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linux shares memory between apps, and it caches a lot. as long
as your hard drive is not swapping a lot, you're fine and need
not worry about reported ram usage. the ram's there to be
used; so why should it be free?
Why am I asking how to free the RAM because the programs began to lag when I switch between programs. Prior to that, I did intense disk activity.
Yes I uses top and free to monitor the RAM usage.
As for deamons, I have the usual, but i switch off samba, sendmail, nfs which is on by default in Slackware. I have two httpd running on the same machine. Anyhow, nobody accesses it or even know of its existance.
After booting up. I did a free and it says that 60++Mbyte has been used. after starting X with KDE. It says 150M++. After that, I left it over night and this morning when I checked it reports 630M used 402M free 174M cache.
How should we interprate the data from free and top? If I do a ps -aux, the RAM usage when I totalled up together is about 22.3 %.
Originally posted by carboncopy After booting up. I did a free and it says that 60++Mbyte has been used. after starting X with KDE. It says 150M++. After that, I left it over night and this morning when I checked it reports 630M used 402M free 174M cache.
60 Mbyte at the console??? That sounds an awful lot. I think even with smbd, httpd, sendmail, and pretty much anything else Slackware has availible to start up, it shouldn't take 60 Mbyte of RAM. I'm pretty sure that I use around 8 Mbyte of RAM at the console, even with sendmail and httpd running. Is it possible your machine has been compromised?
I am connected to the university campus lan. Not accessible directly from the Internet. Compromised? Maybe, but not likely.
Anyhow, I have decided that I have inteprated the info wrongly. As what reclusivemonkey says:
Originally posted by reclusivemonkey
The top line is the memory that has been used on your system, but the important line is the next one down, the +/- buffers/cache. This is the true picture of the memory in use by your system.
Still, nobody explained about the sync thing which was mentioned by jvds.