Bonjour
depuis quelques temps je trouve que la mémoire vive disponible de mon RPI 3b+ est basse (20%). Il n’y a pas si longtemps j’étais plutôt autour de 40%.
De plus, je ne sais pas si ça a un rapport où si c’est un autre problème (navigateur firefox?), mais j’ai souvent mon jeedom qui freeze lorsque je fais diverses config, scénario, etc… Je résous ce problème temporairement en fermant le navigateur ou en actualisant la page.
Je me suis donc posé la question de ce qui me prend de la mémoire, j’ai ouvert un terminal et regardé du côté des processus en tapant ps aux (voir liste totale en fin de post).
Ce que je souhaite c’est comprendre ce qui se cache derrière ces processus.
Je remarque notamment 13 processus apache qui me semblent identiques, avec des numéros de PID différents et lancé par www-data et qui prennent entre 1,5 et 2% de mémoire chacun
/usr/sbin/apache2 -k start
je note aussi
- 9 processus jeeCron , de 3 à 6% chacun
- les processus liés aux flux rtsp en SD de mes 2 caméras, que j’ai ajoutés récemment
- quelques processus deconz
- un processus mysql autour de 8%
mysql 805 0.7 7.9 689588 79736 ? Ssl 06:31 5:18 /usr/sbin/mysqld
pi@raspberrypi:~ $ ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.4 28176 4368 ? Ss 06:31 0:15 /sbin/init
root 2 0.0 0.0 0 0 ? S 06:31 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? I< 06:31 0:00 [rcu_gp]
root 4 0.0 0.0 0 0 ? I< 06:31 0:00 [rcu_par_gp]
root 6 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/0:0H-kb]
root 8 0.0 0.0 0 0 ? I< 06:31 0:00 [mm_percpu_wq]
root 9 0.0 0.0 0 0 ? S 06:31 0:10 [ksoftirqd/0]
root 10 0.4 0.0 0 0 ? I 06:31 3:01 [rcu_sched]
root 11 0.0 0.0 0 0 ? I 06:31 0:00 [rcu_bh]
root 12 0.0 0.0 0 0 ? S 06:31 0:01 [migration/0]
root 13 0.0 0.0 0 0 ? S 06:31 0:00 [cpuhp/0]
root 14 0.0 0.0 0 0 ? S 06:31 0:00 [cpuhp/1]
root 15 0.0 0.0 0 0 ? S 06:31 0:01 [migration/1]
root 16 0.0 0.0 0 0 ? S 06:31 0:03 [ksoftirqd/1]
root 18 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/1:0H-kb]
root 19 0.0 0.0 0 0 ? S 06:31 0:00 [cpuhp/2]
root 20 0.0 0.0 0 0 ? S 06:31 0:01 [migration/2]
root 21 0.0 0.0 0 0 ? S 06:31 0:37 [ksoftirqd/2]
root 23 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/2:0H-kb]
root 24 0.0 0.0 0 0 ? S 06:31 0:00 [cpuhp/3]
root 25 0.0 0.0 0 0 ? S 06:31 0:01 [migration/3]
root 26 0.0 0.0 0 0 ? S 06:31 0:02 [ksoftirqd/3]
root 28 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/3:0H-kb]
root 29 0.0 0.0 0 0 ? S 06:31 0:00 [kdevtmpfs]
root 30 0.0 0.0 0 0 ? I< 06:31 0:00 [netns]
