Smemstat: shared memory statistics
Smemstat reports the physical memory usage taking into consideration shared memory. The tool can either report a current snapshot of memory usage or periodically dump out any changes in memory.
Smemstat command line options
- -c get command name from processes comm field
- -d strip directory basename off command information
- -g report memory in gigabytes
- -h show this help information
- -k report memory in kilobytes
- -l show long (full) command information
- -m report memory in megabytes
- -o file dump data to json formatted file
- -p proclist specify comma separated list of processes to monitor
- -q run quietly, useful for -o output only
- -s show short command information
- -t top mode, show only changes in memory
- -T top mode, show top memory hoggers
Example Output
Analyise 60 seconds of activity with 10 seconds duration per sample, 6 samples
smemstat 10 6
Change in memory:
PID Swap USS PSS RSS User Command
7513 0.0 B 786.4 K 786.4 K 786.4 K king /usr/lib/firefox/firefox
6152 0.0 B 34.4 K 35.6 K 36.8 K king /usr/lib/thunderbird/thunderbird
2459 0.0 B 24.4 K 24.4 K 24.4 K king /usr/lib/x86_64-linux-gnu/hud/hud-service
2670 -5734.4 B 16.0 K 16.0 K 16.0 K king compiz
2289 -6553.6 B 8192.0 B 8192.0 B 8192.0 B king init
2763 -5324.8 B 5324.8 B 5324.8 B 5324.8 B king nautilus
13120 0.0 B 4915.2 B 4915.2 B 5324.8 B king ./smemstat
2372 0.0 B 3276.8 B 3276.8 B 3276.8 B king /usr/bin/ibus-daemon
2409 0.0 B 409.6 B 409.6 B 409.6 B king /usr/lib/ibus/ibus-ui-gtk3
2384 -409.6 B 409.6 B 409.6 B 409.6 B king /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
Total: -17.6 K 883.2 K 884.4 K 886.0 K
PID Swap USS PSS RSS User Command
7513 0.0 B 1646.0 K 1646.1 K 1646.4 K king /usr/lib/firefox/firefox
2459 0.0 B 235.6 K 235.6 K 235.6 K king /usr/lib/x86_64-linux-gnu/hud/hud-service
2289 -12.0 K 16.8 K 16.8 K 16.8 K king init
2409 0.0 B 819.2 B 819.2 B 819.2 B king /usr/lib/ibus/ibus-ui-gtk3
2384 -409.6 B 409.6 B 409.6 B 409.6 B king /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
13120 0.0 B 0.0 B 0.0 B 2048.0 B king ./smemstat
6152 0.0 B -250.4 K -250.4 K -250.4 K king /usr/lib/thunderbird/thunderbird
Total: -12.4 K 1649.2 K 1649.3 K 1651.6 K
PID Swap USS PSS RSS User Command
6152 -7372.8 B 198.8 K 198.8 K 198.8 K king /usr/lib/thunderbird/thunderbird
2289 0.0 B 409.6 B 409.6 B 409.6 B king init
7146 0.0 B 0.0 B 204.8 B 409.6 B king mumble
2596 0.0 B 0.0 B 204.8 B 409.6 B king /usr/bin/pulseaudio
2670 0.0 B -19.2 K -19.2 K -19.2 K king compiz
7513 0.0 B -2927.6 K -2927.6 K -2927.6 K king /usr/lib/firefox/firefox
Total: -7372.8 B -2747.6 K -2747.2 K -2746.8 K
PID Swap USS PSS RSS User Command
7070 0.0 B 14.8 K 14.8 K 14.8 K king gnome-terminal
6988 0.0 B 0.0 B 204.8 B 0.0 B king xchat-gnome
6152 0.0 B -243.2 K -255.3 K -279.6 K king /usr/lib/thunderbird/thunderbird
7513 0.0 B -378.4 K -376.5 K -382.0 K king /usr/lib/firefox/firefox
Total: 0.0 B -606.8 K -616.8 K -646.8 K
PID Swap USS PSS RSS User Command
6152 -819.2 B 619.6 K 619.6 K 619.6 K king /usr/lib/thunderbird/thunderbird
7513 -1228.8 B 542.0 K 542.0 K 542.0 K king /usr/lib/firefox/firefox
2474 0.0 B 66.4 K 66.4 K 66.4 K king /usr/lib/unity/unity-panel-service
2459 0.0 B 28.8 K 28.8 K 28.8 K king /usr/lib/x86_64-linux-gnu/hud/hud-service
