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| The Following 8 Users Say Thank You to Estel For This Useful Post: | ||
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2012-07-26
, 22:12
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Posts: 958 |
Thanked: 483 times |
Joined on May 2010
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#2
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may also help if you describe a few more things
1. your uptime
2. your usage pattern. from the output, it looks like you use microb quite a bit and don't consume multimedia / audio content very much, no?
so a thumb vs nonthumb memory comparison would need to be with similar uptime and usage patterns to make sense?
just my 2 cents....
1. your uptime
2. your usage pattern. from the output, it looks like you use microb quite a bit and don't consume multimedia / audio content very much, no?
so a thumb vs nonthumb memory comparison would need to be with similar uptime and usage patterns to make sense?
just my 2 cents....
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2012-07-27
, 06:02
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Posts: 2,102 |
Thanked: 1,937 times |
Joined on Sep 2008
@ Berlin, Germany
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#3
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Also i like the general idea to compare 'thumb2 vs. stock', i would suggest to describe the basics (like widgets on the desktops, number of desktops, kernel running, some kind of swap initialization....) to have some ground for the comparison.
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2012-07-27
, 17:26
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Posts: 191 |
Thanked: 415 times |
Joined on Jan 2012
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#4
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I am interested in these results as well.
The test method is very important, though.
Maybe a good and simpler starting point would be a comparison between stock x thumb2 of post-reboot memory footprint of some flagship apps.
For instance, my browserd is reported by
as using 42780. I have not rebooted and I am on standard CSSU testing, with no open windows (I have not checked if browserd is on thumb2, though).
Even better is to use
, as it breaks memory usage of the process and its shared libs.
So we could choose maybe 4 standard apps and post their pmap maps of thumb2 and standard, and that would give a good idea of the differences.
Last edited by caveman; 2012-07-27 at 17:34. Reason: use pmap to map memory
The test method is very important, though.
Maybe a good and simpler starting point would be a comparison between stock x thumb2 of post-reboot memory footprint of some flagship apps.
For instance, my browserd is reported by
Code:
ps aux|grep browserd
Even better is to use
Code:
pmap
So we could choose maybe 4 standard apps and post their pmap maps of thumb2 and standard, and that would give a good idea of the differences.
Last edited by caveman; 2012-07-27 at 17:34. Reason: use pmap to map memory
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2012-07-27
, 17:31
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Posts: 2,292 |
Thanked: 4,135 times |
Joined on Apr 2010
@ UK
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#5
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Thanks for the edit with the code box Estel!
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2012-07-27
, 22:43
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Posts: 1,141 |
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Joined on Dec 2009
@ Magical Unicorn Land
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#6
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I think would be most useful if we're comparing the same configuration, one with thumb and one without.
If someone has a spare N900 and a few hours to kill, I think a good test would be:
- complete reflash including eMMC
- disable HAM auto-updates so it does not run apt worker in background while we're trying to take readings
- install CSSU (regular)
- reboot and take memory readings after X minutes uptime (to allow tracker to settle)
- install CSSU-thumb
- reboot and take memory readings after same X minutes uptime
This way we are comparing same to same.
It just so happens I have a spare N900 and maybe I'll try this if I find a few hours and someone else does not beat me to it.
If someone has a spare N900 and a few hours to kill, I think a good test would be:
- complete reflash including eMMC
- disable HAM auto-updates so it does not run apt worker in background while we're trying to take readings
- install CSSU (regular)
- reboot and take memory readings after X minutes uptime (to allow tracker to settle)
- install CSSU-thumb
- reboot and take memory readings after same X minutes uptime
This way we are comparing same to same.
It just so happens I have a spare N900 and maybe I'll try this if I find a few hours and someone else does not beat me to it.
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2012-07-28
, 00:37
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Posts: 5,028 |
Thanked: 8,613 times |
Joined on Mar 2011
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#7
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Another approach is to compare memory usage of single processes, as this is what thumb2 is about, yep?
We don't care how much of it is swapped or how many widget's one have in desktop - we have list of thumb2 compiled programs available in thumbs repos, and what interest us, is their memory footprint compared to stock (non-thumb) equivalents.
At least, this sound sane for me, or we will drown into hell of non-comparable results. I know that amount of things I've included in data provided via post 1 exceed it - I did it on request, and was kinda sleepy
So, unless someone have points I've missed, proper scientific approach would be to take list of thumb2 compiled programs (from thumb2 repo) and compare memory used (absolute numbers), when they're in use, with non-thumb2 ones. This way, no need for 2 N900's per test's contributor.
