nmon

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nmon とは、システムアドミニストレーター、チューナーのためのベンチマークツールです。

読み方

nmon
えぬもん

概要

nmon は、CPU、メモリ、ディスクI/O、ネットワークなどのシステムリソースの使用状況をリアルタイムにモニタリングできるツールです。

┌nmon─14g───────────────Hostname=ubuntu───────Refresh= 2secs ───15:06.41 ┐
│                                                                                                  │
│  ------------------------------       For help type H or ...                                     │
│  #    #  #    #   ####   #    #        nmon -?  - hint                                           │##   #  ##  ##  #    #  ##   #        nmon -h  - full                                           │# #  #  # ## #  #    #  # #  #                                                                  │#  # #  #    #  #    #  #  # #       To start the same way every time                           │#   ##  #    #  #    #  #   ##        set the NMON ksh variable                                 │#    #  #    #   ####   #    #                                                                  │------------------------------                                                                  │
│                                                                                                  │
│  Use these keys to toggle statistics on/off:                                                     │
│     c = CPU        l = CPU Long-term   - = Faster screen updates                                 │
│     m = Memory     j = Filesystems     + = Slower screen updates                                 │
│     d = Disks      n = Network         V = Virtual Memory                                        │
│     r = Resource   N = NFS             v = Verbose hints                                         │
│     k = kernel     t = Top-processes   . = only busy disks/procs                                 │
│     h = more options                   q = Quit                                                  │
│─────────────────────────────────────────────────│
│                                                                                                  │
│                                                                                                  │
│                                                                                                  │
│                                                                                                  │
└─────────────────────────────────────────────────┘

インストール

sudo apt-get install nmon

使い方

コマンドラインオプション

Hint: nmon [-h] [-s <seconds>] [-c <count>] [-f -d <disks> -t -r <name>] [-x]
 
        -h            FULL help information
        Interactive-Mode:
        read startup banner and type: "h" once it is running
        For Data-Collect-Mode (-f)
        -f            spreadsheet output format [note: default -s300 -c288]
        optional
        -s <seconds>  between refreshing the screen [default 2]
        -c <number>   of refreshes [default millions]
        -d <disks>    to increase the number of disks [default 256]
        -t            spreadsheet includes top processes
        -x            capacity planning (15 min for 1 day = -fdt -s 900 -c 96)
 
Version - nmon 14g
 
For Interactive-Mode
        -s <seconds>  time between refreshing the screen [default 2]
        -c <number>   of refreshes [default millions]
        -g <filename> User Defined Disk Groups [hit g to show them]
                      - file = on each line: group_name <disks list> space separated
                      - like: database sdb sdc sdd sde
                      - upto 64 disk groups, 512 disks per line
                      - disks can appear more than once and in many groups
        -b            black and white [default is colour]
        example: nmon -s 1 -c 100
 
For Data-Collect-Mode = spreadsheet format (comma separated values)
        Note: use only one of f,F,z,x or X and make it the first argument
        -f            spreadsheet output format [note: default -s300 -c288]
                         output file is <hostname>_YYYYMMDD_HHMM.nmon
        -F <filename> same as -f but user supplied filename
        -r <runname>  used in the spreadsheet file [default hostname]
        -t            include top processes in the output
        -T            as -t plus saves command line arguments in UARG section
        -s <seconds>  between snap shots
        -c <number>   of snapshots before nmon stops
        -d <disks>    to increase the number of disks [default 256]
        -l <dpl>      disks/line default 150 to avoid spreadsheet issues. EMC=64.
        -g <filename> User Defined Disk Groups (see above) - see BBBG & DG lines
        -N            include NFS Network File System
        -I <percent>  Include process & disks busy threshold (default 0.1)
                      don't save or show proc/disk using less than this percent
        -m <directory> nmon changes to this directory before saving to file
        example: collect for 1 hour at 30 second intervals with top procs
                 nmon -f -t -r Test1 -s30 -c120
 
        To load into a spreadsheet:
        sort -A *nmon >stats.csv
        transfer the stats.csv file to your PC
        Start spreadsheet & then Open type=comma-separated-value ASCII file
         The nmon analyser or consolidator does not need the file sorted.
 
