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2011-03-30
, 02:13
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Posts: 2,014 |
Thanked: 1,581 times |
Joined on Sep 2009
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#2
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Originally Posted by Ayle
This topic has been discussed in detail, along with several possible solutions in quite a few threads. Search is your friend.
Hi, my question is in the title: why does heavy io on the emmc murder the responsiveness of the phone? For example if you download a torrent on mydocs, the phone is basically unusable until it's done or you remove the battery to tunr it off. Or when apt- is updating, the phone is unusable there too....
I have this old piii 700mhz with 192mb of ram running ubuntu 6.10 and i could be torrenting and copying files and generally hammering the hard drive without the thing looking like it just froze... What gives?
Start here.
http://talk.maemo.org/showthread.php...highlight=tune
__________________
Class .. : Power Poster, Potential Coder
Humor .. : [*********] Alignment: Chaotic Evil
Patience : [***-------] Weapon(s): +2 Logic Mace
Agro ... : |*****-----] Relic(s) : G1, N900
Class .. : Power Poster, Potential Coder
Humor .. : [*********] Alignment: Chaotic Evil
Patience : [***-------] Weapon(s): +2 Logic Mace
Agro ... : |*****-----] Relic(s) : G1, N900
Last edited by Bratag; 2011-03-30 at 02:15.
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2011-03-30
, 03:26
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Posts: 196 |
Thanked: 113 times |
Joined on Jun 2010
@ Finland
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#3
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I hated it when it just froze when copying lots of files between mmc and emmc or restoring backups. Installed http://talk.maemo.org/showthread.php?t=69973 and it hasn't completely frozen since.
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2011-03-30
, 07:02
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Posts: 1,425 |
Thanked: 983 times |
Joined on May 2010
@ Hong Kong
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#4
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Originally Posted by Ayle
Performance does not solely rely on clock speed, especially for multi-tasking system. ARM is designed for low-power devices such that throttling mechanisms are in place to minimize power consumption. The system would run at much less optimal performance at high load.
Hi, my question is in the title: why does heavy io on the emmc murder the responsiveness of the phone? For example if you download a torrent on mydocs, the phone is basically unusable until it's done or you remove the battery to tunr it off. Or when apt- is updating, the phone is unusable there too....
I have this old piii 700mhz with 192mb of ram running ubuntu 6.10 and i could be torrenting and copying files and generally hammering the hard drive without the thing looking like it just froze... What gives?
Also, in a multi-tasking environment, fast switching memory and swap space is required. The serializing nature of flash memory is especially bad for mulit-tasking under high load for normal cpu-bound tasks, least i/o bound tasks.
So, don't push your N900 too hard.
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2011-03-30
, 07:23
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Posts: 162 |
Thanked: 64 times |
Joined on Mar 2011
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#5
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my N900 reboots sometimes due to heavy IO, it's really annoying, it corrupted an easy debian image and did other bad stuff
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2011-03-30
, 07:31
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Posts: 1,425 |
Thanked: 983 times |
Joined on May 2010
@ Hong Kong
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#6
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Originally Posted by JadeH
IIRC your N900 is new and that shouldn't be normal. Do you have SmartReflex on?
my N900 reboots sometimes due to heavy IO, it's really annoying, it corrupted an easy debian image and did other bad stuff
Code:
cat /sys/power/sr_vdd1_autocomp cat /sys/power/sr_vdd2_autocomp
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2011-03-30
, 07:48
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Posts: 162 |
Thanked: 64 times |
Joined on Mar 2011
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#7
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yeah I've had it with 2 different devices, both would do it anyway weither smartreflex was on or off
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2011-03-30
, 07:56
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Banned |
Posts: 358 |
Thanked: 160 times |
Joined on Dec 2010
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#8
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Originally Posted by JadeH
I think there is something terrible wrong with Linux but the problem with all this tweaks and patches is that this device is using vfat for disks and the vfat driver is extremely buggy. You want to repartition the device with ext3.
yeah I've had it with 2 different devices, both would do it anyway weither smartreflex was on or off
Last edited by epitaph; 2011-03-30 at 08:10.
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2011-03-30
, 07:57
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Posts: 1,425 |
Thanked: 983 times |
Joined on May 2010
@ Hong Kong
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#9
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Originally Posted by JadeH
I'd avoid turning them on in any circumstance.
yeah I've had it with 2 different devices, both would do it anyway weither smartreflex was on or off
BTW, you'd like to try disable off mode to see if it helps in your case:
Code:
echo 0 > /sys/power/enable_off_mode
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2011-03-30
, 08:02
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Banned |
Posts: 358 |
Thanked: 160 times |
Joined on Dec 2010
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#10
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Originally Posted by 9000
Are you serious? You can tell her to switch on R&D mode and switch off watchdog, too. It has the same effect.
I'd avoid turning them on in any circumstance.
BTW, you'd like to try disable off mode to see if it helps in your case:
Code:echo 0 > /sys/power/enable_off_mode
I have this old piii 700mhz with 192mb of ram running ubuntu 6.10 and i could be torrenting and copying files and generally hammering the hard drive without the thing looking like it just froze... What gives?