Lubuntu: laptop abnormally slow
Solution 1
As strange as it may seem, what solved the problem for me was installing Compiz on top of Lubuntu.
I have an old Acer Aspire 5670 with a dedicated 512Mb ATI video card, and since ATI dropped support for their native driver in Linux, I've been struggling for years until the community released a good-enough open source driver.
What happened with Lubuntu was that it wasn't using the video card at all - and rendering all UI on CPU. Compiz immediately solved this problem. I use wobbly windows and some cool effects, and it performs WAY better (and even more stable) than a crude Lxde.
=== EDIT ===
I've gained even more performance by using metacity instead. It seems to use the available resources provided by my video card correctly, but it's lighter and more stable than Compiz.
So, if you want to try a dead-simple way to boost your Lubuntu, just do:
sudo apt-get install metacity
Then set it as the default window manager: go to Preferences->Default applications for LXSession->Core applications
and set "metacity" in the "Window Manager" field (instead of openbox).
Now you can save, then log out and log back in to activate it. Or, if you don't want to restart, just type metacity --replace & 2>&1
in a terminal to activate it instantly.
=== EDIT 2 ===
You can improve it even further by decreasing swapiness to 10.
Solution 2
Open a terminal. issue the command
free
This will provide you with output that looks like this
usage is at top of picture.
If swap usage is high this may be why your system is slow. Many laptops have slower hard drives 4200-5400 RPM in order to use less power and increase battery life. since swap is typical on a partition on the drive and often at the tail end where performance is worst this can cause poor performance. Also if the drive is beginning to fail, it will automatically retry several times to read difficult to read data, causing further delays.
If power levels are low, many laptops will also reduce CPU speed (power mangement).
Options to increase performance are many and the right answer varies with identifying where the bottleneck actually is.
1) If the drive is slow you may wish to replace it with a faster one (say 7200 RPM).
2)If the drive is failing you should replace it, again if a faster one than the original is available you may wish to go that route.
3)SSD's are much faster than HDD's. (with seek times at a small fraction of a millisecond) This is also an option. Adding more RAM to your laptop may also be a possibility.
free also provides info on the amount of RAM installed and if your laptop supports more you could
4)Install more RAM which would result in less swapping to disk which will also help performance.
Note that all of these options also apply to desktop systems.
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Augustin Riedinger
Start-up enthusiast Web developer. Focusing on Ruby-on-Rails and Javascript essentially. In love with React. Check my portfolio for more info: https://augustin-riedinger.fr
Updated on September 18, 2022Comments
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Augustin Riedinger over 1 year
My laptop is pretty new (less than a year) and has decent specs, but since 1/2 months it gets really slow even if I do things I could easily do before (development + browsing).
This makes it unusable and it is especially disappointing because:
- my laptop could handle these tasks earlier and
- I installed Lubuntu because I wanted to focus on performance and don't care about UI
And my questions are:
How can I make sure I don't have a background program eating all my resources?
I especially suspect my processor to under-use its capacities. How can I know about that too?
Is there a chance it is a bug in my current distribution (Lubuntu 13.10) that could be solved with 14.04? (I kind of suspect the bad performances to have arisen when upgrading to 13.04).
If it is a hardware defect, I can I know about it?