Capacity planning mode - use cron to run each day
        -x            sensible spreadsheet output for CP =  one day
                      every 15 mins for 1 day ( i.e. -ft -s 900 -c 96)
        -X            sensible spreadsheet output for CP = busy hour
                      every 30 secs for 1 hour ( i.e. -ft -s 30 -c 120)
 
Interactive Mode Commands
        key --- Toggles to control what is displayed ---
        h   = Online help information
        r   = Machine type, machine name, cache details and OS version + LPAR
        c   = CPU by processor stats with bar graphs
        l   = long term CPU (over 75 snapshots) with bar graphs
        m   = Memory stats
        L   = Huge memory page stats
        V   = Virtual Memory and Swap stats
        k   = Kernel Internal stats
        n   = Network stats and errors
        N   = NFS Network File System
        d   = Disk I/O Graphs
        D   = Disk I/O Stats
        o   = Disk I/O Map (one character per disk showing how busy it is)
        o   = User Defined Disk Groups
        j   = File Systems 
        t   = Top Process stats use 1,3,4,5 to select the data & order
        u   = Top Process full command details
        v   = Verbose mode - tries to make recommendations
        b   = black and white mode (or use -b option)
        .   = minimum mode i.e. only busy disks and processes
 
        key --- Other Controls ---
        +   = double the screen refresh time
        -   = halves the screen refresh time
        q   = quit (also x, e or control-C)
        0   = reset peak counts to zero (peak = ">")
        space = refresh screen now
 
Startup Control
        If you find you always type the same toggles every time you start
        then place them in the NMON shell variable. For example:
         export NMON=cmdrvtan
 
Others:
        a) To you want to stop nmon - kill -USR2 <nmon-pid>
        b) Use -p and nmon outputs the background process pid
        c) To limit the processes nmon lists (online and to a file)
           Either set NMONCMD0 to NMONCMD63 to the program names
           or use -C cmd:cmd:cmd etc. example: -C ksh:vi:syncd
        d) If you want to pipe nmon output to other commands use a FIFO:
           mkfifo /tmp/mypipe
           nmon -F /tmp/mypipe &
           grep /tmp/mypipe
        e) If nmon fails please report it with:
           1) nmon version like: 14g
           2) the output of cat /proc/cpuinfo
           3) some clue of what you were doing
           4) I may ask you to run the debug version
 
        Developer Nigel Griffiths
        Feedback welcome - on the current release only and state exactly the problem
        No warranty given or implied.

コマンドの実行例

┌nmon─14g────Hostname=ubuntu───────Refresh= 2secs ───15:08.05──┐
│ CPU Utilisation ───────────────────────────────│
│---------------------------+-------------------------------------------------+ │
│CPU  User%  Sys% Wait% Idle|0          |25         |50          |75       100| │
│  1  12.4   3.5   0.0  84.1|UUUUUUs     >                                    | │
│---------------------------+-------------------------------------------------+ │
│ Network I/O ─────────────────────────────────│
│I/F Name Recv=KB/s Trans=KB/s packin packout insize outsize Peak->Recv Trans   │
│    eth0     0.1     0.0       1.0      0.0    92.0    0.0        2.7     0.0  │
│      lo     0.5     0.5       3.0      3.0   165.2  165.2       49.4    49.4  │
│ docker0     0.0     0.0       0.0      0.0     0.0    0.0        0.0     0.0  │
│ Disk I/O ──/proc/diskstats────mostly in KB/s─────Warning:contains duplicates──│
│DiskName Busy  Read WriteKB|0          |25         |50          |75       100| │
│sda        0%    0.0    0.0|>                                                | │
│sda1       0%    0.0    0.0|>                                                | │
│sda2       0%    0.0    0.0|>                                                | │
│sda5       0%    0.0    0.0|>                                                | │
│Totals Read-MB/s=0.0      Writes-MB/s=0.0      Transfers/sec=0.0               │
│───────────────────────────────────────│