7070 0.0 B 12.4 K 12.4 K 12.4 K king gnome-terminal
2289 -5734.4 B 7372.8 B 7372.8 B 7372.8 B king init
2670 0.0 B 6553.6 B 6553.6 B 6553.6 B king compiz
2409 -1638.4 B 2048.0 B 2048.0 B 2048.0 B king /usr/lib/ibus/ibus-ui-gtk3
Total: -9420.8 B 1284.8 K 1284.8 K 1284.8 K
PID Swap USS PSS RSS User Command
6152 -409.6 B 1557.6 K 1557.6 K 1557.6 K king /usr/lib/thunderbird/thunderbird
2459 0.0 B 106.0 K 106.0 K 106.0 K king /usr/lib/x86_64-linux-gnu/hud/hud-service
2289 -7782.4 B 10.4 K 10.4 K 10.4 K king init
2670 0.0 B 3276.8 B 3276.8 B 3276.8 B king compiz
2384 -1228.8 B 1228.8 B 1228.8 B 1228.8 B king /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
7513 0.0 B -190.0 K -190.0 K -190.0 K king /usr/lib/firefox/firefox
Total: -9420.8 B 1488.4 K 1488.4 K 1488.4 K
Current snapshot of memory usage, report in megabytes, strip off leading directory path off command and also output results into a json formatted file:
sudo ./smemstat -dm -o smemstats.json
PID Swap USS PSS RSS User Command
7513 33240 218624 220649 226780 king firefox
6152 52936 161804 163568 169300 king thunderbird
1245 260 76196 79209 83228 root X
2459 6692 48924 49410 51916 king hud-service
2474 10140 42716 43563 47496 king unity-panel-service
2670 77108 33596 35170 40984 king compiz
7070 3492 13608 14640 19516 king gnome-terminal
7146 17272 10612 12486 16828 king mumble
2289 18776 11008 11070 12092 king init
3118 41636 9724 9790 11104 king python
6988 8716 7388 8402 13016 king xchat-gnome
2763 18240 6180 7425 11664 king nautilus
10262 0 4240 4535 5736 king bash
2596 1460 3728 4129 5516 king pulseaudio
1256 0 3664 3717 5324 root accounts-daemon
2409 2532 3500 3623 5648 king ibus-ui-gtk3
2372 2556 3404 3441 4712 king ibus-daemon
2455 6440 3236 3398 5732 king unity-settings-daemon
2287 1688 3128 3193 4512 king gnome-keyring-daemon
1199 44 3120 3145 4436 root lightdm
1153 1400 3060 3085 3884 root libvirtd
2748 5276 2552 2950 5660 king nm-applet
1141 300 2640 2786 4308 whoopsie whoopsie
1613 0 2728 2781 4376 root upowerd
2384 11212 2448 2533 4504 king bamfdaemon
897 0 2428 2474 3924 root polkitd
2810 0 2340 2411 3988 root udisksd
6786 0 2304 2314 2984 root dhclient
6790 0 2300 2310 2980 root dhclient
869 2168 2024 2155 4004 root NetworkManager
2535 3960 2012 2095 3744 king indicator-sound-service
13277 0 1588 1718 2836 root sudo
2349 840 1604 1708 2408 king dbus-daemon
1 244 1596 1654 2632 root init
2542 300 1556 1606 3216 king indicator-session-service
470 208 1412 1517 2280 messagebus dbus-daemon
2516 3840 1436 1491 3372 king indicator-keyboard-service
1250 12 1308 1352 2084 root wpa_supplicant
2802 796 1300 1345 2748 king gvfs-udisks2-volume-monitor
2892 0 1324 1336 2116 root cupsd
2469 2848 1268 1318 3112 king gnome-session
1583 28 1244 1272 2472 root lightdm
3067 7356 1108 1177 2612 king zeitgeist-datahub
2530 2676 1088 1135 2704 king indicator-datetime-service
822 72 1124 1131 1828 root ModemManager
3730 73668 892 1028 2584 king unity-control-center
615 4 1016 1023 1572 syslog rsyslogd
1171 0 944 970 1920 root cups-browsed
3016 856 824 955 2456 king mission-control-5
8219 2488 688 951 2036 king bash
2740 2084 900 931 2584 king unity-fallback-mount-helper
5495 11968 880 917 2276 king unity-scope-loader
3501 384 852 906 2444 king gvfsd-http
5486 4744 864 905 2248 king unity-scope-home
