Cinnamon causes high CPU usage after a while

[nardj]

I recently upgraded to Sylvia. Since then about half an hour after booting, my computer becomes intermittently unresponsive (each 10 seconds or so). Looking at the System Monitor I see a spike in CPU usage (100%) occurring each time. Using 'htop' I get VIRT:2802M, RES:1013M, SHR:79660, CPU:67.9%; MEM 12,8%

A temporary fix is restarting Cinnamon, but this only lasts 20 minutes. Below my system specs. Anyone have the same problem and possibly a real fix?

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System:    Host: Firefly Kernel: 4.13.0-39-generic x86_64 (64 bit)
           Desktop: Cinnamon 3.6.7  Distro: Linux Mint 18.3 Sylvia
Machine:   System: Gigabyte product: B250M-D2V v: Default string
           Mobo: Gigabyte model: B250M-D2V-CF v: x.x
           Bios: American Megatrends v: F6 date: 07/06/2017
CPU:       Quad core Intel Core i5-7600K (-MCP-) cache: 6144 KB 
           clock speeds: max: 4200 MHz 1: 800 MHz 2: 800 MHz 3: 800 MHz
           4: 800 MHz
Graphics:  Card: NVIDIA Device 1c81
           Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
           Resolution: 2560x1080@60.00hz
           GLX Renderer: GeForce GTX 1050/PCIe/SSE2
           GLX Version: 4.5.0 NVIDIA 384.111
Audio:     Card-1 Intel Device a2f0 driver: snd_hda_intel
           Card-2 NVIDIA Device 0fb9 driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.13.0-39-generic
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169
           IF: enp3s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 1120.2GB (13.0% used)
           ID-1: /dev/sda model: WDC_WDS120G1G0A size: 120.0GB
           ID-2: /dev/sdb model: WDC_WD10EZEX size: 1000.2GB
Partition: ID-1: / size: 30G used: 13G (45%) fs: ext4 dev: /dev/sda2
           ID-2: /home size: 459G used: 110G (26%) fs: ext4 dev: /dev/sdb2
           ID-3: swap-1 size: 16.00GB used: 0.00GB (0%) fs: swap dev: /dev/sdb1
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 55C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 192 Uptime: 33 min Memory: 2384.1/7937.4MB
           Client: Shell (sh) inxi: 2.2.35 

[Hoser Rob]

If you switch the system monitor to application view you can sort them by CPU usage and find out what's using that much.

[nardj]

Well top of the list is Cinnamon --replace. If I kill this process it is gone for a minute of 10 and then it returns. Any ideas how to troubleshoot this further?

[JosephM]

Are you running any spices installed from the cinnamon spices site? If so, disable them and try again.