ファイルにロギングする

-f
ファイルに出力する
-s 秒数
秒数ごとに計測する
-c カウント
何回実行するか
-t
トッププロセスの情報を出力する
nmon -f -s 10 -c 360 -t

-F を指定しない場合、カレントディレクトリにログファイルが作成されます。

ubuntu_140816_1511.nmon

以下の様な出力が保存されます。

$ head -100 ubuntu_140816_1511.nmon
AAA,progname,nmon
AAA,command,nmon -f -s 10 -c 360 -t 
AAA,version,14g
AAA,disks_per_line,150
AAA,max_disks,256,set by -d option
AAA,disks,4,
AAA,host,ubuntu
AAA,user,kaworu
AAA,OS,Linux,3.13.0-24-generic,#47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014,x86_64
AAA,runname,ubuntu
AAA,time,15:11.06
AAA,date,16-AUG-2014
AAA,interval,10
AAA,snapshots,360
AAA,cpus,1
AAA,proc_stat_variables,8
AAA,note0, Warning - use the UNIX sort command to order this file before loading into a spreadsheet
AAA,note1, The First Column is simply to get the output sorted in the right order
AAA,note2, The T0001-T9999 column is a snapshot number. To work out the actual time; see the ZZZ section at the end
CPU001,CPU 1 ubuntu,User%,Sys%,Wait%,Idle%
CPU_ALL,CPU Total ubuntu,User%,Sys%,Wait%,Idle%,Busy,CPUs
MEM,Memory MB ubuntu,memtotal,hightotal,lowtotal,swaptotal,memfree,highfree,lowfree,swapfree,memshared,cached,active,bigfree,buffers,swapcached,inactive
PROC,Processes ubuntu,Runnable,Blocked,pswitch,syscall,read,write,fork,exec,sem,msg
NET,Network I/O ubuntu,eth0-read-KB/s,lo-read-KB/s,docker0-read-KB/s,eth0-write-KB/s,lo-write-KB/s,docker0-write-KB/s,
NETPACKET,Network Packets ubuntu,eth0-read/s,lo-read/s,docker0-read/s,eth0-write/s,lo-write/s,docker0-write/s,
DISKBUSY,Disk %Busy ubuntu,sda,sda1,sda2,sda5
DISKREAD,Disk Read KB/s ubuntu,sda,sda1,sda2,sda5
DISKWRITE,Disk Write KB/s ubuntu,sda,sda1,sda2,sda5
DISKXFER,Disk transfers per second ubuntu,sda,sda1,sda2,sda5
DISKBSIZE,Disk Block Size ubuntu,sda,sda1,sda2,sda5
DGBUSY,Disk Group Busy ubuntu
DGREAD,Disk Group Read KB/s ubuntu
DGWRITE,Disk Group Write KB/s ubuntu
DGSIZE,Disk Group Block Size KB ubuntu
DGXFER,Disk Group Transfers/s ubuntu
JFSFILE,JFS Filespace %Used ubuntu,/,/dev,/run,/run/lock,/run/shm,/run/user,/run/vmblock-fuse,/run/user/1000/gvfs
TOP,%CPU Utilisation
TOP,+PID,Time,%CPU,%Usr,%Sys,Size,ResSet,ResText,ResData,ShdLib,MinorFault,MajorFault,Command
BBBP,000,/etc/release
BBBP,001,/etc/release,"DISTRIB_ID=Ubuntu"
BBBP,002,/etc/release,"DISTRIB_RELEASE=14.04"
BBBP,003,/etc/release,"DISTRIB_CODENAME=trusty"
BBBP,004,/etc/release,"DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS""
BBBP,005,/etc/release,"NAME="Ubuntu""
BBBP,006,/etc/release,"VERSION="14.04, Trusty Tahr""
BBBP,007,/etc/release,"ID=ubuntu"
BBBP,008,/etc/release,"ID_LIKE=debian"
