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handaxe |
2010-06-21
, 20:45
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Posts: 1,378 |
Thanked: 1,604 times |
Joined on Jun 2010
@ Göteborg, Sweden
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#41
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For the record: http://talk.maemo.org/showpost.php?p...3&postcount=56
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2010-06-23
, 18:57
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Posts: 1,463 |
Thanked: 1,916 times |
Joined on Feb 2008
@ Edmonton, AB
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#42
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I can enable smartreflex on the CPU but it will instantly reboot at any speed greater than 805 mhz.
It doesn't seem to matter which voltage profile i start with in that case.
It's also stable without smartreflex at up to 950mhz using starving profile.
It doesn't seem to matter which voltage profile i start with in that case.
It's also stable without smartreflex at up to 950mhz using starving profile.
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2010-06-23
, 19:11
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Posts: 193 |
Thanked: 92 times |
Joined on May 2010
@ galveston, tx
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#43
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i agree with you Cream.... my N900 also shows same behaviour above 805Mhz.
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2010-06-24
, 15:14
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Posts: 16 |
Thanked: 12 times |
Joined on Apr 2010
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#44
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N900 @ 1000 mhz doesnt like smartreflex..ignore nice load isnt a problem though..
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2010-07-30
, 05:30
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Posts: 142 |
Thanked: 8 times |
Joined on Jul 2010
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#45
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SR will work only for vdd1 ....right???
vdd2 is broken for PR 1.2 as per some reports.....so enabling it wont give you any affect....but it might be the cause for the crashes.....
so i think its better to enable it only for vdd1
vdd2 is broken for PR 1.2 as per some reports.....so enabling it wont give you any affect....but it might be the cause for the crashes.....
so i think its better to enable it only for vdd1
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2010-07-30
, 09:47
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Posts: 21 |
Thanked: 5 times |
Joined on Jul 2010
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#46
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For me also SR make the n900 unstable over 805Mhz, it's ok up to that clock freq. & only if enabled on VDD1. VDD2 SR on will randomly reboot the device.
I'm using titan kernel and my custom voltage/freq profiles.
I'm using titan kernel and my custom voltage/freq profiles.
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2010-11-20
, 13:43
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Posts: 235 |
Thanked: 89 times |
Joined on Oct 2009
@ italy
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#47
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Hi guys, what is (or what means) vdd1(and 2) sr?
thank you
thank you
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If you found my post useful please thank me, I appreciate!
If you found my post useful please thank me, I appreciate!
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2010-11-20
, 15:37
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Posts: 324 |
Thanked: 201 times |
Joined on Apr 2010
@ UK
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#48
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For those who asked why no application had made use of smart reflex, take a look at cpufrequi, it also has options for ignore nice load and using different govenors.
I haven't looked into using any of these for a while so can't remember what was stable and what was not, also i dont think changes made with cpufrequi persist after reboot (not 100% sure though) so imo its a safer way of testing these things
I haven't looked into using any of these for a while so can't remember what was stable and what was not, also i dont think changes made with cpufrequi persist after reboot (not 100% sure though) so imo its a safer way of testing these things
__________________
My N900@1Ghz Rocks
I wanted a phone, but i ended up with an all encompasing obsession
My N900@1Ghz RocksI wanted a phone, but i ended up with an all encompasing obsession
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2010-11-20
, 22:22
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Posts: 1,463 |
Thanked: 1,916 times |
Joined on Feb 2008
@ Edmonton, AB
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#49
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Originally Posted by maemo.it
sr = smart reflex
Hi guys, what is (or what means) vdd1(and 2) sr?
thank you
vdd = voltage (for the domain of...)
1 = mpu (cpu/arm + dsp), 2 = core (the interconnects between subsystems and peripherals)
so if you set sr vdd1 = 1 it means "enable dynamic voltage for mpu"
and it tries to perform continuous dynamic voltage scaling around the nominal operating point voltage according to silicon characteristics and operating conditions but its not going to work if you also overclock it too high.
looks like we might be able to view and modify the voltage tables it's using if we enable "testing mode", take a look here
also found a GOOD document, meaning it actually explains things in ENGLISH here
Last edited by Creamy Goodness; 2010-11-20 at 23:26.
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2010-12-03
, 12:39
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Posts: 519 |
Thanked: 123 times |
Joined on Oct 2010
@ Malaysia
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#50
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I've been wanting to ask this and would like to know:
1. What is ignore nice load and would enabling it cause any real damage needing the flashing of the device and what not?
2. Smart reflex so far always caused my device to reboot. I'm at 250 900Mhz, so based on what some posters here have mentioned, it kinda sums that at these frequencies, smartreflex is indeed unstable. not just a bit unstable but INSTANT reboot once I enabled it in EITHER qcpufreq or cpufrequi
If no.2 is changeable, how?
1. What is ignore nice load and would enabling it cause any real damage needing the flashing of the device and what not?
2. Smart reflex so far always caused my device to reboot. I'm at 250 900Mhz, so based on what some posters here have mentioned, it kinda sums that at these frequencies, smartreflex is indeed unstable. not just a bit unstable but INSTANT reboot once I enabled it in EITHER qcpufreq or cpufrequi
If no.2 is changeable, how?
