My favorite browser: chromium is testing my patience. For some reason it sometimes uses 99,99% of I/O. (reading 2-3MB/s) Other processes (updatedb.mlocate, [kswapd0], clementine, compiz) show the same behavior. However this problem always starts and ends with chromium.
To illustrate the impact on my system: when my disk starts to spin like crazy en the led burns continiously the system is so slow that it takes about two to five minuits to switch to tty6, log in and execute "killall chromiumbrowser && killall chromium" This is way faster than starting a new terminal in X, just starting a terminal seems to heavy for compiz under these circumstances. Waiting until its over takes more than 30 minuits, if it ends at all.
The exact circumstances are difficult to replicate. Several tabs have to be open, usualy 8 or more. It seems that the chance to increases when more complex sites like gmail of plugins like flash are running. Opening several new tabs at omgubunt.co.uk has the best chance to replecate this isue.
The output of
free -m when opening 12 omgubuntu tabs simultaniously
total used free shared buffers cached Mem: 2.0G 1.9G 95M 0B 264K 348M -/+ buffers/cache: 1.5G 444M Swap: 2.9G 146M 2.8G
Filesystem Size Used Avail Use% Mounted on /dev/sda1 149G 102G 40G 72% / udev 994M 12K 994M 1% /dev tmpfs 402M 1008K 401M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1004M 1.9M 1003M 1% /run/shm none 100M 0 100M 0% /run/user /dev/sda5 104G 79G 26G 76% /media/d
I have no idea where to start looking for a solution. Any help would be greatly apreciated
ubuntu 12.10 | 2GB | 2x 1.66GHz Intel | 32bit | IBM Thinkpad R60e
No other processes than chromium were running. Several extensions however, were running. Together they used about 200 to 300 MB memmory. (see the list below) Disabling extensions like "offline gmail" and "google drive" should make my system more workable.
Anyone who has similar problems: last week I have used firefox in stead of chromium. It seems firefox uses quite an amount less memory. Perhaps a practical short-term solution. Coming week I will report back about how much the performance of chromium has improved when running without extensions.
memmory usage of several chromium extensions
60 MB google drive
50 MB gmail offline
36 MB mightytext
36 MB adblock plus
32 MB webworker: docs.google.com
14 MB lastpass
11 MB tampermonkey
11 MB fastestchrome
09 MB photozoom
09 MB chrome to phone