Computer halts...what can I do?

hammer · 2012-01-08 12:20:42

Hello guys,

I need your precious help. 4-5 times the day my system goes very slowly for some minutes, it almost halts and cant even move the mouse. There is no proof that it happens when I do "heavy jobs" because it has happened even when was editing a doc file. Also I have only the neccessary apps running in the background(even kmail is disabled), and disabled nepomuk indexing. And I dont know what do...

My machine has a disk of 60GB storage(ide), 1gb ram, Intel Celeron CPU 2.40GHz and Nvidia 7xxx series(AGP). I use nvidia drivers and have direct rendering enabled and run kde 4.7.4. Also,hdparm gives me the following results.

<<sudo hdparm -t /dev/sdb3

/dev/sdb3:
Timing buffered disk reads: 152 MB in 3.04 seconds = 49.97 MB/sec
>>

I have and a dmesg log after one halt, yesterday. If you think it will help, tell me to uploaded :)

Any help appreciated.

karol · 2012-01-08 12:28:59

Maybe your system starter swapping or doing some high-I/O stuff like certain cronjobs? Check 'free -m' to see if swap is to blame and use 'iotop' to check I/O.

hammer · 2012-01-08 12:59:38

After osberving a bit the iotop output I saw that occasiionaly kswapd and a process named --disable-webgl --disable-gl-multisampling -~ompositing --channel=1354.0xbdc1360.59040460(probably from chrome) took a fair percentage of IO. What can I do for that? Disbaling swap, is possible?

Stebalien · 2012-01-08 18:10:46

https://wiki.archlinux.org/index.php/Ma … Swappiness

hammer · 2012-01-08 20:15:02

H3ll yeah...with swappiness=1 it seems already tuned. I owe you some beers, dudes

hammer · 2012-01-11 20:38:43

Hello again...after 4 days of testing I have seen my computer responding better but not perfect. Still having some halts. Any other ideas? :S
For example moving to another filesystem without erasing data is possible?

Stebalien · 2012-01-12 16:45:05

Around the time that your system becomes unresponsive, what is the output of 'free -m'? Also, run 'iotop -qqqo -n10' as root and post the output.

hammer · 2012-01-18 20:17:08

Hello, sorry for the big delay. I didnt manage to see free -m output but iotop gives me kswapd.

The command above gives the following results:

<<

iotop -qqqo -n10
1008 be/4 periklis 0.00 B/s 466.80 K/s 0.00 % 1.12 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
330 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.39 % [kjournald]
987 be/4 periklis 0.00 B/s 222.28 K/s 0.00 % 0.00 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
988 be/4 periklis 0.00 B/s 44.46 K/s 0.00 % 0.00 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
989 be/4 periklis 0.00 B/s 133.37 K/s 0.00 % 0.00 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
990 be/4 periklis 0.00 B/s 66.69 K/s 0.00 % 0.00 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
330 be/4 root 0.00 B/s 14.46 K/s 0.00 % 23.79 % [kjournald]
982 be/4 periklis 0.00 B/s 2.89 K/s 0.00 % 0.01 % mysqld --defaults-file=/home/periklis/.local/share/akonadi//mysql.conf --datadir=/home/periklis/.local/share/akonadi/db_data/ --socket=/home/periklis/.local/share/akonadi/socket-p/mysql.socket
148 be/4 root 0.00 B/s 6.35 K/s 0.00 % 2.49 % [kjournald]
1285 be/4 periklis 0.00 B/s 3.10 K/s 0.00 % 0.00 % python2 /usr/libexec/ubuntuone-syncdaemon

>>

1archgamenon2 · 2012-01-18 21:07:56

$ free -m
             total       used       free     shared    buffers     cached
Mem:           491        474         16          0         26        187
-/+ buffers/cache:        261        229
Swap:          972        165        806

is there something to tune?

thx

fsckd · 2012-01-18 22:24:53

1archgamenon2, do not hijack threads. Start your own. Forum Etiquette: Thread Hijacking

Arch Linux

#1 2012-01-08 12:20:42

Computer halts...what can I do?

#2 2012-01-08 12:28:59

Re: Computer halts...what can I do?

#3 2012-01-08 12:59:38

Re: Computer halts...what can I do?

#4 2012-01-08 18:10:46

Re: Computer halts...what can I do?

#5 2012-01-08 20:15:02

Re: Computer halts...what can I do?

#6 2012-01-11 20:38:43

Re: Computer halts...what can I do?

#7 2012-01-12 16:45:05

Re: Computer halts...what can I do?

#8 2012-01-18 20:17:08

Re: Computer halts...what can I do?

#9 2012-01-18 21:07:56

Re: Computer halts...what can I do?

#10 2012-01-18 22:24:53

Re: Computer halts...what can I do?

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