3072 2584 700 893 2328 king zeitgeist-daemon
5497 1608 800 875 2396 king unity-files-daemon
546 0 668 722 1832 root thermald
3275 2568 664 721 2164 king update-notifier
649 912 692 703 1520 colord colord
2739 2256 648 673 2204 king polkit-gnome-authentication-agent-1
2363 376 320 646 1820 king window-stack-bridge
2647 4296 592 638 1932 king notify-osd
2524 272 576 621 2200 king indicator-power-service
2522 368 592 618 1984 king indicator-messages-service
2457 392 592 614 1836 king ibus-engine-simple
474 360 604 610 1232 root systemd-udevd
1009 512 592 605 956 root upstart-file-bridge
573 28 580 600 1540 root systemd-logind
2388 184 476 518 1960 king gvfsd
460 56 476 498 1028 root upstart-udev-bridge
3332 2568 464 491 1788 king deja-dup-monitor
2565 780 432 468 1876 king indicator-application-service
2854 628 428 446 1500 king gvfsd-trash
1873 0 436 441 1032 root unity-greeter-session-broadcast-service
2422 304 320 422 1336 king dbus-daemon
2404 420 400 419 1636 king ibus-dconf
1131 356 392 417 1176 root sshd
3010 4892 400 415 1576 king telepathy-indicator
2539 5336 392 410 1612 king indicator-printers-service
638 156 368 387 1184 avahi avahi-daemon: running [lenovo.local]
2399 2472 364 386 1636 king gvfsd-fuse
2826 1460 324 358 1424 king gconfd-2
1208 8 344 346 784 kernoops kerneloops
2075 0 300 343 1156 nobody dnsmasq
1016 264 324 331 684 root upstart-socket-bridge
2639 36028 308 329 1416 king evolution-calendar-factory
3078 832 300 313 1400 king zeitgeist-fts
2061 0 252 292 804 libvirt-dn dnsmasq
1146 4 284 288 684 root irqbalance
1352 68 264 278 784 root acpid
1686 0 252 259 940 rtkit rtkit-daemon
13278 0 228 246 912 root smemstat
2431 436 232 246 1268 king at-spi2-registryd
2400 128 224 243 788 king upstart-file-bridge
2394 192 184 205 640 king upstart-dbus-bridge
1138 96 184 199 812 root cron
2407 92 152 173 604 king upstart-dbus-bridge
1084 0 164 171 836 root getty
1505 0 160 167 832 root getty
1074 0 160 167 832 root getty
2359 92 148 166 968 king upstart-event-bridge
1087 0 152 159 824 root getty
1083 0 152 159 824 root getty
7020 1232 100 135 1052 king sd_espeak
7016 480 100 133 976 king sd_cicero
7013 488 96 129 964 king sd_dummy
7010 496 96 129 964 king sd_generic
7079 64 112 119 688 king gnome-pty-helper
2566 1148 112 119 900 king indicator-sync-service
572 200 84 89 624 root bluetoothd
2417 1684 64 72 836 king ibus-x11
2831 2728 64 70 752 king gvfs-afc-volume-monitor
1139 132 48 49 208 root atd
1069 0 40 41 48 gitlog svlogd
2603 1208 24 29 636 king dconf-service
1065 0 28 29 36 root runsvdir
1067 0 24 25 32 root runsv
1070 148 8 15 572 gitdaemon git-daemon
2361 2776 8 13 620 king url-dispatcher
2844 2836 4 11 732 king gvfs-gphoto2-volume-monitor
2840 2652 4 11 728 king gvfs-mtp-volume-monitor
2568 4988 4 11 724 king evolution-source-registry
1066 160 4 11 676 root getty
3189 532 4 10 672 king unity-webapps-service
2877 2608 4 10 676 king gvfsd-metadata
2864 640 4 10 692 king gvfsd-burn
2523 636 4 10 708 king indicator-bluetooth-service
2405 628 4 10 700 king at-spi-bus-launcher
7025 244 4 9 452 king speech-dispatcher
3089 92 4 8 440 king cat
641 248 4 5 156 avahi avahi-daemon: chroot helper
2342 308 4 4 80 king ssh-agent
Total: 546700 742172 762814 929280
Note: Memory reported in units of megabytes.
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