root 34 0.0 0.0 0 0 ? S 06:31 0:00 [khungtaskd]
root 35 0.0 0.0 0 0 ? S 06:31 0:00 [oom_reaper]
root 36 0.0 0.0 0 0 ? I< 06:31 0:00 [writeback]
root 37 0.0 0.0 0 0 ? S 06:31 0:00 [kcompactd0]
root 38 0.0 0.0 0 0 ? I< 06:31 0:00 [crypto]
root 39 0.0 0.0 0 0 ? I< 06:31 0:00 [kblockd]
root 40 0.0 0.0 0 0 ? S 06:31 0:00 [watchdogd]
root 41 0.0 0.0 0 0 ? I< 06:31 0:00 [rpciod]
root 42 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/u9:0-hc]
root 43 0.0 0.0 0 0 ? I< 06:31 0:00 [xprtiod]
root 46 0.0 0.0 0 0 ? S 06:31 0:05 [kswapd0]
root 47 0.0 0.0 0 0 ? I< 06:31 0:00 [nfsiod]
root 58 0.0 0.0 0 0 ? I< 06:31 0:00 [kthrotld]
root 60 0.0 0.0 0 0 ? I< 06:31 0:00 [iscsi_eh]
root 61 0.0 0.0 0 0 ? I< 06:31 0:00 [dwc_otg]
root 62 0.0 0.0 0 0 ? I< 06:31 0:00 [DWC Notificatio]
root 63 0.0 0.0 0 0 ? S< 06:31 0:00 [vchiq-slot/0]
root 64 0.0 0.0 0 0 ? S< 06:31 0:00 [vchiq-recy/0]
root 65 0.0 0.0 0 0 ? S< 06:31 0:00 [vchiq-sync/0]
root 66 0.0 0.0 0 0 ? S 06:31 0:00 [vchiq-keep/0]
root 68 0.0 0.0 0 0 ? S 06:31 0:00 [irq/86-mmc1]
root 73 0.0 0.0 0 0 ? S 06:31 0:00 [scsi_eh_0]
root 74 0.0 0.0 0 0 ? I< 06:31 0:00 [scsi_tmf_0]
root 75 0.0 0.0 0 0 ? S 06:31 0:17 [usb-storage]
root 76 0.0 0.0 0 0 ? S 06:31 0:00 [irq/166-usb-001]
root 77 0.0 0.0 0 0 ? I< 06:31 0:01 [kworker/3:1H-kb]
root 78 0.0 0.0 0 0 ? I< 06:31 0:01 [kworker/1:1H-kb]
root 79 0.0 0.0 0 0 ? S 06:31 0:06 [jbd2/sda2-8]
root 80 0.0 0.0 0 0 ? I< 06:31 0:00 [ext4-rsv-conver]
root 81 0.0 0.0 0 0 ? I< 06:31 0:00 [ipv6_addrconf]
root 83 0.0 0.0 0 0 ? I< 06:31 0:01 [kworker/0:1H-kb]
root 88 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/2:1H-kb]
root 96 0.0 0.7 35844 7804 ? Ss 06:31 0:39 /lib/systemd/systemd-journald
root 137 0.0 0.2 14820 2216 ? Ss 06:31 0:00 /lib/systemd/systemd-udevd
root 203 0.0 0.0 0 0 ? S 06:31 0:00 [spi0]
root 244 0.0 0.0 0 0 ? I< 06:31 0:00 [cfg80211]
root 245 0.0 0.0 0 0 ? I< 06:31 0:00 [brcmf_wq/mmc1:0]
root 246 0.0 0.0 0 0 ? S 06:31 0:00 [brcmf_wdog/mmc1]
root 323 0.0 0.2 23756 2240 ? Ssl 06:31 0:09 /usr/sbin/rsyslogd -n
root 325 0.0 0.4 15140 4184 ? Ss 06:31 0:00 /usr/sbin/cupsd -l
root 328 0.0 0.3 7380 3252 ? Ss 06:31 0:01 /lib/systemd/systemd-logind
daemon 329 0.0 0.1 3628 1808 ? Ss 06:31 0:00 /usr/sbin/atd -f
root 333 0.2 0.2 5184 2448 ? Ss 06:31 1:28 /bin/bash /usr/bin/deCONZ-update2.sh
root 338 0.0 0.2 5320 2400 ? Ss 06:31 0:00 /usr/sbin/cron -f
root 347 0.1 0.1 27600 1324 ? SLsl 06:31 1:18 /usr/sbin/rngd -r /dev/hwrng
