
  slabtop - display kernel slab cache information in real time
  kerneltop - shows kernel function usage in an interactive style like 'top'
  kexec - directly boot into a new kernel
  sysctl - configure kernel parameters at runtime
  getconf - Query system configuration variables
  arch - print machine hardware name (same as uname -m)

  lsmod - Show the status of modules in the Linux Kernel
  modinfo - Show information about a Linux Kernel module
  rmmod - Simple program to remove a module from the Linux Kernel
  insmod - Simple program to insert a module into the Linux Kernel
  modprobe - Add and remove modules from the Linux Kernel
  depmod - Generate modules.dep and map files.

  hostname - show or set the system's host name
  domainname - show or set the system's NIS/YP domain name
  ypdomainname - show or set the system's NIS/YP domain name
  nisdomainname - show or set the system's NIS/YP domain name
  dnsdomainname - show the system's DNS domain name
  ss - another utility to investigate sockets
  ping, ping6 - send ICMP ECHO_REQUEST to network hosts
  traceroute6 - traces path to a network host
  traceroute - print the route packets trace to network host
  itrace - similar to traceroute, yet uses ICMP echo
  jnettop - View hosts/ports taking up the most network traffic
  iftop - display bandwidth usage on an interface by host
  iptraf - Interactive Colorful IP LAN Monitor
  ngrep - network grep
  tcpdump - dump traffic on a network
  tshark - Dump and analyze network traffic
  wireshark - Interactively dump and analyze network traffic
  dumpcap - Dump network traffic
  rawshark - Dump and analyze raw pcap data
  editcap - Edit and/or translate the format of capture files
  mergecap - Merges two or more capture files into one
  text2pcap - Generate a capture file from an ASCII hexdump of packets
  ethtool - query or control network driver and hardware settings
  netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
  nc — arbitrary TCP and UDP connections and listens
  route - show / manipulate the IP routing table
  ip - show / manipulate routing, devices, policy routing and tunnels
  ifconfig - configure a network interface
  ifup - bring a network interface up
  ifdown - take a network interface down
  ifquery - parse interface configuration
  iwconfig - configure a wireless network interface
  iwlist - Get more detailed wireless information from a wireless interface
  wavemon - a wireless network monitor
  telnet — user interface to the TELNET protocol
  vnStat - a console-based network traffic monitor
  vnStati - png image output support for vnStat
  netperf - a network performance benchmark
  iperf - perform network throughput tests
  nmcli - command‐line tool for controlling NetworkManager

Network firewalls:
  iptables/ip6tables — administration tool for IPv4/IPv6 packet filtering and NAT
  iptables-restore — Restore IP Tables
  ip6tables-restore — Restore IPv6 Tables
  iptables-save — dump iptables rules to stdout
  ip6tables-save — dump iptables rules to stdout
  iptables-apply - a safer way to update iptables remotely
  ufw - program for managing a netfilter firewall
  ufw-framework - using the ufw framework
  shorewall - Administration tool for Shoreline Firewall (Shorewall)

Network bridges:
  bridge - show / manipulate bridge addresses and devices
  brctl - ethernet bridge administration

java debugging:
  jstack - Prints Java thread stack traces for a Java process, core file, or remote debug server. This command is experimental and unsupported.
  jdb - Finds and fixes bugs in Java platform programs.
jlint - java source code lint
does not have a manual page
does have a package in ubuntu (jlint, jlint-doc)

programming tracing:
  mtrace - interpret the malloc trace log
  memusage - profile memory usage of a program
  dmalloc - program used to set the environment for debugging using the dmalloc debugging library.
  efence - Electric Fence Malloc Debugger

power management:
  powertop - a power consumption and power management diagnosis tool.
  turbostat - Report processor frequency and idle statistics
  upower - UPower command line tool

General tools (not intended for just one specific utility):
  dtrace - Dtrace compatibile user application static probe generation tool.
  stap-prep - prepare system for systemtap use
  staprun - systemtap runtime
  stap - systemtap script translator/driver
  perf - Performance analysis tools for Linux
  perf-stat - Run a command and gather performance counter statistics
  perf-top - System profiling tool.
  perf-record - Run a command and record its profile into
  perf-report - Read (created by perf record) and display the profile
  perf-list - List all symbolic event types
  sysprof, sysprof-cli - System-wide Linux Profiler
  sysdig - the definitive system and process troubleshooting tool
  oprofile - a system-wide profiler
  opreport - produce symbol or binary image summaries
  opannotate - produce source or assembly annotated with profile data
  oparchive - produce archive of oprofile data for offline analysis
  opgprof - produce gprof-format profile data

pipe performance:
  pipemeter - measure speed of data going through a pipe/redirection
  pv - monitor the progress of data through a pipe

watchdogs/fault helpers:
  catchsegv - Catch segmentation faults in programs

  mytop - display MySQL server performance info like `top'
  sysbench - A modular, cross-platform and multi-threaded benchmark tool.

