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2009-04-04
, 11:03
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Posts: 86 |
Thanked: 9 times |
Joined on Jan 2008
@ Berlin, Germany
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#2
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Do you mean the cpu of the n810? if so run top in terminal and post what is using the cpu?
ps- I find using ssh much easier that having to plug wires in (you can use fireftp on firefox for an easy ssftp client)
ps- I find using ssh much easier that having to plug wires in (you can use fireftp on firefox for an easy ssftp client)
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2009-04-04
, 12:29
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Posts: 3,404 |
Thanked: 4,474 times |
Joined on Oct 2005
@ Germany
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#3
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This is not normal and sounds as if the memory card is very slow. Are you copying to the built-in memory card, or do you use an external one?
Maybe the card is corrupt and causes a lot of read-errors, resulting in slowness and high CPU usage because of constant retrying.
Maybe the card is corrupt and causes a lot of read-errors, resulting in slowness and high CPU usage because of constant retrying.
| The Following User Says Thank You to pycage For This Useful Post: | ||
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2009-04-05
, 06:36
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Posts: 2 |
Thanked: 0 times |
Joined on Apr 2009
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#4
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Thanks for your responses..
@pycage: Its to a new memory card which I put into the N810. I dont have a card reader to test it independently of the N810, but I do have another memory card that I could borrow and try to rule out the card.. I'll do that today and see if it makes any difference.
@xopher_mc: Yep I mean the CPU on the n810. I've done what you suggested, and this is what I've come up with:
When its not doing anything:
When I'm copying a file from my laptop to the N810 via USB, to mmc2 (my memory card in the N810 - not the built in one)
I'm getting only 1.2MB/second, and the results of top are:
So I can see its not maxing out the CPU.. I thought it was based on the load-applet which showed 100% (not sure why).. but still the 1.2MB/s speed is very annoying. Any ideas if the results of top indicate a problem?
Thanks!
@pycage: Its to a new memory card which I put into the N810. I dont have a card reader to test it independently of the N810, but I do have another memory card that I could borrow and try to rule out the card.. I'll do that today and see if it makes any difference.
@xopher_mc: Yep I mean the CPU on the n810. I've done what you suggested, and this is what I've come up with:
When its not doing anything:
Code:
Mem: 124632K used, 2164K free, 0K shrd, 16696K buff, 37884K cached Load average: 0.85 0.45 0.19 PID USER STATUS VSZ PPID %CPU %MEM COMMAND 800 root SW< 11436 351 6.0 9.0 Xomap 1166 user SW< 68408 1086 5.2 53.8 maemo-launcher 14859 root RW 1960 14845 2.3 1.5 top 82 root SW< 0 6 0.3 0.0 OMAP McSPI/0 1057 root SW< 0 6 0.1 0.0 file-storage-ga 846 user SW< 95784 351 0.0 75.4 osso-media-serv 13057 user SW 67660 1354 0.0 53.2 browserd 1354 user SW 40856 1 0.0 32.1 browserd 1023 user SW 35236 1 0.0 27.7 gnome-vfs-daemo 1291 user SW< 32104 1086 0.0 25.2 maemo-launcher 1114 user SW< 31436 1086 0.0 24.7 maemo-launcher 953 systemui SW< 26236 351 0.0 20.6 systemui
I'm getting only 1.2MB/second, and the results of top are:
Code:
Mem: 124712K used, 2084K free, 0K shrd, 22572K buff, 32204K cached Load average: 1.17 0.69 0.32 PID USER STATUS VSZ PPID %CPU %MEM COMMAND 1057 root SW< 0 6 30.6 0.0 file-storage-ga 1166 user SW< 68408 1086 8.5 53.8 maemo-launcher 8680 root SW< 0 6 7.2 0.0 mmcqd 800 root SW< 11436 351 6.5 9.0 Xomap 14924 root RW 1960 14845 2.2 1.5 top 119 root SW< 0 6 0.7 0.0 kswapd0 14837 root SW 6036 966 0.5 4.7 sshd 82 root SW< 0 6 0.5 0.0 OMAP McSPI/0 289 root SW< 0 6 0.5 0.0 kondemand/0 408 root SW< 0 6 0.3 0.0 cx3110x 846 user SW< 95784 351 0.0 75.4 osso-media-serv 13057 user SW 67660 1354 0.0 53.2 browserd 1354 user SW 40856 1 0.0 32.1 browserd 1023 user SW 35236 1 0.0 27.7 gnome-vfs-daemo 1291 user SW< 32104 1086 0.0 25.2 maemo-launcher 1114 user SW< 31436 1086 0.0 24.7 maemo-launcher
Thanks!
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2009-04-05
, 10:35
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Posts: 3,319 |
Thanked: 5,610 times |
Joined on Aug 2008
@ Finland
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#5
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Originally Posted by rdurant
Depends on protocol. For example if you download/copy via SSH you *will* max your CPU out. If you copy the same file with ftp, the transfer rate won't be considerably different, but will have only 20-25% CPU use.
Downloading files using the N810 off the internet also results in the CPU running very high. Does anyone have the same experience, or is this not normal?
As for USB, the speed of the card comes into play, and also take into account that the data is transferred twice - from the computer to the NIT (and USB is not too CPU friendly to boot, this is what you see in top), and from the NIT to the flash (and this one is not visible readily through top). Also, any running applications are not helping you either. If you really want to copy large amounts of data, I'd recommend taking the card out and writing to it directly. In my case that's a sustained 1.5MB/s versus 17MB/s difference.
| The Following User Says Thank You to attila77 For This Useful Post: | ||
Downloading files using the N810 off the internet also results in the CPU running very high. Does anyone have the same experience, or is this not normal?
Thanks!