nobody 351 0.0 0.1 5296 1860 ? Ss 06:31 0:00 /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket --user nobod
message+ 353 0.0 0.2 6672 2948 ? Ss 06:31 0:03 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
pi 397 0.0 1.5 132572 15392 ? Sl 06:31 0:05 /home/pi/node-v12.4.0-linux-armv7l/bin/node /home/pi/assistant-plugins/index.js
root 408 0.0 0.2 10000 2168 ? Ss 06:31 0:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
avahi 410 0.1 0.2 6528 2732 ? Ss 06:31 0:42 avahi-daemon: running [raspberrypi.local]
avahi 420 0.0 0.0 6396 64 ? S 06:31 0:00 avahi-daemon: chroot helper
root 432 0.0 0.4 35164 4640 ? Ssl 06:31 0:00 /usr/sbin/cups-browsed
root 484 0.0 0.0 10468 892 ? Ss 06:31 0:00 wpa_supplicant -B -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dnl80211,wext
root 602 0.0 0.1 2936 1344 ? Ss 06:31 0:04 /sbin/dhcpcd -q -w
root 604 0.0 0.1 5700 1920 ? Ss 06:31 0:00 /usr/bin/vncserver-x11-serviced -fg
root 630 0.0 1.0 25036 10120 ? S 06:31 0:14 /usr/bin/vncserver-x11-core -service
root 640 0.0 0.3 37400 3296 ? Ssl 06:31 0:00 /usr/sbin/lightdm
root 646 0.0 0.2 5980 2668 tty1 Ss 06:31 0:00 /bin/login -f
ntp 653 0.0 0.2 7912 2832 ? Ssl 06:31 0:06 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 113:119
root 661 0.0 0.3 10208 3988 ? Ss 06:31 0:00 /usr/sbin/sshd -D
root 669 22.6 2.9 195944 29548 tty7 Ssl+ 06:31 155:35 /usr/lib/xorg/Xorg -s 0 dpms :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7
root 772 0.0 0.3 8772 3492 ? S 06:31 0:02 /usr/bin/vncagent service 14
mysql 805 0.7 7.9 689588 79736 ? Ssl 06:31 5:18 /usr/sbin/mysqld
root 807 0.0 2.6 142972 26256 ? Ss 06:31 0:03 /usr/sbin/apache2 -k start
root 815 0.0 0.0 2084 4 ? S 06:31 0:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow - b8:27:eb:b6:fa:c4
root 822 0.0 0.0 0 0 ? I< 06:31 0:00 [kworker/u9:2-hc]
root 823 0.0 0.1 7076 1688 ? Ss 06:31 0:00 /usr/lib/bluetooth/bluetoothd
www-data 826 0.1 2.0 143748 20936 ? S 06:31 1:02 /usr/sbin/apache2 -k start
www-data 827 0.1 2.1 143632 21108 ? S 06:31 0:50 /usr/sbin/apache2 -k start
www-data 830 0.1 2.1 143644 21420 ? S 06:31 0:45 /usr/sbin/apache2 -k start
root 870 0.5 0.7 47296 7196 ? Sl 06:31 3:29 /usr/bin/python3 /usr/bin/fail2ban-server -s /var/run/fail2ban/fail2ban.sock -p /var/run/fai
root 927 0.0 0.3 29708 3680 ? Sl 06:31 0:00 lightdm --session-child 14 17
pi 936 0.0 0.3 9752 3864 ? Ss 06:31 0:00 /lib/systemd/systemd --user
pi 939 0.0 0.0 11504 556 ? S 06:31 0:00 (sd-pam)
pi 944 0.0 0.5 50932 5292 ? Ssl 06:31 0:00 /usr/bin/lxsession -s LXDE -e LXDE