  cdecl — decode C type declarations
  HLint - haskell source code suggestions
  splint - A tool for statically checking C programs

  dlint - Internet Domain Name System (DNS) error checking utility

elf tools:
  nm - list symbols from object files
  ldd - print shared library dependencies
  pldd - display dynamic shared objects linked into a process,* - dynamic linker/loader
  objdump - display information from object files.
  objcopy - copy and translate object files
  ld - The GNU linker
  readelf - Displays information about ELF files.
  size - list section sizes and total size.
  chrpath - change the rpath or runpath in binaries
  patchelf - Modify ELF files

database admin:
tora - graphical toolkit for database developers and administrators
does not have a manul page
comes from the package 'tora'
  mysql - the MySQL command-line tool
  psql - PostgreSQL interactive terminal
  sqlite3 - A command line interface for SQLite version 3

  chrt - manipulate the real-time attributes of a process
  hwlatdetect - program to control the kernel hardware latency detection module
  latencytop - a tool for developers to visualize system latencies
  cyclictest - High resolution test program

load generators:
  hackbench - scheduler benchmark/stress test

  who - show who is logged on
  w - Show who is logged on and what they are doing.
  last, lastb - show listing of last logged in users

listing stuff:
  lsscsi - list SCSI devices (or hosts) and their attributes
  lspci - list all PCI devices
  lsusb - list USB devices
  lsdev - display information about installed hardware
  socklist - display list of open sockets
  procinfo - display system statistics gathered from /proc
  lshw - list hardware
  lscpu - display information about the CPU architecture
  lsblk - list block devices
  pccardctl - PCMCIA card control utility
  lspcmcia - display extended PCMCIA debugging information
  nproc - print the number of processing units available
  x86info — display x86 CPU diagnostics
  dmidecode - DMI table decoder

  icinga - network/systems status monitoring daemon
  nagios3 - network/systems status monitoring daemon
  ksysguard - KDE System Monitor
  gnome-system-monitor — view and control processes
  xfce4-taskmanager - a task (system process) manager for Xfce.
procexp - linux process explorer
no package for ubuntu
  mrtg - What is MRTG ?
  Monit - utility for monitoring services on a Unix system
  munin - Munin manpage hub

  fsck - check and repair a Linux filesystem
  mkfs - build a Linux filesystem
  debugfs - ext2/ext3/ext4 file system debugger
  dumpe2fs - dump ext2/ext3/ext4 filesystem information
  dump - ext2/3/4 filesystem backup
  tune2fs - adjust tunable filesystem parameters on ext2/ext3/ext4 filesystems
  e2fsck - check a Linux ext2/ext3/ext4 file system
  mke2fs - create an ext2/ext3/ext4 filesystem
  e2label - Change the label on an ext2/ext3/ext4 filesystem
  ext2 - the second extended file system
  ext2 - the third extended file system
  ext4 - the fourth extended file system
  dd - convert and copy a file
  e4defrag - online defragmenter for ext4 filesystem

total system info:
  inxi  - Command line system information script for console and IRC

  hardinfo - shows hardware information in a GTK+ window
  acpi - Shows battery status and other ACPI information
  psensor - Temperature monitoring application
  sensors - print sensors information
  xsensors - display hardware sensor information as a graphical read-out.
  memtester - stress test to find memory subsystem faults.
  memtest86+ - thorough real-mode memory tester (bootable tool, need to download and boot from it)

nvidia graphics card tools:

ATI graphics card tools:

  service - run a System V init script
  initctl - init daemon control tool
  telinit - change system runlevel
  runlevel - output previous and current runlevel
  shutdown - bring the system down
  reboot, halt, poweroff - reboot or stop the system
  systemd, init - systemd system and service manager
  update-rc.d - install and remove System-V style init script links
  invoke-rc.d - executes System-V style init script actions
  Boot-Up Manager - Graphical runlevel configuration tool

  chage - change user password expiry information

all round:
  glances - A cross-platform curses-based system monitoring tool