Here is the report generated by
System profiler and Benchmark
:Computer Summary Computer Processor 4x Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz Memory 3947MB (3224MB used) Operating System Ubuntu 13.10 User Name augustin (augustin) Date/Time mer. 09 avril 2014 18:25:02 CEST Display Resolution 1600x900 pixels OpenGL Renderer Unknown X11 Vendor The X.Org Foundation Multimedia Audio Adapter HDA-Intel - HDA Intel PCH Input Devices Lid Switch Power Button Sleep Button AT Translated Set 2 keyboard USB2.0 VGA Webcam Asus WMI hotkeys ETPS/2 Elantech Touchpad Video Bus HDA Intel PCH HDMI/DP,pcm 3= HDA Intel PCH Headphone HDA Intel PCH Mic Printers (CUPS) HP-Officejet-7400-series Default Photosmart_B010 Photosmart_B010_2 SCSI Disks ATA SanDisk SSD U100 Generic- xD/SD/M.S. Operating System Version Kernel Linux 3.11.0-19-generic (x86_64) Compiled #33-Ubuntu SMP Tue Mar 11 18:48:34 UTC 2014 C Library Unknown Default C Compiler GNU C Compiler version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu9) Distribution Ubuntu 13.10 Current Session Computer Name sempiternel User Name augustin (augustin) Home Directory /home/augustin Desktop Environment LXDE (Lubuntu) Misc Uptime 18 hours, 59 minutes Load Average 0,00, 0,00, 0,00 Kernel Modules Loaded Modules pci_stub vboxpci Oracle VM VirtualBox PCI access Driver vboxnetadp Oracle VM VirtualBox Network Adapter Driver vboxnetflt Oracle VM VirtualBox Network Filter Driver vboxdrv Oracle VM VirtualBox Support Driver zram Compressed RAM Block Device parport_pc PC-style parallel port driver ppdev rfcomm Bluetooth RFCOMM ver 1.11 bnep Bluetooth BNEP ver 1.3 binfmt_misc snd_hda_codec_hdmi HDMI HD-audio codec snd_hda_codec_realtek Realtek HD-audio codec joydev Joystick device interfaces x86_pkg_temp_thermal X86 PKG TEMP Thermal Driver intel_powerclamp Package Level C-state Idle Injection for Intel CPUs coretemp Intel Core temperature monitor kvm_intel kvm crct10dif_pclmul T10 DIF CRC calculation accelerated with PCLMULQDQ. crc32_pclmul ghash_clmulni_intel GHASH Message Digest Algorithm, acclerated by PCLMULQDQ-NI aesni_intel Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized aes_x86_64 Rijndael (AES) Cipher Algorithm, asm optimized lrw LRW block cipher mode gf128mul Functions for multiplying elements of GF(2^128) glue_helper ablk_helper cryptd Software async crypto daemon ath3k Atheros AR30xx firmware driver btusb Generic Bluetooth USB driver ver 0.6 bluetooth Bluetooth Core ver 2.16 asus_nb_wmi Asus Notebooks WMI Hotkey Driver asus_wmi Asus Generic WMI Driver sparse_keymap Generic support for sparse keymaps uvcvideo USB Video Class driver videobuf2_vmalloc vmalloc memory handling routines for videobuf2 videobuf2_memops common memory handling routines for videobuf2 videobuf2_core Driver helper framework for Video for Linux 2 videodev Device registrar for Video4Linux drivers v2 arc4 ARC4 Cipher Algorithm ath9k Support for Atheros 802.11n wireless LAN cards. ath9k_common Shared library for Atheros wireless 802.11n LAN cards. ath9k_hw Support for Atheros 802.11n wireless LAN cards. snd_hda_intel Intel HDA driver snd_hda_codec HDA codec core snd_hwdep Hardware dependent layer ath Shared library for Atheros wireless LAN cards. snd_pcm Midlevel PCM code for ALSA. snd_page_alloc Memory allocator for ALSA system. snd_seq_midi Advanced Linux Sound Architecture sequencer MIDI synth. snd_seq_midi_event MIDI byte <-> sequencer event coder snd_rawmidi Midlevel RawMidi code for ALSA. mac80211 IEEE 802.11 subsystem rts5139 Realtek RTS5139/29 USB card reader driver snd_seq Advanced Linux Sound Architecture sequencer. cfg80211 