pi 953 0.0 0.2 6508 2448 ? Ss 06:31 0:00 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation
root 968 0.0 0.0 0 0 ? I< 06:31 0:00 [dio/sda2]
pi 1013 0.0 0.0 3792 828 ? Ss 06:31 0:00 /usr/bin/ssh-agent x-session-manager
pi 1134 0.0 0.3 6168 3568 tty1 S+ 06:31 0:00 -bash
pi 1154 0.0 0.3 39672 3160 ? Ssl 06:31 0:00 /usr/lib/gvfs/gvfsd
pi 1240 0.0 0.2 54268 2628 ? Sl 06:31 0:00 /usr/lib/gvfs/gvfsd-fuse /run/user/1000/gvfs -f -o big_writes
pi 1276 0.0 1.0 55116 10112 ? S 06:31 0:00 openbox --config-file /home/pi/.config/openbox/lxde-rc.xml
pi 1285 0.0 0.5 43548 5984 ? Sl 06:31 0:00 lxpolkit
pi 1294 0.2 1.3 122868 13268 ? Sl 06:31 1:31 lxpanel --profile LXDE
pi 1301 0.0 1.4 132440 14452 ? Sl 06:31 0:07 pcmanfm --desktop --profile LXDE
pi 1313 0.0 0.3 8308 3948 ? S 06:31 0:01 xscreensaver -no-splash
pi 1322 0.0 0.0 3792 204 ? Ss 06:31 0:00 /usr/bin/ssh-agent -s
pi 1326 0.0 1.1 146972 11512 ? Sl 06:31 0:00 light-locker
root 1332 0.0 0.3 37672 3800 ? Ssl 06:31 0:00 /usr/lib/policykit-1/polkitd --no-debug
pi 1336 0.0 0.3 45912 3092 ? Sl 06:31 0:00 /usr/lib/at-spi2-core/at-spi-bus-launcher --launch-immediately
pi 1342 0.0 0.6 28160 6976 ? S 06:31 0:00 /usr/bin/vncserverui service 15
pi 1355 0.0 0.2 6384 2440 ? S 06:31 0:00 /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork -
pi 1368 0.0 0.2 25548 2352 ? Sl 06:31 0:00 /usr/lib/dconf/dconf-service
pi 1392 0.0 0.6 27756 6744 ? S 06:31 0:00 /usr/bin/vncserverui -statusicon 5
Debian-+ 1394 0.0 0.2 10780 2144 ? Ss 06:31 0:00 /usr/sbin/exim4 -bd -q30m
pi 1402 0.0 0.2 26072 2432 ? Ssl 06:31 0:00 /usr/lib/menu-cache/menu-cached /run/user/1000/menu-cached-:0
pi 1424 0.0 0.3 30040 3660 ? Sl 06:31 0:00 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
pi 1464 0.0 0.6 74592 6988 ? Ssl 06:31 0:01 /usr/lib/gvfs/gvfs-udisks2-volume-monitor
root 1467 0.0 0.5 56692 5160 ? Ssl 06:31 0:33 /usr/lib/udisks2/udisksd --no-debug
pi 1474 0.0 0.2 51004 2336 ? Ssl 06:31 0:00 /usr/lib/gvfs/gvfs-afc-volume-monitor
pi 1479 0.0 0.2 37372 2772 ? Ssl 06:31 0:00 /usr/lib/gvfs/gvfs-goa-volume-monitor
pi 1483 0.0 0.2 38860 2552 ? Ssl 06:31 0:00 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
pi 1487 0.0 0.2 37296 2240 ? Ssl 06:31 0:00 /usr/lib/gvfs/gvfs-mtp-volume-monitor
pi 1532 0.0 0.2 49288 2520 ? Sl 06:31 0:00 /usr/lib/gvfs/gvfsd-trash --spawner :1.5 /org/gtk/gvfs/exec_spaw/0
www-data 1672 0.1 2.1 143692 20980 ? S 06:31 0:55 /usr/sbin/apache2 -k start
www-data 1720 0.1 1.9 143724 19872 ? S 06:32 0:56 /usr/sbin/apache2 -k start
