我在一台旧的戴尔 Inspiron 9400 笔记本电脑上只安装了 Ubuntu 12.04，运行良好……大约一个月。现在它似乎可以强行完成主流任务。它可能是一台旧笔记本电脑，但无论我使用哪种浏览器，我都可以毫无问题地使用大约 5 个浏览器选项卡。它似乎经常冻结。当我关闭所有内容时，似乎没有太多活动（只有系统监视器打开，但一切正常）。我尝试了 free -m 命令，这是它的输出
total used free shared buffers cached
Mem: 1001 745 255 0 24 366
-/+ buffers/cache: 355 646
Swap: 1020 1 1019
除了尝试全新安装之外，是否知道为什么它会变得如此缓慢以及应该做些什么？
--更新-- 硬件列表
description: Portable Computer
product: MP061 ()
vendor: Winbond Electronics
serial: 5T78L2J
width: 32 bits
configuration: boot=normal chassis=portable uuid=44454C4C-5400-1037-8038-B5C04F4C324A *-core
description: Motherboard
product: 0YD479
vendor: Winbond Electronics
physical id: 0
serial: .5T78L2J.CN129616AD3842.
*-firmware
description: BIOS
vendor: Winbond Electronics
physical id: 0
version: A04
date: 09/29/2006
size: 64KiB
capacity: 512KiB
capabilities: isa pci pcmcia pnp upgrade shadowing cdboot bootselect int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb agp smartbattery biosbootspecification netboot
*-cpu
description: CPU
product: Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz
vendor: Intel Corp.
physical id: 400
bus info: cpu@0
version: 6.15.6
serial: 0000-06F6-0000-0000-0000-0000
slot: Microprocessor
size: 1333MHz
capacity: 2130MHz
width: 64 bits
clock: 166MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow cpufreq
configuration: cores=2 enabledcores=2 id=0 threads=2
*-cache:0
description: L1 cache
physical id: 700
size: 32KiB
capacity: 32KiB
capabilities: internal write-back data
*-cache:1
description: L2 cache
physical id: 701
size: 2MiB
capacity: 2MiB
clock: 66MHz (15.0ns)
capabilities: pipeline-burst internal varies unified
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
width: 64 bits
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
width: 64 bits
capabilities: logical
*-memory
description: System Memory
physical id: 1000
slot: System board or motherboard
size: 1GiB
*-bank:0
description: DIMM DDR Synchronous 533 MHz (1.9 ns)
product: NT512T64UH8B0FN-37
vendor: Nanya Technology
physical id: 0
serial: 96223A31
slot: DIMM_A
size: 512MiB
width: 64 bits
clock: 533MHz (1.9ns)
*-bank:1
description: DIMM DDR Synchronous 533 MHz (1.9 ns)
product: NT512T64UH8B0FN-37
vendor: Nanya Technology
physical id: 1
serial: 1DE87810
slot: DIMM_B
size: 512MiB
width: 64 bits
clock: 533MHz (1.9ns)
*-pci
description: Host bridge
product: Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 03
width: 32 bits
clock: 33MHz
*-pci:0
description: PCI bridge
product: Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:40 ioport:e000(size=4096) memory:efd00000-efefffff ioport:d0000000(size=268435456)
*-display
description: VGA compatible controller
product: RV515/M54 [Mobility Radeon X1400]
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:16 memory:d0000000-dfffffff ioport:ee00(size=256) memory:efdf0000-efdfffff memory:efe00000-efe1ffff
*-multimedia
description: Audio device
product: NM10/ICH7 Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:44 memory:efffc000-efffffff
*-pci:1
description: PCI bridge
product: NM10/ICH7 Family PCI Express Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:41 ioport:2000(size=4096) memory:40000000-401fffff ioport:40200000(size=2097152)
*-pci:2
description: PCI bridge
product: NM10/ICH7 Family PCI Express Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:42 ioport:3000(size=4096) memory:efc00000-efcfffff ioport:40400000(size=2097152)
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0c:00.0
logical name: wlan0
version: 02
serial: 00:18:de:a5:73:66
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 driverversion=3.8.0-36-generic firmware=15.32.2.9 ip=192.168.192.40 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
resources: irq:45 memory:efcff000-efcfffff
*-pci:3
description: PCI bridge
product: NM10/ICH7 Family PCI Express Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:43 ioport:d000(size=4096) memory:efa00000-efbfffff ioport:e0000000(size=2097152)
*-usb:0
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:20 ioport:bf80(size=32)
*-usb:1
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #2
vendor: Intel Corporation
physical id: 1d.1
bus info: pci@0000:00:1d.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:21 ioport:bf60(size=32)
*-usb:2
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #3
vendor: Intel Corporation
physical id: 1d.2
bus info: pci@0000:00:1d.2
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:22 ioport:bf40(size=32)
*-usb:3
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #4
vendor: Intel Corporation
physical id: 1d.3
bus info: pci@0000:00:1d.3
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:23 ioport:bf20(size=32)
*-usb:4
description: USB controller
product: NM10/ICH7 Family USB2 EHCI Controller