wireless configuration support snd_seq_device ALSA sequencer device management snd_timer ALSA timer interface microcode Microcode Update Driver psmouse PS/2 mouse driver i915 Intel Graphics serio_raw Raw serio driver lpc_ich LPC interface for Intel ICH drm_kms_helper DRM KMS helper mac_hid snd Advanced Linux Sound Architecture driver for soundcards. mei_me Intel(R) Management Engine Interface drm DRM shared core routines mei Intel(R) Management Engine Interface soundcore Core sound module wmi ACPI-WMI Mapping Driver i2c_algo_bit I2C-Bus bit-banging algorithm video ACPI Video Driver option USB Driver for GSM modems usb_wwan USB Driver for GSM modems usbserial USB Serial Driver core lp parport ahci AHCI SATA low-level driver libahci Common AHCI SATA low-level routines Boots Boots Tue Apr 8 2:25 33..11.0-19-generi|- Tue Apr 8 2:24 33..11.0-19-generi|- Tue Apr 8 2:34 33..11.0-19-generi|- Tue Apr 8 1:02 33..11.0-19-generi|- Tue Apr 8 0:28 33..11.0-18-generi|- Tue Apr 8 0:01 33..11.0-18-generi|- Mon Apr 7 1:03 33..11.0-18-generi|- Sun Apr 6 2:15 33..11.0-18-generi|- Thu Apr 3 2:45 33..11.0-18-generi|- Thu Apr 3 2:37 33..11.0-18-generi|- Thu Apr 3 0:20 33..11.0-18-generi|- Thu Apr 3 0:10 33..11.0-18-generi|- Wed Apr 2 1:50 33..11.0-18-generi|- Tue Apr 1 2:51 33..11.0-18-generi|- Tue Apr 1 1:22 33..11.0-18-generi|- Tue Apr 1 1:09 33..11.0-18-generi|- Tue Apr 1 1:08 33..11.0-18-generi|- Tue Apr 1 1:08 33..11.0-18-generi|- Tue Apr 1 0:36 33..11.0-18-generi|- Tue Apr 1 0:49 33..11.0-18-generi|- Languages Available Languages en_AG English language locale for Antigua and Barbuda en_AG.utf8 English language locale for Antigua and Barbuda en_AU.utf8 English locale for Australia en_BW.utf8 English locale for Botswana en_CA.utf8 English locale for Canada en_DK.utf8 English locale for Denmark en_GB.utf8 English locale for Britain en_HK.utf8 English locale for Hong Kong en_IE.utf8 English locale for Ireland en_IN English language locale for India en_IN.utf8 English language locale for India en_NG English locale for Nigeria en_NG.utf8 English locale for Nigeria en_NZ.utf8 English locale for New Zealand en_PH.utf8 English language locale for Philippines en_SG.utf8 English language locale for Singapore en_US.utf8 English locale for the USA en_ZA.utf8 English locale for South Africa en_ZM English locale for Zambia en_ZM.utf8 English locale for Zambia en_ZW.utf8 English locale for Zimbabwe fr_BE.utf8 French locale for Belgium fr_CA.utf8 French locale for Canada fr_CH.utf8 French locale for Switzerland fr_FR.utf8 French locale for France fr_LU.utf8 French locale for Luxemburg Filesystems Mounted File Systems /dev/sda2 / 86,25 % (15,1 GiB of 109,9 GiB) none /sys/fs/cgroup 0,00 % (4,0 KiB of 4,0 KiB) udev /dev 0,00 % (1,9 GiB of 1,9 GiB) tmpfs /run 0,28 % (384,4 MiB of 385,5 MiB) none /run/lock 0,00 % (5,0 MiB of 5,0 MiB) none /run/shm 2,51 % (1,8 GiB of 1,9 GiB) none /run/user 0,03 % (100,0 MiB of 100,0 MiB) Display Display Resolution 1600x900 pixels Vendor The X.Org Foundation Version 1.14.5 Monitors Monitor 0 1600x900 pixels Extensions BIG-REQUESTS Composite DAMAGE DOUBLE-BUFFER DPMS DRI2 GLX Generic Event Extension MIT-SCREEN-SAVER MIT-SHM RANDR RECORD RENDER SECURITY SGI-GLX SHAPE SYNC X-Resource XC-MISC XFIXES XFree86-DGA XFree86-VidModeExtension XINERAMA XInputExtension XKEYBOARD XTEST XVideo OpenGL Vendor Unknown Renderer Unknown Version Unknown Direct Rendering No Environment Variables Environment Variables USER augustin LANGUAGE fr_FR UPSTART_INSTANCE XDG_SEAT seat0 TEXTDOMAIN im-config SSH_AGENT_PID 1457 SESSION Lubuntu HOME /home/augustin DESKTOP_SESSION