On 9/22/2009 at 11:35 PM, Leland Lucius lluc...@homerow.net wrote:
Is it being removed entirely or will distros be providing it?
First, let's distinguish between CMM-1 and CMM-2/CMMA. It is the latter that
is being dropped by IBM. It will remain in the distribution versions in which
it
Am Mittwoch 23 September 2009 07:15:23 schrieb Mark Post:
On 9/22/2009 at 11:35 PM, Leland Lucius lluc...@homerow.net wrote:
Is it being removed entirely or will distros be providing it?
First, let's distinguish between CMM-1 and CMM-2/CMMA. It is the latter
that is being dropped by
Mark Post wrote:
On 9/22/2009 at 11:35 PM, Leland Lucius lluc...@homerow.net wrote:
Is it being removed entirely or will distros be providing it?
First, let's distinguish between CMM-1 and CMM-2/CMMA. It is the latter that
is being dropped by IBM. It will remain in the distribution
So you should probably measure the two before deciding on which one you
want to keep. CMM-1 has very positive results, cmma not so positive.
Leland Lucius wrote:
Mark Post wrote:
On 9/22/2009 at 11:35 PM, Leland Lucius lluc...@homerow.net wrote:
Is it being removed entirely or will distros be
Barton Robinson wrote:
So you should probably measure the two before deciding on which one you
want to keep. CMM-1 has very positive results, cmma not so positive.
At the risk of bringing on the wrath of the performance gods, I just
have to say that I'm not really interested in measuring
I was wondering how you turn on each of the offerings.
I have looked in several manuals and they talk about and compare the CMM
offerings, but they were not specific on implementation.
We load the CMM module via
/etc/sysconfig/kernel
MODULES_LOADED_ON_BOOT=vmcp cmm
So what is it that we have
Sam,
We load the CMM module via
/etc/sysconfig/kernel
MODULES_LOADED_ON_BOOT=vmcp cmm
So what is it that we have turned on?
Good question. You've turned on CMM1 on Linux, but as I understand it,
there must also be a *collaborative* piece enabled on z/VM.
In both the latest Virtualization
We tried CMM-1 a month or two ago on a single guest. Without VMRM,
there's nothing for it to talk to, so it does nothing. (It works by
having VMRM send it notices to decrease working set size.)
With it enabled on one guest, on a machine slightly memory constrained,
it drove the memory
This presentation might be of some interest to those looking
at the CMM-1 and CMM2/CMMA options:
http://www.linuxvm.org/Present/SHARE113/S9272lj.pdf
Enjoy.
DJ
- Original Message -
From: Hall, Ken (GTS) ken_h...@ml.com
To: LINUX-390@VM.MARIST.EDU
Subject: Re: When will CMMA be removed
All of our RHEL4 guests are pre-update-7 and unlikely to be upgraded any
time soon. I think I've seen this doc before. Thanks though.
-Original Message-
From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of
dave
Sent: Tuesday, September 22, 2009 9:35 PM
To:
Mike, CMM does require a collaborative piece. Or one can tune the
system manually with CMM commands, but that gets boring. VMRM should
have been enough, but it has very poor feed back mechanisms, and has no
clue about what is happening inside Linux. It is thus severely limited,
has lots of
On 9/23/2009 at 10:51 AM, Michael MacIsaac mike...@us.ibm.com wrote:
-snip-
Good question. You've turned on CMM1 on Linux, but as I understand it,
there must also be a *collaborative* piece enabled on z/VM.
If you want to have the size of the balloon dynamically changed with insight
from the
Barton,
I wrote,
... could you point to some numbers ...
You replied, but I don't see a reference to any numbers.
You wrote in a reply:
VMRM should have been enough, but it has very poor feed back
mechanisms, and has no clue about what is happening inside Linux.
And:
With that in mind, with
I'm curious that Barton wrote on August 28th:
VMRM has taken so much storage away from servers that the
server or application dies. I would HIGHLY recommend against using it.
z/VM has recently documented how to keep VMRM from eating up too much
memory, though the mechansim to do so has been
Xenia, wouldn't it be better if VMRM didn't have to depend on users
remembering to do this as their workload changes? If they have one large
server say with a large oracle application, the minimum value setting
would have to be the minimum for this server? So all servers are treated
and trimmed
Xenia, wouldn't it be better if VMRM didn't have ...
...
Our approach is to look in side (sic) the server ...
Moderator - order in the court please! Again, we're all trying to do what
is best for the z/VM/Linux customer.
Let's try to understand the difference between how VMRM and *this other
Is it being removed entirely or will distros be providing it?
Leland
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