Running LL2.6.
When viewing the forums anonymously (with the dark theme), my cpu runs hot, cycling between 5% up to 100% CPU usage and the fan runs fast with either Firefox or Chrome browsers. The PC behaves like a fan heater! When I log in, I use the lighter Curve theme as my default and the CPU usage drops to around 15% to 20%. The PC runs cooler and the fan slows down. Other websites seem to run at around 5% CPU, so what is going on in the LL forum and does anyone else have this problem or know the cause or cure?
Edit: High CPU load seems to occur when viewing the forum home page.
(09-27-2015, 11:40 PM)rokytnji link Wrote: [ -> ]Only 11% for me. Try running firefox in safe mode. I am guessing a addon is te culprit here.
http://www.makeuseof.com/tag/how-to-use-...safe-mode/
Thanks, I don't think I have any addons installed but will check later. I have discovered the same problem exists viewing the home page in windows/chrome too but only using the dafault dark theme.
The News Feed does not show in the Curve theme so I guess the changing feed is perhaps the cause.
(09-28-2015, 09:26 AM)justme2 link Wrote: [ -> ]have discovered the same problem exists viewing the home page in windows/chrome too.
In that case, we'd need to see your system specs too. Sounds like you have low end hardware.
(09-28-2015, 09:29 AM)Jerry link Wrote: [ -> ][quote author=justme2 link=topic=2330.msg17642#msg17642 date=1443432397]
have discovered the same problem exists viewing the home page in windows/chrome too.
In that case, we'd need to see your system specs too. Sounds like you have low end hardware.
[/quote]
Windows PC has 2GB ram and 2.66GHz pentium 4 cpu
Netbook has 1GB ram and 1.2GHz Intel atom cpu
My latest finding is that shrinking the News feed panel on the home page reduces the cpu load to a range around 7% to 20% so at least I now know how to keep the CPU cooler!
I also notice higher cpu usage on the forum home page, which corresponds with the changing news feed. I disabled all add ons in chrome and tried with the same results. I am including a screenshot of the resource monitor showing two minutes of forum viewing, the first minute was viewing the home page and the second minute is viewing this topic.
![[Image: o9suhxU.png]](http://i.imgur.com/o9suhxU.png)
This is my hardware info.
Code:
inxi -Fxx
System: Host: AOA150-1777 Kernel: 3.13.0-24-generic i686 (32 bit, gcc: 4.8.2)
Desktop: Xfce 4.11.8 (Gtk 2.24.23) dm: lightdm Distro: Ubuntu 14.04 trusty
Machine: System: Acer product: AOA150 version: 1
Mobo: Acer model: N/A Bios: Acer version: v0.3310 date: 10/06/2008
CPU: Single core Intel Atom CPU N270 (-HT-) cache: 512 KB flags: (nx pae sse sse2 sse3 ssse3) bmips: 3192.03
Clock Speeds: 1: 1600.00 MHz 2: 1600.00 MHz
Graphics: Card: Intel Mobile 945GSE Express Integrated Graphics Controller bus-ID: 00:02.0 chip-ID: 8086:27ae
X.Org: 1.15.1 drivers: intel (unloaded: fbdev,vesa) Resolution: [email protected], [email protected]
GLX Renderer: Mesa DRI Intel 945GME x86/MMX/SSE2 GLX Version: 1.4 Mesa 10.1.3 Direct Rendering: Yes
Audio: Card: Intel NM10/ICH7 Family High Definition Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0 chip-ID: 8086:27d8
Sound: Advanced Linux Sound Architecture ver: k3.13.0-24-generic
Network: Card-1: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller
driver: r8169 ver: 2.3LK-NAPI port: 3000 bus-ID: 02:00.0 chip-ID: 10ec:8136
Card-2: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express)
driver: ath5k bus-ID: 03:00.0 chip-ID: 168c:001c
Drives: HDD Total Size: 410.1GB (26.2% used)
1: id: /dev/sda model: WDC_WD1600BEVT size: 160.0GB serial: WD-WXE908UP2087
2: USB id: /dev/sdb model: FreeAgent_Go size: 250.1GB serial: 2GE20QLB-0:0
Partition: ID: / size: 146G used: 101G (73%) fs: ext4 ID: swap-1 size: 1.06GB used: 0.27GB (25%) fs: swap
RAID: System: supported: N/A
No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Unused Devices: none
Sensors: System Temperatures: cpu: 57.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 169 Uptime: 3:51 Memory: 446.2/988.7MB Runlevel: 2 Gcc sys: 4.8.4
Client: Shell (bash 4.3.11 running in x-terminal-emul) inxi: 1.9.17
Hiding the news feed header solves this problem for me.
Thanks avj, you have provided the evidence I did not have time to prepare, before you posted. The news feed is obviously the cause of problem. In my case it was exacerbated by the fact that I usually kept the home page open and viewed posts in another tab, so the CPU load was always nearly 100% - hence the heat generated. Shrinking the News Feed panel on the home page reduces the cpu loading dramatically.
It appears this is a common issue, not just LL website, just have a
Google around.
Depending on your H/W, you may just never have noticed it...
I do remember on my old PC, with WinXP, Chrome with 6 tabs used to run CPU to 70~80%
I've disabled the fader for now as a test and it has reduced cpu here. How does the news block look?
Looks fine to me. My cpu still goes to about 90% when the feed changes.