vendor: Intel Corporation
physical id: 1d.7
bus info: pci@0000:00:1d.7
version: 01
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:20 memory:ffa80000-ffa803ff
*-pci:4
description: PCI bridge
product: 82801 Mobile PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: pci@0000:00:1e.0
version: e1
width: 32 bits
clock: 33MHz
capabilities: pci subtractive_decode bus_master cap_list
resources: memory:ef900000-ef9fffff
*-network
description: Ethernet interface
product: BCM4401-B0 100Base-TX
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:15:c5:55:78:a8
size: 10Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=half latency=64 link=no multicast=yes port=twisted pair speed=10Mbit/s
resources: irq:17 memory:ef9fe000-ef9fffff
*-firewire
description: FireWire (IEEE 1394)
product: R5C832 IEEE 1394 Controller
vendor: Ricoh Co Ltd
physical id: 1
bus info: pci@0000:03:01.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm ohci bus_master cap_list
configuration: driver=firewire_ohci latency=64 maxlatency=4 mingnt=2
resources: irq:19 memory:ef9fd800-ef9fdfff
*-generic:0
description: SD Host controller
product: R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter
vendor: Ricoh Co Ltd
physical id: 1.1
bus info: pci@0000:03:01.1
version: 19
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=sdhci-pci latency=64
resources: irq:18 memory:ef9fd500-ef9fd5ff
*-generic:1
description: System peripheral
product: R5C592 Memory Stick Bus Host Adapter
vendor: Ricoh Co Ltd
physical id: 1.2
bus info: pci@0000:03:01.2
version: 0a
width: 32 bits
clock: 33MHz
capabilities: pm cap_list
configuration: driver=r592 latency=0
resources: irq:18 memory:ef9fd600-ef9fd6ff
*-generic:2
description: System peripheral
product: xD-Picture Card Controller
vendor: Ricoh Co Ltd
physical id: 1.3
bus info: pci@0000:03:01.3
version: 05
width: 32 bits
clock: 33MHz
capabilities: pm cap_list
configuration: driver=r852 latency=0
resources: irq:18 memory:ef9fd700-ef9fd7ff
*-isa
description: ISA bridge
product: 82801GBM (ICH7-M) LPC Interface Bridge
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-ide
description: IDE interface
product: 82801GBM/GHM (ICH7-M Family) SATA Controller [IDE mode]
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 01
width: 32 bits
clock: 66MHz
capabilities: ide pm bus_master cap_list
configuration: driver=ata_piix latency=0
resources: irq:17 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:bfa0(size=16)
*-serial UNCLAIMED
description: SMBus
product: NM10/ICH7 Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 01
width: 32 bits
clock: 33MHz
configuration: latency=0
resources: ioport:10c0(size=32)
*-scsi:0
physical id: 1
logical name: scsi0
capabilities: emulated
*-disk
description: ATA Disk
product: TOSHIBA MK1234GS
vendor: Toshiba
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sda
version: AH00
serial: X6LTT9P8T
size: 111GiB (120GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 signature=0002ef81
*-volume:0
description: EXT4 volume
vendor: Linux
physical id: 1
bus info: scsi@0:0.0.0,1
logical name: /dev/sda1
logical name: /
version: 1.0
serial: 0714fe2d-ac7a-4346-9215-28a3f34d140d
size: 29GiB
capacity: 29GiB
capabilities: primary bootable journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
configuration: created=2013-11-10 22:07:53 filesystem=ext4 lastmountpoint=/ modified=2013-11-22 14:36:32 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2014-02-28 17:41:20 state=mounted
*-volume:1
description: Extended partition
physical id: 2
bus info: scsi@0:0.0.0,2
logical name: /dev/sda2
size: 1021MiB
capacity: 1021MiB
capabilities: primary extended partitioned partitioned:extended
*-logicalvolume
description: Linux swap / Solaris partition
physical id: 5
logical name: /dev/sda5
capacity: 1021MiB
capabilities: nofs
*-volume:2
description: Windows NTFS volume
physical id: 3
bus info: scsi@0:0.0.0,3
logical name: /dev/sda3
version: 3.1
serial: 09b8-b67c
size: 81GiB
capacity: 81GiB
capabilities: primary ntfs initialized
configuration: clustersize=4096 created=2013-11-19 18:09:11 filesystem=ntfs state=clean
*-scsi:1
physical id: 2
logical name: scsi1
capabilities: emulated
*-cdrom
description: DVD writer
product: DVD+-RW ND-6650A
vendor: _NEC
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
version: 102C
serial: [
capabilities: removable audio cd-r cd-rw dvd dvd-r
configuration: ansiversion=5 status=nodisc *-battery
product: DELL 00
vendor: GW�
physical id: 1
slot: Sys. Battery Bay
capacity: 66000mWh
configuration: voltage=11.1V
答案1
看起来您没有足够的交换或内存来让应用程序正常运行，希望可以通过增加交换空间的大小来改善这种情况。
关于交换规模应该有多大，人们有不同的看法，但以下是Fedora 64 位文档 （找不到 Ubuntu...有一个，我很久以前就找到它了...）：
因此，您需要将交换空间至少设置为 RAM 大小的两倍，如果要允许冬眠。因此，您需要至少有3000兆字节大小的交换空间
要真正增加交换空间的大小，您不必重新安装，您应该能够找到一些答案这里。