[RESOLVED] high load, low cpu usage

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[RESOLVED] high load, low cpu usage

Postby gidden » Sun Jan 26, 2014 7:48 pm

I have high load with procesor in idle.

I have ubuntu image from wandboard download.
I was update it and disable GUI with this command :
echo "manual" | sudo tee -a /etc/init/lightdm.override

here is some info :

top :
Code: Select all
linaro@linaro-ubuntu-desktop:~$ top
top - 19:45:48 up 8 min,  3 users,  load average: 4.20, 3.53, 1.89
Tasks:  91 total,   1 running,  90 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.3%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   1960080k total,    93772k used,  1866308k free,    11960k buffers
Swap:   786424k total,        0k used,   786424k free,    28136k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 1989 linaro    20   0  2140  936  700 R    1  0.0   0:00.71 top
 1727 root      20   0  2612  616  468 S    0  0.0   0:00.34 irqbalance
    1 root      20   0  3120 1648  972 S    0  0.1   0:02.45 init
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd 
    3 root      20   0     0    0    0 S    0  0.0   0:00.10 ksoftirqd/0   
...


dmesg:
Code: Select all
...
[    3.319773] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    3.335084] EXT4-fs (mmcblk0p1): mounting ext3 file system using the ext4 subsystem
[    3.393049] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[    3.401216] VFS: Mounted root (ext3 filesystem) on device 179:1.
[    3.432691] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 11 host->next_data.cookie 12
[    3.433244] devtmpfs: mounted
[    3.436283] Freeing init memory: 172K
[    3.477278] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 16 host->next_data.cookie 17
[    3.486228] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 17 host->next_data.cookie 18
[    3.512970] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 20 host->next_data.cookie 21
[    3.530899] USB Gadget resume begins
[    3.530910] fsl_udc_resume, Wait for wakeup thread finishes
[    3.540261] mmc1: queuing unknown CIS tuple 0x80 (50 bytes)
[    3.603405] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 31 host->next_data.cookie 32
[    3.625810] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 34 host->next_data.cookie 35
[    3.634746] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 35 host->next_data.cookie 36
[    3.657487] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    3.671542] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 39 host->next_data.cookie 40
[    3.685022] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 41 host->next_data.cookie 42
[    3.689921] mmc1: queuing unknown CIS tuple 0x80 (4 bytes)
[    3.752982] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 49 host->next_data.cookie 50
[    3.855572] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 61 host->next_data.cookie 62
[    3.976071] [sdhci_pre_dma_transfer] invalid cookie: data->host_cookie 75 host->next_data.cookie 76
[    4.124433] mmc1: queuing unknown CIS tuple 0x02 (1 bytes)
[    4.186705] mmc1: new SDIO card at address 0001
[    5.220573] ehci_fsl_bus_suspend begins, Host 1
[    5.221237] ehci_fsl_bus_suspend ends, Host 1
[    5.660073] init: ureadahead main process (681) terminated with status 5
[    7.361699] udevd[803]: starting version 175
[    7.659083] init: idmapd main process (1106) terminated with status 1
[    7.659208] init: idmapd main process ended, respawning
[    7.747944] init: idmapd main process (1120) terminated with status 1
[    7.748082] init: idmapd main process ended, respawning
[    7.837641] init: idmapd main process (1133) terminated with status 1
[    7.837781] init: idmapd main process ended, respawning
[    7.931124] init: idmapd main process (1146) terminated with status 1
[    7.931252] init: idmapd main process ended, respawning
[    8.052209] init: idmapd main process (1162) terminated with status 1
[    8.052336] init: idmapd main process ended, respawning
[    8.132345] init: idmapd main process (1175) terminated with status 1
[    8.132475] init: idmapd main process ended, respawning
[    8.216793] init: idmapd main process (1188) terminated with status 1
[    8.216922] init: idmapd main process ended, respawning
[    8.310742] init: idmapd main process (1201) terminated with status 1
[    8.310868] init: idmapd main process ended, respawning
[    8.395778] init: idmapd main process (1216) terminated with status 1
[    8.395911] init: idmapd main process ended, respawning
[    8.476648] init: idmapd main process (1232) terminated with status 1
[    8.476779] init: idmapd main process ended, respawning
[    8.559147] init: idmapd main process (1245) terminated with status 1
[    8.559274] init: idmapd respawning too fast, stopped
[    8.921552] udevd[1251]: renamed network interface eth0 to eth2
[   10.531657] udevd[1252]: renamed network interface wlan0 to wlan3
[   11.391537] eth2: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:01, irq=-1)
[   15.391051] PHY: 1:01 - Link is Up - 1000/Full
[  130.830064] init: alsa-restore main process (1676) terminated with status 99
[  131.505186] Adding 262140k swap on /dev/zram0.  Priority:10 extents:1 across:262140k SS
[  132.411612] Adding 524284k swap on /dev/mmcblk0p2.  Priority:-1 extents:1 across:524284k SS
[  132.541758] init: tty1 main process (1870) killed by TERM signal


Can you help me ?
Last edited by gidden on Tue Feb 04, 2014 10:57 pm, edited 1 time in total.
gidden
 
Posts: 5
Joined: Tue Jan 21, 2014 1:30 pm

Re: high load

Postby Richard » Mon Jan 27, 2014 7:57 am

Hello:

I am not getting you points,
according the message of you "top"
99.7%id means it's almost no load.
Richard
Site Admin
 
Posts: 138
Joined: Tue Dec 17, 2013 6:57 am

Re: high load

Postby CruX » Mon Jan 27, 2014 8:56 am

I guess he is referring to the "load"
Code: Select all
load average: 4.20, 3.53, 1.89


As far as I know this is perfectly "normal" for wandboard systems (at least on 3.0.35). I too have this unusual load but it does not affect performance. (See this).

Cheers
CruX
 
Posts: 68
Joined: Sun Oct 27, 2013 1:29 pm

Re: high load

Postby Tapani » Mon Feb 03, 2014 12:49 am

Yes, this is common on iMX6 systems. It is nothing to worry about, as long as CPU usage is low.
Tapani
 
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Joined: Tue Aug 27, 2013 8:32 am


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