[vox-tech] Checking amount of memory

[ME]

On Mon, 11 Feb 2002, Jay Strauss wrote:
> I just installed a bunch of memory in my machine (512Mb).  How do I check if
> linux is "seeing" it all?
> 
> I looked at dmesg but all I see is:
> 
> Memory: 64036k/66556k available (1060k kernel code, 420k reserved, 976k
> data, 64k init, 0k bigmem)
> 
> When I do top:
> 
>   7:52am  up  2:40,  2 users,  load average: 0.00, 0.00, 0.00
> 45 processes: 44 sleeping, 1 running, 0 zombie, 0 stopped
> CPU states:  0.1% user,  0.7% system,  0.0% nice, 99.0% idle
> Mem:    64100K av,   40552K used,   23548K free,   45312K shrd,    3320K
> buff
> Swap:  265032K av,       0K used,  265032K free                   22140K
> cached
> 
>   PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   TIME COMMAND
>   771 root      11   0   852  852   664 R       0  0.9  1.3   0:00 top
>     1 root       0   0   472  472   400 S       0  0.0  0.7   0:05 init
>     2 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kflushd
>     3 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kupdate
>     4 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kpiod

free is what you prob want.

---
dugan@libfs:~$ free
             total       used       free     shared    buffers     cached
Mem:        971344     508936     462408      30452     279652     103868
-/+ buffers/cache:     125416     845928
Swap:       120480          0     120480
---

If Linux is only seeing 64Mb, try adding an entry to lilo.conf:
append="mem=512M" 
run lilo again, and reboot. See if free reports what you want.

(I thought that linux did a better job of detecting available memory +64Mb
since v2.2 kernels. My systems with 128Mb, 1Gb, 2Gb etc seem to find the
memory just fine.)

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