BBBP,009,/etc/release,"PRETTY_NAME="Ubuntu 14.04 LTS""
BBBP,010,/etc/release,"VERSION_ID="14.04""
BBBP,011,/etc/release,"HOME_URL="http://www.ubuntu.com/""
BBBP,012,/etc/release,"SUPPORT_URL="http://help.ubuntu.com/""
BBBP,013,/etc/release,"BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/""
BBBP,014,lsb_release
BBBP,015,lsb_release,"Distributor ID:	Ubuntu"
BBBP,016,lsb_release,"Description:	Ubuntu 14.04 LTS"
BBBP,017,lsb_release,"Release:	14.04"
BBBP,018,lsb_release,"Codename:	trusty"
BBBP,019,fdisk-l
BBBP,020,/proc/cpuinfo
BBBP,021,/proc/cpuinfo,"processor	: 0"
BBBP,022,/proc/cpuinfo,"vendor_id	: GenuineIntel"
BBBP,023,/proc/cpuinfo,"cpu family	: 6"
BBBP,024,/proc/cpuinfo,"model		: 42"
BBBP,025,/proc/cpuinfo,"model name	: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz"
BBBP,026,/proc/cpuinfo,"stepping	: 7"
BBBP,027,/proc/cpuinfo,"microcode	: 0x1a"
BBBP,028,/proc/cpuinfo,"cpu MHz		: 3411.219"
BBBP,029,/proc/cpuinfo,"cache size	: 8192 KB"
BBBP,030,/proc/cpuinfo,"physical id	: 0"
BBBP,031,/proc/cpuinfo,"siblings	: 1"
BBBP,032,/proc/cpuinfo,"core id		: 0"
BBBP,033,/proc/cpuinfo,"cpu cores	: 1"
BBBP,034,/proc/cpuinfo,"apicid		: 0"
BBBP,035,/proc/cpuinfo,"initial apicid	: 0"
BBBP,036,/proc/cpuinfo,"fpu		: yes"
BBBP,037,/proc/cpuinfo,"fpu_exception	: yes"
BBBP,038,/proc/cpuinfo,"cpuid level	: 13"
BBBP,039,/proc/cpuinfo,"wp		: yes"
BBBP,040,/proc/cpuinfo,"flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm ida arat epb xsaveopt pln pts dtherm"
BBBP,041,/proc/cpuinfo,"bogomips	: 6822.43"
BBBP,042,/proc/cpuinfo,"clflush size	: 64"
BBBP,043,/proc/cpuinfo,"cache_alignment	: 64"
BBBP,044,/proc/cpuinfo,"address sizes	: 40 bits physical, 48 bits virtual"
BBBP,045,/proc/cpuinfo,"power management:"
BBBP,046,/proc/cpuinfo,""
BBBP,047,/proc/meminfo
BBBP,048,/proc/meminfo,"MemTotal:        1010508 kB"
BBBP,049,/proc/meminfo,"MemFree:           82560 kB"
BBBP,050,/proc/meminfo,"Buffers:           21564 kB"
BBBP,051,/proc/meminfo,"Cached:           203480 kB"
BBBP,052,/proc/meminfo,"SwapCached:        23640 kB"
BBBP,053,/proc/meminfo,"Active:           326760 kB"
BBBP,054,/proc/meminfo,"Inactive:         440868 kB"
BBBP,055,/proc/meminfo,"Active(anon):     216020 kB"
BBBP,056,/proc/meminfo,"Inactive(anon):   340740 kB"
BBBP,057,/proc/meminfo,"Active(file):     110740 kB"
BBBP,058,/proc/meminfo,"Inactive(file):   100128 kB"
BBBP,059,/proc/meminfo,"Unevictable:          32 kB"
BBBP,060,/proc/meminfo,"Mlocked:              32 kB"
BBBP,061,/proc/meminfo,"SwapTotal:       1046524 kB"

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