Yes, it is a live server. It had 1.25 GB RAM in it. For new applications
and new growth, that was deemed too little. We decided to max it out while
memory prices are reasonable. So, this morning I installed 6 GB. The
server has a "regular" SMP kernel, and only sees 4 GB of the 6 GB that is in
there. The server is fine, it is up and serving requests. My goal is to
get it working with 6 GB RAM without sacrificing SMP.
This is what /proc/meminfo tells me:
total: used: free: shared: buffers: cached:
Mem: 3951759360 2602881024 1348878336 49152 278196224 845475840
Swap: 2097291264 0 2097291264
MemTotal: 3859140 kB
MemFree: 1317264 kB
MemShared: 48 kB
Buffers: 271676 kB
Cached: 825660 kB
SwapCached: 0 kB
Active: 430112 kB
Inact_dirty: 667272 kB
Inact_clean: 0 kB
Inact_target: 1048576 kB
HighTotal: 3014640 kB
HighFree: 853080 kB
LowTotal: 844500 kB
LowFree: 464184 kB
SwapTotal: 2048136 kB
SwapFree: 2048136 kB
Yes, I know that 2 GB of swap is probably a little small for 6 GB of RAM,
that is something we will be addressing. Right now our goal is SMP w/ 6 GB
RAM. While I've built kernels before, it has always been done on a
non-critical machine, so until an identical server to the one I have is
delivered (on order) I would prefer not to use the server I have as a
test-bed.
John
> -----Original Message-----
> From: Gordon Messmer [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, January 21, 2003 1:20 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Max amount of RAM in 7.2 question
>
>
> On Tue, 2003-01-21 at 09:45, Turner, John wrote:
> >
> > Actually, I think building from source is my only option,
> unless the bigmem
> > kernel is SMP. Any ideas how I might go about confirming
> if it is or not
> > without trying the bigmem kernel on my production server?
>
> Sure. Install the kernel, but don't reboot. Examine
> /boot/config-2.4.18-19.7.xbigmem for the build options.
>
> # grep SMP /boot/config-2.4.18-19.7.xbigmem
> CONFIG_SMP=y
> CONFIG_SMP=y
> CONFIG_SMP=y
>
> Don't know why it's there three times, but the bigmem kernel
> is clearly
> SMP.
>
> Is the server really "in production" if the kernel hasn't been worked
> out, though?
>
>
>
>
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