Uso de atop
Breve manual del uso de atop.
En primer lugar instalamos atop
apt-get install atop
A continuación, iniciamos el servicio atop para comenzar el registro automático de recursos del sistema:
service atop start
Nota: atop crea automáticamente una tarea en cron para comenzar a registrar a medianoche si no se está ejecutando.
Abreel archivo /etc/init.d/atop(o /etc/default/atop, o /usr/share/atop/atop.daily) y modifica la línea y establece el intervalo requerido (en segundos):
INTERVAL=60
Los datos registrados se pueden abrir mediante el comando:
atop -r /var/log/atop/atop_*****
Donde *** es el valor de registro real (fecha). Para moverse entre los intervalos puedes usar las flechas del teclado o teclas de acceso rápido t y Shift + T .
Para deshabilitar atop, usa los siguientes comandos:
mv /etc/cron.d/atop /root/atop service atop stop
Ejemplo de un registro de atop
ATOP - trafico 2021/04/03 08:08:59 -------------- 125d22h10m44s elapsed
PRC | sys 9m56s | user 4m21s | | | #proc 31 | #trun 3 | #tslpi 82 | #tslpu 0 | #zombie 0 | clones 106e6 | | | no procacct |
CPU | sys 0% | user 0% | irq 0% | | idle 200% | wait 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 1.94GHz | curscal ?% |
cpu | sys 0% | user 0% | irq 0% | | idle 100% | cpu000 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 2.28GHz | curscal ?% |
cpu | sys 0% | user 0% | irq 0% | | idle 100% | cpu001 w 0% | steal 0% | guest 0% | | ipc notavail | cycl unknown | curf 1.60GHz | curscal ?% |
CPL | avg1 1.81 | | avg5 2.19 | avg15 2.47 | | | csw 281818e6 | | intr 12095e7 | | | numcpu 2 | |
MEM | tot 1.0G | free 773.8M | cache 162.1M | dirty 0.8M | buff 0.0M | slab 0.0M | slrec 0.0M | shmem 32.2M | shrss 0.0M | shswp 0.0M | vmbal 0.0M | hptot 0.0M | hpuse 0.0M |
SWP | tot 1.0G | free 1.0G | | | | | | | | | vmcom 108.2G | | vmlim 102.4G |
PAG | scan 11390e5 | steal 1134e6 | | stall 0 | | | | | | | swin 364324 | | swout 3307e3 |
PSI | cs 2/0/0 | | ms 0/0/0 | mf 0/0/0 | | is 1/1/1 | if 1/1/1 | | | | | | |
LVM | dm-2 | busy 19% | | read 33427e4 | write 1254e6 | KiB/r 44 | KiB/w 9 | | MBr/s 1.3 | MBw/s 1.1 | avq 1.28 | | avio 1.32 ms |
LVM | dm-0 | busy 17% | | read 38284e4 | write 1658e6 | KiB/r 45 | KiB/w 10 | | MBr/s 1.5 | MBw/s 1.5 | avq 0.93 | | avio 0.96 ms |
LVM | dm-1 | busy 16% | | read 30503e4 | write 1624e6 | KiB/r 46 | KiB/w 12 | | MBr/s 1.3 | MBw/s 1.8 | avq 0.87 | | avio 0.96 ms |
LVM | dm-3 | busy 15% | | read 47981e4 | write 1571e6 | KiB/r 44 | KiB/w 9 | | MBr/s 1.9 | MBw/s 1.4 | avq 1.12 | | avio 0.85 ms |
LVM | dm-5 | busy 2% | | read 172160 | write 1581e5 | KiB/r 43 | KiB/w 20 | | MBr/s 0.0 | MBw/s 0.3 | avq 3.19 | | avio 1.76 ms |
LVM | dm-8 | busy 0% | | read 62887 | write 7744e3 | KiB/r 21 | KiB/w 12 | | MBr/s 0.0 | MBw/s 0.0 | avq 6.98 | | avio 1.83 ms |
LVM | dm-7 | busy 0% | | read 62887 | write 7744e3 | KiB/r 21 | KiB/w 12 | | MBr/s 0.0 | MBw/s 0.0 | avq 6.99 | | avio 1.83 ms |
LVM | dm-11 | busy 0% | | read 53327 | write 7526e3 | KiB/r 21 | KiB/w 11 | | MBr/s 0.0 | MBw/s 0.0 | avq 34.12 | | avio 1.84 ms |
LVM | dm-4 | busy 0% | | read 364470 | write 3307e3 | KiB/r 4 | KiB/w 4 | | MBr/s 0.0 | MBw/s 0.0 | avq 38.28 | | avio 0.38 ms |
LVM | dm-10 | busy 0% | | read 10825 | write 315635 | KiB/r 24 | KiB/w 17 | | MBr/s 0.0 | MBw/s 0.0 | avq 21.30 | | avio 1.46 ms |
LVM | dm-6 | busy 0% | | read 3674 | write 28208 | KiB/r 4 | KiB/w 4 | | MBr/s 0.0 | MBw/s 0.0 | avq 3.43 | | avio 2.35 ms |
DSK | sdc | busy 19% | | read 19903e4 | write 1241e6 | KiB/r 76 | KiB/w 9 | | MBr/s 1.4 | MBw/s 1.1 | avq 0.43 | | avio 1.46 ms |
