[SOLVED] Performance issue with EOG affecting Cinnamon?

shnplr · Post by **shnplr** » Sun Jun 14, 2015 7:49 am

Hi,

Using Image Viewer (EOG) to view slideshow Cinnamon memory usage has started increasing with the size of the images viewed.
e.g.
- right now: Cinnamon memory 888.5 MiB
- double click 32MB zip (open with with archive manager). zip file is accessed on local nas (synology)
- select-all, open-with ImageViewer
- click slideshow...wait 75 x 5secs
- end: Cinnamon memory 925.9 MiB

Clicking through images manually (using Next):
- about every 1-2 file the system freezes for a few seconds at 100 %CPU (normally super fast off the HDD)
- seems to freeze at different points i.e. sometimes Image Viewer displays "opening file in /home/me/.cache" etc in status bar for a long time...

Running 'top' during freeze:
(info captured as soon as system started responding and I could focus terminal and hit ctrl-z)

Code: Select all

PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND     
 2608 me        20   0 2456740 986.5m  64072 R  39.6 25.0  36:47.06 cinnamon    
13627 me        20   0  694924 126944  45092 R  31.9  3.1   0:14.59 eog         
13602 me        20   0  703132  61960  16448 R  31.3  1.5   0:17.63 file-roller 
 9124 me        20   0  597960  55908  15236 R  30.6  1.4   0:50.46 gedit       
 2818 me        20   0  483356  42308   6568 S  27.6  1.0   2:35.65 gvfsd-rece+ 
 2616 me        20   0 1341216 103216  27336 R  20.3  2.6   3:12.37 nemo        
 1697 root      20   0  333304 134460  93848 S   6.7  3.3  20:47.91 Xorg        
 8049 me        20   0 1641132 456804  51484 R   6.0 11.3  17:07.97 firefox     
 6559 me        20   0  492936  33208  21548 R   5.0  0.8  11:23.00 gnome-syst+ 
  989 message+  20   0   40000   2076    968 S   0.3  0.1   0:00.58 dbus-daemon 
 2562 root      20   0  445548   5792   3260 S   0.3  0.1   0:06.13 udisksd     
 7271 me        20   0 3553420 552632  24188 S   0.3 13.7   2:18.77 java        
    1 root      20   0   34100   3152   1264 S   0.0  0.1   0:01.25 init        
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kthreadd    
    3 root      20   0       0      0      0 S   0.0  0.0   0:00.21 ksoftirqd/0 
    5 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:+ 
    7 root      20   0       0      0      0 S   0.0  0.0   0:25.08 rcu_sched

While pressing 'next' (as continuously as possible), Cinnamon hovers around 65-75% CPU, EOG 10-30%, file-roller 20-30%. On taking a breath, Cinnamon jumps to 80-95% for another second or 2 then drops back to 4% CPU.

Code: Select all

Cinnamon 2.4.8
Linux Mint 17.1 Rebecca
3.13.0-37-generic x86_64 (64 bit) 
Dual core Intel Core2 Duo CPU E8400 (-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 ssse3 vmx) bmips: 11970.8 
1: 2000.00 MHz 2: 2000.00 MHz
NVIDIA G84GL [Quadro FX 1700]
X.Org: 1.15.1 drivers: nvidia (unloaded: fbdev,vesa,nouveau) Resolution: 1680x1050@59.9hz 
GLX Renderer: Quadro FX 1700/PCIe/SSE2 GLX Version: 3.3.0 NVIDIA 331.113 Direct Rendering: Yes

Any ideas/suggestions or other things to check much appreciated

Thanks,
Paul

p.s. Cinnamon is now 1.0GiB

Buzzsaw · Post by **Buzzsaw** » Sun Jun 14, 2015 11:28 am

Why not extract the files first, and then open them?

shnplr · Post by **shnplr** » Sun Jun 14, 2015 7:02 pm

It doesn't matter if I copy the zip from NAS to HDD before opening or create a temp folder on HDD and extract the files and open them there as you suggested. It seems to be something relating to processing images - the zip/nas is incidental I think.

shnplr · Post by **shnplr** » Mon Jun 15, 2015 7:58 am

I'm not exactly sure what fixed the problem, but I've done

1. upgraded to Cinnamon 2.6.7
2. emptied trash
3. changed some settings in nemo preview

So now I can cycle through images via Image Viewer as fast as I can click or hold down the right arrow key - i.e. its back to normal - whereas previously my system froze for approx 3-4 seconds between each image.

I observed on boot Cinnamon memory started around 200MB and grew rapidly to 700MB while cycling through files. At 700MB Cinnamon memory has stopped increasing and I've cycle through about 500 more 256-512K jpegs without any further memory increase.

I'll update this post if anything changes.

Although in nemo preview settings when updating "Show text in icons" from always to never all my desktop icons suddenly disappeared:
syslog: kernel: [ 4731.124688] nemo[3030]: segfault at 1e ip 00007f3a080c9d3e sp 00007fff7bb25808 error 4 in libc-2.19.so[7f3a08032000+1bb000]

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