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2010-11-29
, 10:39
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Posts: 4 |
Thanked: 0 times |
Joined on Jul 2010
@ Porvoo
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#2
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Usage is not full truth you should also follow on what speed(s) CPU was running while looking CPU load. Different speed of CPU and different CPU load threshold can explain why load was different (but still same amount CPU cycles was used).
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2010-11-29
, 20:58
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Posts: 306 |
Thanked: 106 times |
Joined on Feb 2010
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#3
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Ok, here the details during a sip call:
Stock kernel
Power kernel
It seems Power Kernel locks the device at a higher cpu frequency compared to stock. What makes is it worse that pulseaudio eats more cpu at this high frequency 
Stock kernel
Code:
#cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq 500000 #top Mem: 231816K used, 13724K free, 0K shrd, 4452K buff, 82476K cached CPU: 34.8% usr 15.1% sys 0.0% nice 49.0% idle 0.0% io 0.0% irq 0.9% softirq Load average: 3.42 2.53 1.23 PID PPID USER STAT RSS %MEM %CPU COMMAND 786 1 pulse S < 3852 1.5 30.0 /usr/bin/pulseaudio --system --high-priority 2682 1 user S < 13036 5.2 16.6 /usr/lib/telepathy/telepathy-stream-engine
Code:
#cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq 600000 #top Mem: 226924K used, 18344K free, 0K shrd, 13180K buff, 85928K cached CPU: 61.2% usr 24.7% sys 0.0% nice 12.1% idle 0.0% io 0.0% irq 1.8% softirq Load average: 3.14 1.85 0.74 PID PPID USER STAT RSS %MEM %CPU COMMAND 773 1 pulse R < 4928 2.0 48.0 /usr/bin/pulseaudio --system --high-priority 1558 1 user S < 13108 5.3 29.5 /usr/lib/telepathy/telepathy-stream-engine
__________________
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Voice choppy on sip calls
Please vote for bug number 10388
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Voice choppy on sip calls
Please vote for bug number 10388
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2010-12-01
, 05:09
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Posts: 842 |
Thanked: 1,197 times |
Joined on May 2010
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#4
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More than likely, your measurements are errored. It probably dropped to 250(or something) for a short time between measuring the cpu freq and the output from top.
Try with conky instead, so you can get simultanious numbers - Though, the accuracy may still be bad.
Really, though, does it matter? Provided the usable performance is approximately the same, ignore it.
Try with conky instead, so you can get simultanious numbers - Though, the accuracy may still be bad.
Really, though, does it matter? Provided the usable performance is approximately the same, ignore it.
__________________
My projects: BackupMenu - OS Backup & restore | Video: Flashing your n900(LiveCD)
My devices: N770 + 8GB SD card soldered internally, N900 with 8GB SD card + Custom OC(125-950 typically).
OC freqs: 0:22,90 125:22,90 250:28,180 500:30,360 550:32,400 600:34,430 700:39,430 750:41,430 805:45,430 850:47,500 900:50,500 950:54,500 1000:58,500 1100:67,520 1150:71,520
My projects: BackupMenu - OS Backup & restore | Video: Flashing your n900(LiveCD)
My devices: N770 + 8GB SD card soldered internally, N900 with 8GB SD card + Custom OC(125-950 typically).
OC freqs: 0:22,90 125:22,90 250:28,180 500:30,360 550:32,400 600:34,430 700:39,430 750:41,430 805:45,430 850:47,500 900:50,500 950:54,500 1000:58,500 1100:67,520 1150:71,520
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2010-12-01
, 06:29
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Posts: 306 |
Thanked: 106 times |
Joined on Feb 2010
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#5
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You might be right about frequency dropping to 250. Unfortunately, the call quality is poor in power kernel compared to stock. It gets a bit jittery due to high cpu usage. I have filed a bug.
__________________
------------------------------------------------------------------
Voice choppy on sip calls
Please vote for bug number 10388
------------------------------------------------------------------
Voice choppy on sip calls
Please vote for bug number 10388
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2010-12-01
, 09:55
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Posts: 9 |
Thanked: 4 times |
Joined on Aug 2010
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#6
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Anybody having camera issues after installing latest version of linux power kernal from extras?
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2010-12-01
, 10:18
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Posts: 820 |
Thanked: 436 times |
Joined on May 2010
@ Portsmouth, UK.
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#7
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Originally Posted by rwnoob
Nope, have you got fcam installed? Have you updated the fcam drivers with titans latest ones?
Anybody having camera issues after installing latest version of linux power kernal from extras?
I installed Power Kernel from extras and havent enabled any overclocking. The cpu usage in a sip call is about 60% compared to 40% in the stock kernel. The pulseaudio cpu usage is particularly high.
Is there any workaround for this?
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Voice choppy on sip calls
Please vote for bug number 10388