root 2021 0.0 0.9 46900 9568 ? Ssl 17:10 0:00 /usr/lib/packagekit/packagekitd
www-data 2090 0.0 3.3 140160 33828 ? S 06:32 0:12 php /var/www/html/core/class/../php/jeeCron.php cron_id=3993
www-data 2219 0.3 2.1 83768 21672 ? Sl 06:32 2:24 /usr/bin/python3 /var/www/html/plugins/deconz/resources/deconzd/deconzd.py --loglevel debug
root 2275 0.0 0.3 7392 3468 ? S 06:32 0:00 sudo deCONZ --auto-connect=1 --dbg-error=1 --http-port=8484 --ws-port=20877 --upnp=0 -platfo
root 2280 3.6 2.1 121780 21056 ? Sl 06:32 25:00 deCONZ --auto-connect=1 --dbg-error=1 --http-port=8484 --ws-port=20877 --upnp=0 -platform mi
root 2300 0.0 0.0 0 0 ? I 17:53 0:00 [kworker/u8:1-ev]
www-data 2434 0.0 5.0 165988 50148 ? S 06:32 0:10 php /var/www/html/core/class/../php/jeeCron.php cron_id=4268
www-data 2446 0.0 3.4 140160 33988 ? S 06:32 0:00 php /var/www/html/core/class/../php/jeeCron.php cron_id=4269
www-data 2459 0.0 4.0 155684 40716 ? S 06:32 0:03 php /var/www/html/core/class/../php/jeeCron.php cron_id=4270
www-data 2472 0.1 5.8 174180 58124 ? S 06:32 0:41 php /var/www/html/core/class/../php/jeeCron.php cron_id=4271
www-data 2484 0.0 5.0 165988 50012 ? S 06:32 0:15 php /var/www/html/core/class/../php/jeeCron.php cron_id=4272
www-data 2502 0.0 5.4 170084 54244 ? S 06:32 0:10 php /var/www/html/core/class/../php/jeeCron.php cron_id=4273
www-data 2534 0.0 4.8 163940 48184 ? S 06:32 0:10 php /var/www/html/core/class/../php/jeeCron.php cron_id=4274
www-data 2582 12.3 2.9 206968 29468 ? Sl 06:32 84:44 /usr/bin/python3 /var/www/html/plugins/googlecast/resources/googlecast.py --loglevel info --
root 2620 0.0 0.3 7392 3184 ? S 06:32 0:00 sudo nodejs /var/www/html/plugins/gsh/core/class/../../resources/gshd/gshd.js --udp_discover
root 2624 0.0 0.6 123400 6948 ? Sl 06:32 0:01 nodejs /var/www/html/plugins/gsh/core/class/../../resources/gshd/gshd.js --udp_discovery_por
www-data 2712 0.5 1.7 68236 17360 ? Sl 06:32 3:41 /usr/bin/python3 /var/www/html/plugins/MerossIOT/resources/MerossIOTd/MerossIOTd.py --muser
www-data 2765 0.0 1.9 94112 19500 ? SNl 06:33 0:02 nodejs /var/www/html/plugins/shelly/resources/shelly.js 192.168.0.38 http://192.168.0.38/plu
www-data 2821 0.8 3.8 142272 38560 ? S 06:33 5:59 php /var/www/html/core/class/../php/jeeCron.php cron_id=103
www-data 3502 2.1 3.4 145768 34656 ? Sl 06:33 14:53 /usr/bin/python /var/www/html/plugins/openzwave/core/class/../../resources/openzwaved/openzw
www-data 5241 4.7 2.2 73852 22724 ? Sl 06:35 32:33 /usr/bin/python /var/www/html/plugins/xiaomihome/resources/xiaomihomed/xiaomihomed.py --logl
