Memory Question !!

Memory Question !!

Post by Jacoub Sbait » Sat, 09 Oct 1999 04:00:00



We have SUN SOLARIS 2.6, with 2 GB of RAM.
I have a problem with the CPIO unix command. I use it to back all my
file system to a RAID device (. When ever I run that cpio process , it
sucks mostly all the RAM available and it takes about 5 hours to finish
AND when the system is done, the memory (RAM) stays low and won't come
back until I reboot the system to refresh the memory !!!!!

I wonder if there is a way to refresh the memory  or to gain back the
memory was occupied by cpio process !!!! ??

Thanks a lot.

 
 
 

Memory Question !!

Post by bmar.. » Sun, 10 Oct 1999 04:00:00



   >We have SUN SOLARIS 2.6, with 2 GB of RAM.
   >I have a problem with the CPIO unix command. I use it to back all my
   >file system to a RAID device (. When ever I run that cpio process ,
   >it sucks mostly all the RAM available and it takes about 5 hours to
   >finish AND when the system is done, the memory (RAM) stays low and
   >won't come back until I reboot the system to refresh the memory
   >!!!!!
   >I wonder if there is a way to refresh the memory  or to gain back
   >the memory was occupied by cpio process !!!! ??
   >Thanks a lot.
You can try using tar instead of cpio, but I don't think cpio is really the
problem.

Net-Tamer V 1.08X - Test Drive

 
 
 

1. Linux memory question (_not_ > 64M question)

I am running redhat 5.1 on Compaq 974 with 32Megs of memory.
I am starting to suspect that I am only using 16 Megs but am not sure.

When I scan the /var/log/dmesg file I find the following entry
Memory: 14708k/16384k available (748k kernel code, 384k reserved, 544k data)

and when I do "free" I get
Mem:         14708      14252        456      14720        556       6472
-/+ buffers/cache:       7224       7484
Swap:       128988          0     128988

How do I interpret this?  Does it mean that linux is dedicating
14 megs to processes and 16M to buffers (ie. it is taking advantage of all
32 Megs)?

Or is it something else?

I tried adding (mem=31M --- in case I had bios shadowing on) in lilo and
I got the same result.

Thanks in advance for your help.
-John

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