/Estel
We don't care how much of it is swapped or how many widget's one have in desktop - we have list of thumb2 compiled programs available in thumbs repos, and what interest us, is their memory footprint compared to stock (non-thumb) equivalents.
At least, this sound sane for me, or we will drown into hell of non-comparable results. I know that amount of things I've included in data provided via post 1 exceed it - I did it on request, and was kinda sleepy
So, unless someone have points I've missed, proper scientific approach would be to take list of thumb2 compiled programs (from thumb2 repo) and compare memory used (absolute numbers), when they're in use, with non-thumb2 ones. This way, no need for 2 N900's per test's contributor.
/Estel
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2012-08-04
, 22:18
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Posts: 1,503 |
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Joined on Oct 2010
@ Denmark
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#8
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Posting here, sorry i didn't see this thread but have limited time and have had for some time, else i would contribute more.
Also updating the numbers now that i have installed some of the last programs, but still less then before since i did not use some of them anyway....
Normal N900 that is now taking a rest:
Running Power50
RAM: 147MB
SWAP: 107MB
Total: 254MB
Other N900 that is now primary:
Running cssu3 Thumb 14
RAM: 124MB
SWAP: 81MB
Total: 205MB
But all in all i have only install the basics and contacts, g.talk and skype running.
So memory usage is subject to change, will properly post again in a month or something
Also updating the numbers now that i have installed some of the last programs, but still less then before since i did not use some of them anyway....
Normal N900 that is now taking a rest:
Running Power50
RAM: 147MB
SWAP: 107MB
Total: 254MB
Other N900 that is now primary:
Running cssu3 Thumb 14
RAM: 124MB
SWAP: 81MB
Total: 205MB
But all in all i have only install the basics and contacts, g.talk and skype running.
So memory usage is subject to change, will properly post again in a month or something
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Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
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N900 DIY Micro Amplifier, turn your N900 into a home stereo
Fix you USB before and after it breaks
Feel free to contact me through PM, Skype or G.Talk
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2012-08-06
, 22:07
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Posts: 1,455 |
Thanked: 3,309 times |
Joined on Dec 2009
@ Rochester, NY
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#9
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Originally Posted by stlpaul
Another option would be to use something like backupmenu to clone an existing unit without -thumb, and then ONLY update one of them. That would let you (after the update and a couple reboots for safe measure) do a true apples to apples comparison, including not only the kernel, but any updated executable that have been compiled for thumb that may be part of the base install and running. (Like browser and the like?)
I think would be most useful if we're comparing the same configuration, one with thumb and one without.
That would, IMHO,be a much cleaner and "fair" comparison, and wouldn't require one to lose the active setup on their day-to-day device.
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2012-08-06
, 22:55
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Joined on Oct 2010
@ Denmark
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#10
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Originally Posted by woody14619
I am thinking about doing this, just need to learn how to use backupmenu.....
Another option would be to use something like backupmenu to clone an existing unit without -thumb, and then ONLY update one of them. That would let you (after the update and a couple reboots for safe measure) do a true apples to apples comparison, including not only the kernel, but any updated executable that have been compiled for thumb that may be part of the base install and running. (Like browser and the like?)
That would, IMHO,be a much cleaner and "fair" comparison, and wouldn't require one to lose the active setup on their day-to-day device.
On another note, my now primary N900 with thumb holds power like crazy, getting close to 48hours and still over 50% left (59%) this is of course with my dual scud, but other N900 would be just about dead now, even if it has only been lightly used.
__________________
N900 @ 850MHz (LV) & 3044mAh Battery
Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
Custom Brightness & No Light Sensor
N900 DIY Micro Amplifier, turn your N900 into a home stereo
Fix you USB before and after it breaks
Feel free to contact me through PM, Skype or G.Talk
N900 @ 850MHz (LV) & 3044mAh Battery
Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
Custom Brightness & No Light Sensor
N900 DIY Micro Amplifier, turn your N900 into a home stereo
Fix you USB before and after it breaks
Feel free to contact me through PM, Skype or G.Talk
Last edited by dr_frost_dk; 2012-08-07 at 16:07.
For a start, here is my non-thumb output, took from device sitting idle for a few hours, without anything (except terminal, for executing measuring commands) opened:
Top:
BloodRose:~# free total used free shared buffers Mem: 235260 213584 21676 0 3520 -/+ buffers: 210064 25196 Swap: 2242552 65136 2177416N900's aluminum backcover / body replacement
-
N900's HDMI-Out
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Camera cover MOD
-
Measure battery's real capacity on-device
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TrueCrypt 7.1 | ereswap | bnf
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Hardware's mods research is costly. To support my work, please consider donating. Thank You!
Last edited by Estel; 2012-07-26 at 21:56.