Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Linux, Unix › CentOS 7 ridiculously sluggish
New Posts  All Forums:Forum Nav:

CentOS 7 ridiculously sluggish

post #1 of 4
Thread Starter 
I installed CentOS 7 (with Gnome 3) on an older machine with a dual-core Pentium (Core2 based) and 2GB RAM, but it's annoyingly sluggish. Moving and resizing windows is slightly laggy and the animation choppy, and in general applications are a bit slow to start up and respond. Even on idle, both cores are at around 10% CPU usage. It gets orders of magnitude worse with IO - I started untarring files off an external NTFS drive, the write speed around 30MB/s according to iotop which is isn't even close to the maximum the hard drive on the computer can do. This would make the system behave much as if it were heavily swapping, with alt-tabbing between applications taking several seconds and the mouse pointer frequently freezing. However, memory usage usually sits around 500-700MB, and has never gone over 1GB, with swap usage at around ~15MB (out of 3.5GB).

I've already tried the kernel-ml kernel from repoel and enabling desktop profile on tuned-adm, but neither seems to be making a difference. What else can I do? None of this happened when the exact same machine with the exact same configuration ran Mint (17), it ran beautifully.
post #2 of 4
Thread Starter 
I switched to Xfce, it's noticeably faster (under Gnome, Xorg CPU usage during IO would jump to around 15% which made no sense to me at all), but still more sluggish than Mint was (with Cinnamon), still getting weird slowdowns when the HD is being accessed.
post #3 of 4
What's the GPU? Sounds like you need a 2D based WM like openbox, i3, or something. Also, there might be something wrong with the FUSE driver in your install (though unlikely). But, NTFS stuff has always required a little more CPU for me, just nothing like what you're describing.
     
CPUGraphicsRAMHard Drive
Intel Core m3-6Y30 Intel HD515 8GB 1866DDR3L Micron M600 MTFDDAV256MBF M.2, 256 GB 
CoolingOSOSMonitor
Fanless Win10 Home x64 Kubuntu 16.04 (requires Linux kernel 4.5/4.6) 13.3 inch 16:9, 1920x1080 pixel, AU Optronics A... 
CPUMotherboardGraphicsRAM
AthlonIIX4 640 3.62GHz (250x14.5) 2.5GHz NB Asus M4A785TD-M EVO MSI GTX275 (Stock 666) 8GBs of GSkill 1600 
RAMHard DriveHard DriveHard Drive
4GBs of Adata 1333 Kingston HyperX 3k 120GB WD Caviar Black 500GB Hitachi Deskstar 1TB 
Optical DriveCoolingOSOS
LG 8X BDR (WHL08S20) Cooler Master Hyper 212+ Kubuntu x64 Windows 7 x64 
OSMonitorPowerCase
Bodhi Linux x64 Acer G215H (1920x1080) Seasonic 520 HAF912 
CPUMotherboardGraphicsRAM
N450 1.8GHz AC and 1.66GHz batt ASUS proprietary for 1001P GMA3150 (can play bluray now!?) 1GB DDR2 
Hard DriveOptical DriveOSOS
160GB LGLHDLBDRE32X Bodhi Linux Fedora LXDE 
OSOSMonitorKeyboard
Kubuntu SLAX 1280x600 + Dell 15inch Excellent! 
PowerCase
6 cells=6-12hrs and a charger 1001P MU17 Black 
  hide details  
Reply
     
CPUGraphicsRAMHard Drive
Intel Core m3-6Y30 Intel HD515 8GB 1866DDR3L Micron M600 MTFDDAV256MBF M.2, 256 GB 
CoolingOSOSMonitor
Fanless Win10 Home x64 Kubuntu 16.04 (requires Linux kernel 4.5/4.6) 13.3 inch 16:9, 1920x1080 pixel, AU Optronics A... 
CPUMotherboardGraphicsRAM
AthlonIIX4 640 3.62GHz (250x14.5) 2.5GHz NB Asus M4A785TD-M EVO MSI GTX275 (Stock 666) 8GBs of GSkill 1600 
RAMHard DriveHard DriveHard Drive
4GBs of Adata 1333 Kingston HyperX 3k 120GB WD Caviar Black 500GB Hitachi Deskstar 1TB 
Optical DriveCoolingOSOS
LG 8X BDR (WHL08S20) Cooler Master Hyper 212+ Kubuntu x64 Windows 7 x64 
OSMonitorPowerCase
Bodhi Linux x64 Acer G215H (1920x1080) Seasonic 520 HAF912 
CPUMotherboardGraphicsRAM
N450 1.8GHz AC and 1.66GHz batt ASUS proprietary for 1001P GMA3150 (can play bluray now!?) 1GB DDR2 
Hard DriveOptical DriveOSOS
160GB LGLHDLBDRE32X Bodhi Linux Fedora LXDE 
OSOSMonitorKeyboard
Kubuntu SLAX 1280x600 + Dell 15inch Excellent! 
PowerCase
6 cells=6-12hrs and a charger 1001P MU17 Black 
  hide details  
Reply
post #4 of 4
I had this issue when I was working with a CentoOS 7 server. Mine was a virtual machine running on a ESXI hyper visor though. I ended up just going to 6.6.

Sounds like it could be a driver issue from what you are describing.

is there anyway to confirm this is not some failing hardware?
I have had situations in the past were i had faulty hardware such as a dying hard drive even though it was new.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Linux, Unix
Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Linux, Unix › CentOS 7 ridiculously sluggish