Value of memory
blake at ispn.net
Thu Aug 7 14:18:13 UTC 2014
Robert, I'm running a minimal install of CentOS7 on x86 hardware. This
system provides authoritative and recursive roles across two separate
BIND views. I also have rbldnsd serving a few zones on this system.
free reports the following after ~24 hrs of uptime:
total used free shared buffers cached
Mem: 10071492 912808 9158684 16880 764 319180
-/+ buffers/cache: 592864 9478628
Swap: 5185532 0 5185532
I, too, find that my CentOS 6 systems are using ~ 2GB of RAM. Memory
usage on C7 appears to be down compared to a similarly configured C6
name server. Hope this provides a reference point.
Robert Moskowitz wrote the following on 8/6/2014 10:39 PM:
> I have a server that is only running bind 9.8.2 (Centos 6.5). It has
> 2Gb memory and free reports ~1.7Gb used.
> I am looking at replacing this server with an armv7 board running
> Redsleeve (until Centos 7 is out and stable for armv7). I have a
> choice of boards, one with 1Gb memory ($60) and one with 2Gb memory
> This server servers out my zones and supports the couple handfull of
> systems on my net. I would like to eventually get to DNSSEC, but that
> is another stalled project.
> About the only meaningful difference between the two boards (btw,
> Cubieboard2 and Cubietruck) for my needs is the memory. I know more
> memory is better, but how much better?
> Oh, why the move to arm? Power consumption. ROI for the C2 board is
> one year just on power saving.
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