Lubuntu XDG_SEAT_PATH /org/freedesktop/DisplayManager/Seat0 INSTANCE DBUS_SESSION_BUS_ADDRESS unix:abstract=/tmp/dbus-jfsbk0sTSw MANDATORY_PATH /usr/share/gconf/Lubuntu.mandatory.path IM_CONFIG_PHASE 1 SESSIONTYPE lxsession UPSTART_JOB lxsession LOGNAME augustin DEFAULTS_PATH /usr/share/gconf/Lubuntu.default.path XDG_SESSION_ID c2 PATH /usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games GDM_LANG fr_FR XDG_SESSION_PATH /org/freedesktop/DisplayManager/Session0 XDG_RUNTIME_DIR /run/user/1000 DISPLAY :0 LANG fr_FR.UTF-8 XAUTHORITY /home/augustin/.Xauthority SSH_AUTH_SOCK /tmp/ssh-tQb03q64JLd2/agent.1452 SHELL /bin/zsh NODE_PATH /usr/lib/nodejs:/usr/lib/node_modules:/usr/share/javascript GDMSESSION Lubuntu UPSTART_EVENTS started xsession TEXTDOMAINDIR /usr/share/locale/ UPSTART_SESSION unix:abstract=/com/ubuntu/upstart-session/1000/1358 XDG_VTNR 7 PWD /home/augustin XDG_CONFIG_DIRS /etc/xdg/lubuntu:/etc/xdg:/etc/xdg/xdg-Lubuntu:/usr/share/upstart/xdg:/etc/xdg XDG_DATA_DIRS /etc/xdg/lubuntu:/usr/local/share:/usr/share:/usr/share/gdm:/var/lib/menu-xdg:/etc/xdg/xdg-Lubuntu:/usr/share/upstart/xdg:/etc/xdg JOB dbus XDG_CURRENT_DESKTOP LXDE _LXSESSION_PID 1477 XDG_MENU_PREFIX lxde- SAL_USE_VCLPLUGIN gtk XDG_CONFIG_HOME /home/augustin/.config Users Users root root daemon daemon bin bin sys sys sync sync games games man man lp lp mail mail news news uucp uucp proxy proxy www-data www-data backup backup list Mailing List Manager irc ircd gnats Gnats Bug-Reporting System (admin) nobody nobody libuuid syslog messagebus usbmux usbmux daemon dnsmasq dnsmasq ntp whoopsie lightdm Light Display Manager augustin augustin pulse PulseAudio daemon rtkit RealtimeKit postgres PostgreSQL administrator avahi Avahi mDNS daemon mapbox MapBox system user couchdb CouchDB Administrator memcache Memcached saned Devices Processor Processors Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz 1701,00MHz Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz 1701,00MHz Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz 1600,00MHz Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz 1701,00MHz Memory Memory Total Memory 3947240 kB Free Memory 129840 kB Buffers 9908 kB Cached 602272 kB Cached Swap 925048 kB Active 2083128 kB Inactive 959920 kB Active(anon) 2010676 kB Inactive(anon) 895780 kB Active(file) 72452 kB Inactive(file) 64140 kB Unevictable 0 kB Mlocked 0 kB Virtual Memory 9785708 kB Free Virtual Memory 7224180 kB Dirty 80 kB Writeback 0 kB AnonPages 2166272 kB Mapped 141020 kB Shmem 475588 kB Slab 82140 kB SReclaimable 39600 kB SUnreclaim 42540 kB KernelStack 5280 kB PageTables 69612 kB NFS_Unstable 0 kB Bounce 0 kB WritebackTmp 0 kB CommitLimit 11759328 kB Committed_AS 10360736 kB VmallocTotal 34359738367 kB VmallocUsed 359556 kB VmallocChunk 34359368572 kB HardwareCorrupted 0 kB AnonHugePages 0 kB HugePages_Total 0 HugePages_Free 0 HugePages_Rsvd 0 HugePages_Surp 0 Hugepagesize 2048 kB DirectMap4k 66592 kB DirectMap2M 4028416 kB PCI Devices PCI Devices Host bridge Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) VGA compatible controller Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Communication controller Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) Audio device Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) PCI bridge Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode]) PCI bridge Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) (prog-if 00 [Normal decode]) PCI bridge Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) (prog-if 00 [Normal decode]) USB controller Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI]) ISA