root 6773 0.0 0.0 0 0 ? I 17:41 0:00 [kworker/u8:0-ev]
root 7595 0.0 0.0 0 0 ? I 17:55 0:00 [kworker/2:3]
root 8430 0.0 0.0 0 0 ? I 17:55 0:00 [kworker/3:2-mm_]
root 11523 0.0 0.0 3464 348 ? S 17:56 0:00 sleep 10
www-data 11821 47.6 4.0 142208 39972 ? S 17:57 0:01 php /var/www/html/core/class/../php/jeeCron.php cron_id=10
www-data 11825 0.0 0.0 1888 364 ? S 17:57 0:00 sh -c avconv -i "rtsp://#username#:#password#@192.168.0.17:554/live/ch1" -frames:v 1 -y
www-data 11826 23.3 3.0 131252 30748 ? R 17:57 0:00 avconv -i rtsp://#username#:#password#@192.168.0.17:554/live/ch1 -frames:v 1 -y -r 1 -vs
www-data 11889 0.0 0.0 1888 416 ? S 17:57 0:00 sh -c sudo /usr/bin/python /var/www/html/plugins/harmonyhub/core/class/../../3rdparty/PyHarm
root 11891 2.0 0.3 7392 3520 ? S 17:57 0:00 sudo /usr/bin/python /var/www/html/plugins/harmonyhub/core/class/../../3rdparty/PyHarmony/ha
root 11896 61.0 1.2 63000 12780 ? Sl 17:57 0:00 /usr/bin/python /var/www/html/plugins/harmonyhub/core/class/../../3rdparty/PyHarmony/harmony
pi 11943 0.0 0.2 7740 2900 pts/0 R+ 17:57 0:00 ps aux
root 16263 0.0 0.0 0 0 ? I 17:45 0:00 [kworker/0:3-eve]
root 16674 0.0 0.0 0 0 ? I 15:59 0:00 [kworker/3:1-mm_]
root 16821 0.0 0.0 0 0 ? I 17:45 0:00 [kworker/2:2-mm_]
www-data 17384 0.3 1.9 143544 19720 ? S 17:17 0:07 /usr/sbin/apache2 -k start
www-data 17414 0.3 1.4 143464 14324 ? S 17:17 0:07 /usr/sbin/apache2 -k start
www-data 17415 0.2 1.5 143484 15620 ? S 17:17 0:05 /usr/sbin/apache2 -k start
root 18551 0.0 0.5 11632 5832 ? Ss 17:18 0:00 sshd: pi [priv]
pi 18726 0.0 0.4 11764 4284 ? R 17:18 0:00 sshd: pi@pts/0
pi 18733 0.0 0.4 6324 4156 pts/0 Ss 17:18 0:01 -bash
root 18774 0.0 0.0 0 0 ? I 17:32 0:00 [kworker/1:2-cgr]
root 19853 0.0 0.0 0 0 ? I 17:46 0:00 [kworker/1:0-mm_]
root 20527 0.0 0.0 0 0 ? I 17:47 0:00 [kworker/u8:2-ev]
www-data 21642 0.1 2.1 143716 21312 ? S 07:14 0:59 /usr/sbin/apache2 -k start
www-data 23059 0.1 2.0 143604 20776 ? S 07:15 1:02 /usr/sbin/apache2 -k start
root 23506 6.2 0.0 0 0 ? I 17:20 2:18 [kworker/2:1-mm_]
www-data 24076 0.1 2.0 143716 20160 ? S 07:15 0:58 /usr/sbin/apache2 -k start
pi 26768 7.2 0.3 7088 3644 ? SN 17:49 0:31 fuzzyflakes -root
root 27562 0.0 0.0 0 0 ? I 17:36 0:00 [kworker/3:0-mm_]
www-data 27774 0.1 1.6 143472 16160 ? S 17:36 0:01 /usr/sbin/apache2 -k start
root 28931 0.0 0.0 0 0 ? I 17:50 0:00 [kworker/2:0-mm_]
root 29265 0.0 0.0 0 0 ? I 17:50 0:00 [kworker/0:0-eve]
pi@raspberrypi:~ $