February 21, 201214 yr So my server has been running strong for a month and a half(45 days, 13 hours, 46 minutes) with no hiccups, i was just poking around because...well thats what i do , im still pretty noob at linux i know it handles ram allocation very differently than windows. when i issue to command to check ram i get root@server:~# free -m root@server:~# free -m total used free shared buffers cached Mem: 3796 3686 110 0 160 3184 -/+ buffers/cache: 340 3455 Swap: 0 0 0 top shows PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10079 nobody 20 0 204m 24m 3272 S 1 0.7 4:44.58 python 1925 root 20 0 112m 4084 628 S 0 0.1 110:02.12 shfs 20361 nobody 20 0 16908 3552 2548 S 0 0.1 0:10.03 smbd 1 root 20 0 828 304 264 S 0 0.0 0:11.12 init 2 root 20 0 0 0 0 S 0 0.0 0:00.01 kthreadd 3 root 20 0 0 0 0 S 0 0.0 0:15.34 ksoftirqd/0 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 9 root 20 0 0 0 0 S 0 0.0 0:15.33 ksoftirqd/1 11 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper 12 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:1 146 root 20 0 0 0 0 S 0 0.0 4:51.90 sync_supers 148 root 20 0 0 0 0 S 0 0.0 0:00.08 bdi-default 150 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd 257 root 0 -20 0 0 0 S 0 0.0 0:00.00 ata_sff 267 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd 373 root 0 -20 0 0 0 S 0 0.0 0:00.00 rpciod only 110MB ram free this cant be too good im running: v5.0-beta14 sab sickbeard couch transmission cache_dirs im not even sure if this is a problem but 100mb free memory doesnt sound too healthy esp considering i have 4 gigs and not running too many memory intensive programs....i run this much on windows and it only uses 2 gigs max idle.
February 21, 201214 yr Linux loves to eat up all the RAM for its cache, but it also happily gives it up when needed. Unless you're experiencing app crashes (like the web GUI), you should be just fine.
February 23, 201214 yr Glad I saw this, just checked mine, 7606 used, 254 free, good to know linux is just keeping it warm for me
February 23, 201214 yr root@server:~# free -m root@server:~# free -m total used free shared buffers cached Mem: 3796 3686 110 0 160 3184 -/+ buffers/cache: 340 3455 Swap: 0 0 0 Use the -/+ buffers/cache: line here as your guide. It shows you the true usage of memory ignoring any data that's cached or buffered. So it's saying your actual OS and programs in active memory are only using 340 megs. And you have 3455 megs left free that can be allocated as active memory. Which is plenty. You can also see you have 3184 megs cached - almost guaranteed to be disk data cached. As linux needs more memory for active memory it will push some out of the cache to make way. As has been said, don't worry about it you're fine.
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