bridge Intel Corporation QS67 Express Chipset Family LPC Controller (rev 05) SATA controller Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) SMBus Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) Network controller Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) USB controller Fresco Logic FL1009 USB 3.0 Host Controller (rev 02) (prog-if 30 [XHCI]) USB Devices Printers Printers (CUPS) HP-Officejet-7400-series Default Photosmart_B010 Photosmart_B010_2 Battery No batteries No batteries found on this system Sensors Input Devices Input Devices Lid Switch Power Button Sleep Button AT Translated Set 2 keyboard USB2.0 VGA Webcam Asus WMI hotkeys ETPS/2 Elantech Touchpad Video Bus HDA Intel PCH HDMI/DP,pcm 3= HDA Intel PCH Headphone HDA Intel PCH Mic Storage SCSI Disks ATA SanDisk SSD U100 Generic- xD/SD/M.S. DMI BIOS Date 01/20/2012 Vendor American Megatrends Inc. (www.ami.com) Version UX31E.211 Board Name UX31E Vendor ASUSTeK Computer Inc. (SEAGATE, www.seagate.com) Resources I/O Ports 0000-0cf7 PCI Bus 0000:00 0000-001f dma1 0020-0021 pic1 0040-0043 timer0 0050-0053 timer1 0060-0060 keyboard 0062-0062 EC data 0064-0064 keyboard 0066-0066 EC cmd 0070-0077 rtc0 0080-008f dma page reg 00a0-00a1 pic2 00c0-00df dma2 00f0-00ff fpu 0240-0259 pnp 00:07 0400-0403 ACPI PM1a_EVT_BLK 0404-0405 ACPI PM1a_CNT_BLK 0408-040b ACPI PM_TMR 0410-0415 ACPI CPU throttle 0420-042f ACPI GPE0_BLK 0430-0433 iTCO_wdt 0450-0450 ACPI PM2_CNT_BLK 0454-0457 pnp 00:06 0458-047f pnp 00:04 0460-047f iTCO_wdt 0500-057f pnp 00:04 0680-069f pnp 00:04 0cf8-0cff PCI conf1 0d00-ffff PCI Bus 0000:00 1000-100f pnp 00:04 164e-164f pnp 00:04 b000-bfff PCI Bus 0000:03 c000-cfff PCI Bus 0000:02 d000-dfff PCI Bus 0000:01 e000-e03f Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) e040-e05f Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) e060-e07f Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) e060-e07f AHCI SATA low-level driver e080-e083 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) e080-e083 AHCI SATA low-level driver e090-e097 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) e090-e097 AHCI SATA low-level driver e0a0-e0a3 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) e0a0-e0a3 AHCI SATA low-level driver e0b0-e0b7 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) e0b0-e0b7 AHCI SATA low-level driver ffff-ffff pnp 00:04 ffff-ffff pnp 00:04 Memory 00000000-00000fff reserved 00001000-0009e7ff System RAM 0009e800-0009ffff reserved 000a0000-000bffff PCI Bus 0000:00 000c0000-000ce7ff Video ROM 000d0000-000d3fff PCI Bus 0000:00 000d4000-000d7fff PCI Bus 0000:00 000d8000-000dbfff PCI Bus 0000:00 000dc000-000dffff PCI Bus 0000:00 000e0000-000fffff reserved 000e0000-000e3fff PCI Bus 0000:00 000e4000-000e7fff PCI Bus 0000:00 000f0000-000fffff System ROM 00100000-1fffffff System RAM 01000000-016fcdc6 Kernel code 016fcdc7-01d0eeff Kernel data 01e6e000-01fd0fff Kernel bss 20000000-201fffff reserved 20000000-201fffff pnp 00:0c 20200000-3fffffff System RAM 40000000-401fffff reserved 40000000-401fffff pnp 00:0c 40200000-ba883fff System RAM ba884000-ba9e9fff reserved ba9ea000-bac0bfff System RAM bac0c000-bad95fff reserved bad96000-bad96fff System RAM bad97000-bade7fff reserved bade8000-bae33fff System RAM bae34000-bafe7fff ACPI Non-volatile Storage bafe8000-baffcfff System RAM baffd000-baffffff ACPI Tables bb000000-bfffffff reserved c0000000-feafffff PCI Bus 0000:00 c0000000-cfffffff Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) d0000000-d09fffff PCI Bus 0000:03 d0b00000-d14fffff PCI Bus 0000:02 d1600000-d1ffffff PCI Bus 0000:01 