On Thu 04-04-13 16:10:06, Ivan Danov wrote: > Hi Michal, > > Yes, I use swap partition (2GB), but I have applied some things for > keeping the life of the SSD hard drive longer. All the things I have > done are under point 3. at > http://www.rileybrandt.com/2012/11/18/linux-ultrabook/. OK, I guess I know what's going on here. So you did set vm.swappiness=0 which (for some time) means that there is almost no swapping going on (although you have plenty of swap as you are mentioning above). This shouldn't be a big deal normally but you are also backing your /tmp on tmpfs which is in-memory filesystem. This means that if you are writing to /tmp a lot then this content will fill up your memory which is not swapped out until the memory reclaim is getting into real troubles - most of the page cache is dropped by that time so your system starts trashing. I would encourage you to set swappiness to a more reasonable value (I would use the default value which is 60). I understand that you are concerned about your SSD lifetime but your user experience sounds like a bigger priority ;) > By system freezes, I mean that the desktop environment doesn't react > on my input. Just sometimes the mouse is reacting very very choppy > and slowly, but most of the times it is not reacting at all. In the > attached file, I have the output of the script and the content of > dmesg for all levels from warn to emerg, as well as my kernel config. I haven't checked your attached data but you should get an overview from Shmem line from /proc/meminfo which tells you how much shmem/tmpfs memory you are using and grep "^Swap" /proc/meminfo will tell you more about your swap usage. > > Best, > Ivan HTH -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>