笔记本电脑：华硕 Sonic Master E4003S，4 GB RAM
问题：升级到 Ubuntu Budgie 19.10 后，速度大幅下降。机器需要 310 秒（= 5 分 10 秒）才能响应任何点击或击键。光标冻结；键盘无响应。检查日志以获取见解。
内核日志错误：
perf: interrupt took too long (10512 > 9967), lowering kernel.perf_event_max_sample_rate to 19000
对于@heynnema......
free -h：
total used free shared buff/cache available
Mem: 3.7Gi 2.2Gi 182Mi 545Mi 1.4Gi 758Mi
Swap: 3.9Gi 223Mi 3.7Gi
sudo lshw -C memory：
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: E403SA.300
date: 06/01/2016
size: 64KiB
capacity: 6MiB
capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification uefi
*-memory
description: System Memory
physical id: a
slot: System board or motherboard
size: 4GiB
*-bank:0
description: DIMM DDR3 1600 MHz (0.6 ns)
product: HMT425S6CFR6A-PB
vendor: Hynix Semiconduc
physical id: 0
serial: 00000000
slot: A1_DIMM0
size: 2GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:1
description: DIMM DDR3 1600 MHz (0.6 ns)
product: Array1_PartNumber1
vendor: A1_Manufacturer1
physical id: 1
serial: A1_SerNum1
slot: A1_DIMM1
size: 2GiB
width: 16 bits
clock: 1600MHz (0.6ns)
*-cache:0
description: L1 cache
physical id: 11
slot: CPU Internal L1
size: 224KiB
capacity: 224KiB
capabilities: internal write-back
configuration: level=1
*-cache:1
description: L2 cache
physical id: 12
slot: CPU Internal L2
size: 2MiB
capacity: 2MiB
capabilities: internal write-back unified
configuration: level=2