d2000000-d2000fff pnp 00:0b ddc00000-ddffffff Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) de000000-de9fffff PCI Bus 0000:03 de000000-de00ffff Fresco Logic FL1009 USB 3.0 Host Controller (rev 02) (prog-if 30 [XHCI]) de000000-de00ffff xhci_hcd de010000-de010fff Fresco Logic FL1009 USB 3.0 Host Controller (rev 02) (prog-if 30 [XHCI]) de011000-de011fff Fresco Logic FL1009 USB 3.0 Host Controller (rev 02) (prog-if 30 [XHCI]) dea00000-df3fffff PCI Bus 0000:02 dea00000-dea7ffff Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) dea00000-dea7ffff Support for Atheros 802.11n wireless LAN cards. dea80000-dea8ffff Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) df400000-dfdfffff PCI Bus 0000:01 dfe00000-dfe03fff Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) dfe00000-dfe03fff ICH HD audio dfe05000-dfe050ff Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) dfe06000-dfe067ff Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) dfe06000-dfe067ff AHCI SATA low-level driver dfe07000-dfe073ff Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI]) dfe07000-dfe073ff ehci_hcd dfe09000-dfe0900f Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) dfe09000-dfe0900f Intel(R) Management Engine Interface e0000000-e3ffffff PCI MMCONFIG 0000 [bus 00-3f] e0000000-e3ffffff reserved e0000000-e3ffffff pnp 00:0a fec00000-fec00fff reserved fec00000-fec003ff IOAPIC 0 fed00000-fed003ff HPET 0 fed10000-fed13fff reserved fed18000-fed19fff reserved fed18000-fed18fff pnp 00:0a fed19000-fed19fff pnp 00:0a fed1c000-fed1ffff reserved fed1c000-fed1ffff pnp 00:0a fed1f410-fed1f414 iTCO_wdt fed20000-fed3ffff pnp 00:0a fed40000-fed44fff PCI Bus 0000:00 fed45000-fed8ffff pnp 00:0a fed90000-fed90fff dmar0 fed91000-fed91fff dmar1 fee00000-fee00fff Local APIC fee00000-fee00fff reserved ff980000-ffbfffff reserved ffd80000-ffffffff reserved 100000000-13f7fffff System RAM 13f800000-13fffffff RAM buffer DMA 4 cascade Network Interfaces Network Interfaces lo 75,26MiB 75,26MiB 127.0.0.1 wlan0 2523,84MiB 313,60MiB 192.168.10.11 IP Connections Connections 127.0.0.1:11211 0.0.0.0:* udp 0.0.0.0:80 LISTEN 0.0.0.0:* tcp 127.0.1.1:53 0.0.0.0:* udp 0.0.0.0:3030 LISTEN 0.0.0.0:* tcp 127.0.0.1:631 LISTEN 0.0.0.0:* tcp 0.0.0.0:3000 LISTEN 0.0.0.0:* tcp 127.0.0.1:5432 ESTABLISHED 127.0.0.1:49925 tcp 0.0.0.0:17500 0.0.0.0:* udp 127.0.0.1:5984 LISTEN 0.0.0.0:* tcp 0.0.0.0:59396 0.0.0.0:* udp 127.0.0.1:49923 ESTABLISHED 127.0.0.1:5432 tcp 192.168.10.11:58455 ESTABLISHED 213.199.179.142:40019 tcp 127.0.0.1:5432 ESTABLISHED 127.0.0.1:49925 tcp 192.168.10.11:50182 ESTABLISHED 54.216.68.238:80 tcp 192.168.10.11:53368 ESTABLISHED 75.126.166.165:443 tcp 127.0.0.1:58744 ESTABLISHED 127.0.0.1:5432 tcp 192.168.10.11:49359 ESTABLISHED 54.82.95.91:443 tcp 127.0.0.1:5432 ESTABLISHED 127.0.0.1:49925 tcp 192.168.10.11:43315 ESTABLISHED 198.252.206.25:443 tcp 192.168.10.11:57247 ESTABLISHED 173.194.40.117:443 tcp 127.0.0.1:49924 ESTABLISHED 127.0.0.1:5432 tcp 127.0.0.1:49925 ESTABLISHED 127.0.0.1:5432 tcp 192.168.10.11:57446 ESTABLISHED 157.56.116.210:12350 tcp 192.168.10.11:49708 CLOSE_WAIT 54.216.68.238:80 tcp 192.168.10.11:53765 ESTABLISHED 74.125.132.125:5222 tcp 192.168.10.11:39499 ESTABLISHED 54.246.129.89:443 tcp 192.168.10.11:41080 ESTABLISHED 198.252.206.25:443 tcp 192.168.10.11:58682 ESTABLISHED 173.194.34.50:443 tcp 192.168.10.11:53568 ESTABLISHED 93.184.221.96:443 tcp 192.168.10.11:43023 ESTABLISHED 157.56.126.41:443 tcp 192.168.10.11:38379 ESTABLISHED 198.252.206.24:80 tcp 192.168.10.11:59728 ESTABLISHED 108.160.162.38:80 tcp 127.0.0.1:5432 ESTABLISHED 127.0.0.1:49925 tcp 192.168.10.11:60463 