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The N900 is now 15 years old! (8)
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2009-12-11
, 00:11
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@ NE UK
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#2
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for a very basic check, you can do (in xtermnal)
cat /proc/cpuinfo
Edit: Wrong! See below..
Last edited by kwotski; 2009-12-11 at 00:48.
cat /proc/cpuinfo
Edit: Wrong! See below..
Last edited by kwotski; 2009-12-11 at 00:48.
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2009-12-11
, 00:20
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Joined on Nov 2009
@ Bremen, Germany
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#3
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check wikipedia: 600 mhz 
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2009-12-11
, 00:47
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@ NE UK
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#4
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Oops, I should have said:
There's other stuff in the same directory:
Code:
cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
Code:
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 600000 550000 500000 250000 ~# cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state 600000 50910 550000 1552 500000 18403 250000 838257
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2009-12-11
, 01:11
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@ St. Petersburg, FL
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#6
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Originally Posted by J0ph33
It'll vary by as much as 400MHz several times a second. Why do you care?
but for now its not possible to check the actual cpu clock?
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Ryan Abel
Ryan Abel
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2009-12-11
, 02:28
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@ UK
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#7
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i guess a rolling average is what is being asked for?
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2009-12-11
, 02:56
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@ NE UK
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#8
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Yeah, I think you really want a benchmark, probably 
You won't get much closer to the "actual" clock than reading stuff out of /proc, since (though it looks like a file) the data I mentioned in there is in fact directly accessing data placed in RAM by the kernel routines that are the best informed of anyone about what state the clock is at least supposed to be in.
For a quick "rolling average 'app'" you could try running:
in x-term
At this time of night, I'm not guaranteeing the arithmetic..
You won't get much closer to the "actual" clock than reading stuff out of /proc, since (though it looks like a file) the data I mentioned in there is in fact directly accessing data placed in RAM by the kernel routines that are the best informed of anyone about what state the clock is at least supposed to be in.
For a quick "rolling average 'app'" you could try running:
Code:
watch -n 1 "perl -ne 'if(/(\d+)\s+(\d+)/){\$c += \$1 * \$2; \$t += \$2; }END{ \$a = \$c / \$t; print \"\$c cycles in \$t secs, avg: \$a\n\";}' /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"
At this time of night, I'm not guaranteeing the arithmetic..
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2009-12-11
, 03:40
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@ St. Petersburg, FL
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#9
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Originally Posted by fusi
OK, how about powertop?
i guess a rolling average is what is being asked for?
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Ryan Abel
Ryan Abel
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2009-12-11
, 14:00
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@ Somerville MA - USA
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#10
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Would it be possible to take the governor off the cpu clock? I believe it is currently under clocked to increase battery performance.
is there a program to check N900's cpu clock
a benchmark would help as well...
thanks in advance