Do I need more RAM?
kitepilot at kitepilot.com
kitepilot at kitepilot.com
Thu Jan 21 12:54:51 MST 2010
Feel free to post the output of:
ps aux
I'm sure you're running junk you don't need.
Junk that is eating memory and cycles.
ET
PS: More stupid unrelated wisdom:
The difference between the Mafia and the IRS,
is that the Mafia has a code of honor.
(I'm about to print that on T-shirt...)
Mark Phillips writes:
> Thanks for the explanation! We don't need t hold a car wash (bad timing this
> week anyway....;-)) to raise the money for the next larger linode....just
> pass the collection jar around for the $50.
>
> Cheers!
>
> Mark
>
> On Thu, Jan 21, 2010 at 10:24 AM, Joseph Sinclair <plug-discussion at stcaz.net
>> wrote:
>
>> According to the free -t line, you have around 80M of "free" RAM on the
>> machine. If money is tight then you're fine with the amount of RAM you have.
>> If the system starts to slow down in a few months you may want to
>> re-investigate.
>>
>> BTW, free reports numbers in "k", and the free column is the amount of
>> memory actually unused after adjustments, so the "-/+ buffers/cache" line
>> shows 81388 K free for program use.
>>
>> Mark Phillips wrote:
>> > LOL.....Thanks to everyone for helping me do a better job of phrasing my
>> > question....;-) and for your good suggestions.
>> >
>> > I agree, one can always use more
>> > (clean) air
>> > FOOD
>> > BEER (wine for some)
>> > RAM, CPU,s, (but maybe not ROM)
>> >
>> > I should have said...."Given a miniscule budget with no extra cash laying
>> > around (other than in my pocket or the newspaper class teacher's pocket),
>> I
>> > am faced with two options to spend money.
>> > A - $50/year for an additional 2GB of disk space, which is enough for the
>> > next year or so, and we need that disk space for articles and photos.
>> > B - $109/year for 8GB of additional disk space (don't need all that now,
>> but
>> > will grow into it), 180 MB of RAM (do I really need it?) and additional
>> > bandwidth that I don't need."
>> > Both amounts are due up front - ie discounted over the normal monthly
>> cost
>> > for up front payment and non-profit status.
>> >
>> > The minimum RAM requirement (from the documentation) for a Plone site is
>> > 512MB. But I have run many small sites on less and they work just fine.
>> This
>> > one is a case in point.
>> >
>> > The results of free -t:
>> >
>> > total used free shared buffers cached
>> > Mem: 368836 363408 5428 0 24248 51712
>> > -/+ buffers/cache: 287448 81388
>> > Swap: 524280 47180 477100
>> > Total: 893116 410588 482528
>> >
>> > Can someone help me interpret these numbers? Based on "The "-/+
>> > buffers/cache:" line will tell you how much memory the system is
>> > taking because nobody else is using it." I would conclude that the OS (ie
>> > the "system") as opposed to the application is using most of the memory
>> > because it can, so the app is not being starved. But I can argue the
>> other
>> > way as well, so I am a little lost.
>> >
>> > For what it is worth, Plone/Zope are Python beasts. Is there a way to see
>> if
>> > any of the application is in swap versus RAM? The system does not have a
>> > noticeable lag when pages are accessed - it is not instantaneous, but
>> faster
>> > than my Google apps account. ;-)
>> >
>> > Thanks!
>> >
>> > Mark
>> >
>> > On Thu, Jan 21, 2010 at 8:54 AM, kitepilot at kitepilot.com <
>> > kitepilot at kitepilot.com> wrote:
>> >
>> >> Do I need more air?
>> >> Do I need more FOOD?
>> >> Do I need MORE BEER!!!
>> >>
>> >> Give more, MORE, MOOOREEEE!!!!
>> >> Gawd, I need more Prozac too... :)
>> >>
>> >> You will never have too much memory, or extrapolating to aviation:
>> >> The only time I have too much fuel is when the airplane is on fire...
>> ;-)
>> >>
>> >> top alone will only hand you part of the picture.
>> >> Try:
>> >> free -t
>> >> Look at the line:
>> >> -/+ buffers/cache: XXXX
>> >>
>> >> Memory is used by buffers that are there only for efficiency, but will
>> be
>> >> returned to the system on demand. Sometimes very little used stuff will
>> go
>> >> to swap, and adding memory will not really help anything (and it won't
>> hurt
>> >> anything either, other than your checkbook)
>> >>
>> >> The "-/+ buffers/cache:" line will tell you how much memory the system
>> is
>> >> taking because nobody else is using it.
>> >> YMMV...
>> >> ET
>> >>
>> >> PS: And that "airplane on fire" wisdom is not always true, but works for
>> >> novice pilots...
>> >> Or:
>> >> My job is not to teach how to fly.
>> >> My job is to help you stay alive while you learn... :)
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> Mark Phillips writes:
>> >>
>> >>> I have a Zope/Plone 2.5 web site running on Debian on a Linode virtual
>> >> host.
>> >>> It has grown over the last few years, and now I need to add some more
>> >> disk
>> >>> space. The site is for a school newspaper, so from August - June,
>> >> students
>> >>> add news articles and photos.
>> >>>
>> >>> I was also looking at the output of top, and perhaps I need more RAM as
>> >>> well? Top shows I have only 5 MB free out of 368 MB of total RAM, but I
>> >> am
>> >>> only using 9% of my swap, so perhaps I don't need more RAM. The site
>> does
>> >>> not seem slow.
>> >>>
>> >>> Tasks: 69 total, 1 running, 68 sleeping, 0 stopped, 0 zombie
>> >>> Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>> >>> 0.0%st
>> >>> Mem: 368836k total, 363364k used, 5472k free, 8316k
>> buffers
>> >>> Swap: 524280k total, 46716k used, 477564k free, 67436k cached
>> >>>
>> >>> Thanks for any suggestions you may have.
>> >>>
>> >>> Mark
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