ESTABLISHED 178.79.152.100:80 tcp 192.168.10.11:60650 ESTABLISHED 173.194.66.189:443 tcp 127.0.0.1:5432 ESTABLISHED 127.0.0.1:49925 tcp 192.168.10.11:35203 ESTABLISHED 54.228.93.133:80 tcp 192.168.10.11:37797 ESTABLISHED 192.168.10.127:17500 tcp 192.168.10.11:49219 ESTABLISHED 54.216.68.238:80 tcp 192.168.10.11:50752 ESTABLISHED 107.20.135.171:443 tcp :::80 LISTEN :::* tcp6 ::1:631 LISTEN :::* tcp6 127.0.0.1:41823 0.0.0.0:* udp 127.0.0.1:11211 0.0.0.0:* udp 0.0.0.0:17500 0.0.0.0:* udp 0.0.0.0:5353 0.0.0.0:* udp 127.0.0.1:50440 ESTABLISHED 127.0.0.1:50440 udp 0.0.0.0:53203 0.0.0.0:* udp 0.0.0.0:59396 0.0.0.0:* udp 127.0.1.1:53 0.0.0.0:* udp 0.0.0.0:68 0.0.0.0:* udp 192.168.10.11:123 0.0.0.0:* udp 127.0.0.1:123 0.0.0.0:* udp 0.0.0.0:123 0.0.0.0:* udp 0.0.0.0:43419 0.0.0.0:* udp :::50401 :::* udp6 :::5353 :::* udp6 fe80::208:caff:fe87:123 :::* udp6 ::1:123 :::* udp6 :::123 :::* udp6 :::57680 :::* udp6 Routing Table IP routing table 0.0.0.0 / 192.168.10.254 0.0.0.0 UG wlan0 192.168.10.0 / 0.0.0.0 255.255.255.0 U wlan0 ARP Table ARP Table 192.168.10.164 78:e4:00:1a:82:49 wlan0 192.168.10.158 24:0a:64:f8:9a:a6 wlan0 192.168.10.127 58:b0:35:63:39:28 wlan0 192.168.10.254 00:90:0b:23:76:36 wlan0 192.168.10.197 b8:e8:56:31:2a:06 wlan0 192.168.10.45 e0:f8:47:19:dc:de wlan0 192.168.10.250 00:11:32:20:e5:e1 wlan0 DNS Servers Name servers 127.0.1.1 Statistics IP 2157697 Paquets reçus au total 0 Paquets arrivant rejetés 3 Avec un protocole inconnu 0 Paquets arrivant rejetés 2147649 Paquets entrants délivrés 1223555 Requêtes envoyées 244 Paquets sortants rejetés 234 Dropped because of missing route ICMP 3539 Messages ICMP reçus 95 Messages ICMP entrant échoués 810 Messages ICMP envoyés 0 Messages ICMP échoués ICMPMSG TCP 15407 Ouvertures de connexions actives 5356 Connexions passives ouvertes 409 Tentatives de connexion échouées 856 Reinitialisation de la connection détéctée 28 Connexions établies 1816595 Segments reçus 1006545 Segments envoyés 10728 Segments retransmis 79 Mauvais segments reçus 2861 Réinitailisations envoyées UDP 358456 Packets reçus 719 Paquets reçus sur un port inconnu 2914 Erreurs de réception de paquet 278795 Paquets envoyés UDPLITE TCPEXT 325 Cookies SYN invalides reçus 24 Resets received for embryonic SYN_RECV sockets 14 Packets pruned from receive queue because of socket buffer overrun 19 Paquets ICMP rejetés par ce qu'ils étaient en dehors de la fenêtre d'acquittement 6994 TCP sockets finished time wait in fast timer 12 DSACKs sent for out of order packets 25961 Accusés de réception envoyés en retard 16 Delayed acks further delayed because of locked socket 16290 Paquets directement mis en attente dans la file d'attente recvmsg. 1 Congestion windows fully recovered without slow start 70095 Bytes directly received in process context from prequeue 1342959 En-têtes de paquets prédits 6 Packets header predicted and directly queued to user 62560 Acknowledgments not containing data payload received 51749 Accusés de réception prédits 1079 Times recovered from packet loss by selective acknowledgements 1 Congestion windows fully recovered without slow start 5 Congestion windows recovered without slow start by DSACK 248 Congestion windows recovered without slow start after partial ack 88 Timeouts after SACK recovery 18 Timeouts in loss state 1422 Fast retransmits 74 SACK retransmits failed 73 Retransmits in slow start 1898 Other TCP timeouts 74 SACK retransmits failed 44 Packets collapsed in receive queue due to low socket buffer 1860 DSACKs sent for old packets 12 DSACKs sent for out of order packets 470 Connections reset due to unexpected data 