DSK | sde | busy 17% | | read 23129e4 | write 1617e6 | KiB/r 75 | KiB/w 10 | | MBr/s 1.6 | MBw/s 1.5 | avq 0.22 | | avio 1.06 ms |
DSK | sdd | busy 16% | | read 17500e4 | write 1525e6 | KiB/r 83 | KiB/w 13 | | MBr/s 1.3 | MBw/s 1.8 | avq 0.19 | | avio 1.08 ms |
DSK | sdb | busy 15% | | read 29484e4 | write 1553e6 | KiB/r 73 | KiB/w 9 | | MBr/s 1.9 | MBw/s 1.4 | avq 0.30 | | avio 0.94 ms |
DSK | sda | busy 3% | | read 6869731 | write 8765e4 | KiB/r 122 | KiB/w 39 | | MBr/s 0.1 | MBw/s 0.3 | avq 2.27 | | avio 3.25 ms |
NET | transport | tcpi 635685 | tcpo 614339 | udpi 225373 | udpo 225392 | tcpao 7 | tcppo 3 | | tcprs 1994 | tcpie 0 | tcpor 106 | udpnp 61 | udpie 0 |
NET | network | ipi 2479166 | | ipo 846467 | ipfrw 0 | deliv 1021e3 | | | | | icmpi 7 | | icmpo 949 |
NET | eth0 0% | pcki 34036e3 | pcko 860356 | sp 10 Gbps | si 2 Kbps | so 0 Kbps | | coll 0 | mlti 0 | erri 0 | erro 0 | drpi 13567 | drpo 0 |
NET | eth1 0% | pcki 51588 | pcko 315 | sp 10 Gbps | si 0 Kbps | so 0 Kbps | | coll 0 | mlti 0 | erri 0 | erro 0 | drpi 0 | drpo 0 |
NET | eth2 0% | pcki 303 | pcko 417 | sp 10 Gbps | si 0 Kbps | so 0 Kbps | | coll 0 | mlti 0 | erri 0 | erro 0 | drpi 0 | drpo 0 |
NET | lo ---- | pcki 7394 | pcko 7394 | sp 0 Mbps | si 0 Kbps | so 0 Kbps | | coll 0 | mlti 0 | erri 0 | erro 0 | drpi 0 | drpo 0 |
*** system and process activity since boot ***
PID SYSCPU USRCPU VGROW RGROW RDDSK WRDSK RUID EUID ST EXC THR S CPUNR CPU CMD 1/1
145 8m15s 3m17s 29608K 11860K 7336K 4K Debian-s Debian-s N- - 1 S 7 0% snmpd
166643 44.69s 26.22s 12820K 6192K 60K 0K root root N- - 1 S 18 0% ssh
195 31.93s 16.15s 8432K 4928K 4K 108K root root N- - 1 S 7 0% apache2
51 10.75s 6.73s 83804K 60680K 280K 0K root root N- - 1 S 7 0% systemd-journa
92 1.79s 5.95s 9108K 4036K 1256K 0K messageb messageb N- - 1 R 7 0% dbus-daemon
1 2.60s 4.22s 166.5M 10140K 98.2M 14432K root root N- - 1 R 7 0% systemd
373 3.03s 1.13s 43472K 3784K 360K 8K root root N- - 1 S 7 0% master
94 3.10s 0.70s 5508K 2240K 14820K 18.0G root root N- - 1 S 7 0% cron
91 1.59s 1.14s 152.5M 4096K 1280K 48616K root root N- - 3 S 18 0% rsyslogd
90 0.66s 1.03s 19512K 7276K 232K 0K root root N- - 1 S 7 0% systemd-logind
376 0.59s 0.25s 43864K 6912K 132K 0K postfix postfix N- - 1 S 7 0% qmgr
261385 0.07s 0.67s 61968K 53332K 13404K 1080K root root N- - 1 S 7 0% apt
261531 0.06s 0.00s 10996K 4436K 164K 0K root root N- - 1 R 18 0% atop
382 0.03s 0.03s 4656K 3668K 88944K 100.7M root root N- - 1 S 18 0% bash
261370 0.01s 0.02s 16900K 8248K 12K 0K root root N- - 1 S 18 0% sshd
151 0.01s 0.02s 6920K 3024K 852K 8K root root N- - 1 S 18 0% login
261373 0.02s 0.00s 21024K 8324K 140K 0K root root N- - 1 S 18 0% systemd
261382 0.00s 0.02s 4656K 4044K 480K 8K root root N- - 1 S 18 0% bash
260607 0.00s 0.01s 43812K 7080K 0K 0K postfix postfix N- - 1 S 7 0% pickup
261532 0.00s 0.01s 8324K 5236K 0K 0K root root N- - 1 S 18 0% update-rc.d
261419 0.00s 0.01s 9180K 3716K 0K 40K root root N- - 1 S 7 0% dpkg
159 0.00s 0.00s 15848K 6520K 184K 12K root root N- - 1 S 7 0% sshd
254411 0.00s 0.00s 1.2G 3916K 0K 0K www-data www-data N- - 27 S 7 0% apache2
254412 0.00s 0.00s 1.2G 3916K 0K 0K www-data www-data N- - 27 S 7 0% apache2
261374 0.00s 0.00s 166.4M 3296K 0K 0K root root N- - 1 S 7 0% (sd-pam)
261538 0.00s 0.00s 8040K 3272K 0K 0K root root N- - 1 S 18 0% systemctl
261420 0.00s 0.00s 3780K 2928K 480K 8K root root N- - 1 S 18 0% atop.postinst
153 0.00s 0.00s 2416K 1512K 52K 0K root root N- - 1 S 7 0% agetty
152 0.00s 0.00s 2416K 1408K 0K 0K root root N- - 1 S 18 0% agetty
261536 0.00s 0.00s 2292K 752K 40K 0K root root N- - 1 S 7 0% sleep
261535 0.00s 0.00s 3732K 248K 0K 0K root root N- - 1 S 7 0% atop.daily