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 and the disk activity LED is on 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 too heavy for Compiz under these circumstances.
Waiting until it's over takes more than 30 minutes, 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 for increasing memory usage is when more complex sites like GMail and plugins like Flash are running. Opening several new tabs at OMG! Ubuntu has the best chance to replecate this isue.
The output of
free -m when opening 12 OMG! Ubuntu tabs simultaneously:
Note: Total(T) Used(U) Free(F) Shared(S) Buffers(B) Cached(C) Memory: (T):2.0G (U):1.9G (F):95M (S):0B (B):264K (C):348M -/+ Buffers/Cache: 1.5G/444M Swap: (T):2.9G (U):146M (F):2.8G
Note: Filesystem(FS) Size(S) Used(U) Available(A) Use %(U%) Mounted on(MNT) (FS):/dev/sda1 (S):149G (U):102G (A):40G (U%):72% (MNT):/ (FS):udev (S):994M (U):12K (A):994M (U%):1% (MNT):/dev (FS):tmpfs (S):402M (U):1008K (A):401M (U%):1% (MNT):/run (FS):none (S):5.0M (U):0 (A):5.0M (U%):0% (MNT):/run/lock (FS):none (S):1004M (U):1.9M (A)1003M (U%):1% (MNT):/run/shm (FS):none (S):100M (U):0 (A):100M (U%):0% (MNT):/run/user (FS):/dev/sda5 (S):104G (U):79G (A):26G (U%)76% (MNT):/media/d
I have no idea where to start looking for a solution. Any help would be greatly apreciated.
- Operating System: Ubuntu 12.10 32-bit
- Memory: 2GB
- Processor(s): Intel 1.66 GHz (Dual Core)
- PC: IBM ThinkPad R60e
No other processes except Chromium (chromium-browser) were running. Several extensions however, were also running. Together, they used about 200-300 MB memory (see the list below). Disabling extensions like Offline GMail and Google Drive should make my system more responsive.
Anyone who has similar problems: Last week I have used Firefox instead of Chromium. It seems Firefox uses a bit 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.
Memory usage of several Chromium extensions
Google Drive: 60 MB
Offline GMail: 50 MB
MightyText: 36 MB
AdBlock Plus: 36 MB
Web Worker (Google Documents/docs.google.com): 32 MB
LastPass: 14 MB
Tamper Monkey: 11 MB
Fastest Chrome: 11 MB
PhotoZoom: 9 MB
Chrome To Phone: 9 MB