470 Connections reset due to unexpected data 765 Connections reset due to early user close 314 Connections aborted due to timeout IPEXT Shared Directories SAMBA NFS Benchmarks CPU Blowfish CPU Blowfish This Machine 1701 MHz 4,882 Intel(R) Celeron(R) M processor 1.50GHz (null) 26.1876862 PowerPC 740/750 (280.00MHz) (null) 172.816713 CPU CryptoHash CPU CryptoHash This Machine 1701 MHz 268,035 CPU Fibonacci CPU Fibonacci This Machine 1701 MHz 2,111 Intel(R) Celeron(R) M processor 1.50GHz (null) 8.1375674 PowerPC 740/750 (280.00MHz) (null) 58.07682 CPU N-Queens CPU N-Queens This Machine 1701 MHz 4,818 FPU FFT FPU FFT This Machine 1701 MHz 1,255 FPU Raytracing FPU Raytracing This Machine 1701 MHz 6,594 Intel(R) Celeron(R) M processor 1.50GHz (null) 40.8816714 PowerPC 740/750 (280.00MHz) (null) 161.312647
Thanks a lot for support, I would be really sad to have to change my laptop after less than a year
EDIT: Here's a screenshot of my task manager too. No process goes higher than 6%, but processor can easily reach 100%:
And here are two screenshots taken consecutively:
1."cache memory considered free" unchecked 2."cache memory considered free" checked
1.
2.
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Pavel about 10 yearsStart by checking in System Monitor if any process using abnormally much CPU/RAM.
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joe about 10 yearsIs that memory usage including cache? If not, see if something is taking up too much RAM. Running out of RAM can cause some serious slowdowns.
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Augustin Riedinger about 10 yearsI took two screenshots consecutively with and without including cache.
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Augustin Riedinger about 10 yearsHow can I avoid using too much memory? What could have changed that was not creating those problems before?
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joe about 10 yearsCan you do a screenshot/observation when you are experiencing the problem, and see if anything is using too much CPU or memory?
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Augustin Riedinger about 10 yearsSure. Basically the processor rate is at 100% but all the processuses are at decent rate ~10% max. I think the memory explanation is pretty strong at the moment as each time it happens, my laptop gets really blocked for between 10s and 1 minute, and then it comes back to life pretty smoothly (as if memory management was done ...)
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qubex almost 10 yearsI am experiencing exactly the same problem. I have tracked the issue down to power management (simply because the issue disappears when I plug into a wall socket and doesn't reappear even after I disconnect). Now I have figured this out I recall that the issue arose after in some obscure dialogue box I nonchalantly chose "laptop" rather than "desktop" usage, but I cannot for the world of me recall in which context that dialogue box arose. Does plugging into the power fix your problem? Did you choose a similar option in a configuration box? Can you remember what box it was?
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Augustin Riedinger over 9 yearsThanks for help. I actually ended up reinstalling a new distribution and my laptop became super smooth again. But after 6 months using it, it becomes slow again... I'm more looking for tools to identify processes that slow down my laptop than considering buying more RAM...
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Elder Geek over 9 years
top
leaps to mind.