My rule of thumb on any system is to max out the memory, then allocate
twice as much swap; hasn't let me down yet.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."
I have 120GB HDD with 3.8GB swap at the moment. I have monitored the
swap usage for sometime, running frequently used applications and then
hibernate. It uses around 175MB even after hibernation. My new SSD is
120GB and I'm having 4GB RAM now. So as per the discussion with you, I'm
planning to
From my experience, unless you are doing major graphics/video or audio
editing, 32bit should suffice...but as another thread indicated,
evaluate all your apps and see what will be beneficial in the long run.
Dan
On 02/04/2016 01:49 PM, Boris wrote:
Am 04.02.2016 um 20:32 schrieb Stefan Monnie
> option, swap is where the memory image is put, and it should be at least
> as large as real memory.
Actually no: when hibernating, the requirement is that the currently
unused swap space (which should usually be pretty much the whole swap
space), be large enough to contain a *compressed* form of
I do not know where the various rules-of-thumb came from, but suspect it
mostly was from production multiuser/multiprocess systems where the
emphasis was on throughput, I/O wait was common, and it throughput could
be increased by overcommitting real memory and thereby reducing the
processor idle ti
On Thursday, 4 Feb 2016 at 12:53, Felipe Duque wrote:
> I guess it depends on your RAM usage. Currently I have an 8GB RAM
> laptop but my usage never goes beyond 6GB (even doing scientific
> computations) so I didn't bother allocating more then 1GB for my swap
> partition.
I concur. For my use c
Am 04.02.2016 um 20:32 schrieb Stefan Monnier:
>> I have been using Debian in my Lenovo Thinkpad T61 from 2007 onwards.
>> I have the latest upgrade Stretch/sid on it.
>> This laptop has Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40 GHz and was having
>> 2GB RAM. But this week I have upgraded the RAM to
> I have been using Debian in my Lenovo Thinkpad T61 from 2007 onwards.
> I have the latest upgrade Stretch/sid on it.
> This laptop has Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40 GHz and was having
> 2GB RAM. But this week I have upgraded the RAM to 4GB and replaced the HDD
> with a new Intel SSD 120
> How much swap space does 4GB ram ideally requires?
RAM doesn't require sap space. It's the lack of RAM which does.
There are typically 2 cases where you "lack" RAM:
- when you're using more memory than you have. This was historically
the justification for the "2x" rule, but nowadays it's fai
So, what you say is if you don't have, you can't hibernate?
2016-02-04 15:49 GMT-03:00 Bennett Piater :
> > I am curious: why and how? IIUC, neither suspend nor hibernate use
> > swap. Or have I misunderstood?
> >
> > Hibernate, in particular, saves everything to disk so RAM should not be
> > a
Swap is not designed to 'increase the RAM'? So that when we don't have RAM
will use the swap?
For me the swap is only used when we don't have RAM then swap will be used
(the access is very slow because is located in disk).
2016-02-04 15:10 GMT-03:00 Eric S Fraga :
> On Thursday, 4 Feb 2016 at 16
> I am curious: why and how? IIUC, neither suspend nor hibernate use
> swap. Or have I misunderstood?
>
> Hibernate, in particular, saves everything to disk so RAM should not be
> an issue. I could see, maybe, how suspend may need some swap, mind you,
> as it does use RAM but very little over a
On 02/04/2016 07:52 PM, real bas wrote:
> So, what you say is if you don't have, you can't hibernate?
Exactly. Without swap, only suspend will work, but not hibernate.
--
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On Thursday, 4 Feb 2016 at 16:12, f...@bluewin.ch wrote:
> Hi,
> swap space is crucial if you suspend or hibernate your system.
I am curious: why and how? IIUC, neither suspend nor hibernate use
swap. Or have I misunderstood?
Hibernate, in particular, saves everything to disk so RAM should not
> How much swap space does 4GB ram ideally requires ? I have been using the
> rule "RAM size x 2" for calculating the size of swap. But as the RAM sizes
> are bigger nowadays, is this a wrong calculation ? I mean, is it okay if I
> use 1 GB of swap space (or lesser) for a 4gb RAM ?
>
> (I use to s
I think that's a good idea. I will create a swap file instead of a swap
partition, so that I can monitor and change it easily at a later point of
time. In that case, I will partition my SSD as a single 120GB ext4, which
is having a 5gb swap file.
On 04-Feb-2016 9:50 PM, "f...@bluewin.ch" wrote:
>
I have never monitored my RAM usage. I have been allocating RAM Size x 2
until now for all my systems.
On 04-Feb-2016 9:32 PM, "Matus UHLAR - fantomas" wrote:
> On 04.02.16 21:12, Jos Collin wrote:
>
>> How much swap space does 4GB ram ideally requires ? I have been using the
>> rule "RAM size x
Hi,
swap space is crucial if you suspend or hibernate your system. If you want
to be able to do that, your swap should be at least the same size of
your RAM. That said, the old rule "RAM size x 2" had sense some time
ago, with much smaller sizes than nowadays. Nowaday it's not really
I guess it depends on your RAM usage. Currently I have an 8GB RAM laptop
but my usage never goes beyond 6GB (even doing scientific computations)
so I didn't bother allocating more then 1GB for my swap partition.
On 02/04/2016 01:49 PM, Leslie S Satenstein wrote:
-
On 04.02.16 21:12, Jos Collin wrote:
How much swap space does 4GB ram ideally requires ? I have been using the
rule "RAM size x 2" for calculating the size of swap. But as the RAM sizes
are bigger nowadays, is this a wrong calculation ?
yes.
I mean, is it okay if I
use 1 GB of swap space (or
I think that 4GB of RAM is not that big nowadays so the "RAM size x 2"
still holds. If you go over 8GB then it might be an overkill.
It depends though what kind of stuff you 're gonna use the system for.
If you want to run many applications that will require in general much
more than
"total RAM
Hello,
How much swap space does 4GB ram ideally requires ? I have been using the
rule "RAM size x 2" for calculating the size of swap. But as the RAM sizes
are bigger nowadays, is this a wrong calculation ? I mean, is it okay if I
use 1 GB of swap space (or lesser) for a 4gb RAM ?
(I use to suspe
Even Android/ARM is going to use 64bit as a standard... so I would use
everywhere (desktop/notebook/server/hypervisor/virtual guest) 64bit arch,
except for ultra-small systems, as a small virtual server with 512Mb or
Raspberry/embedded systems or very old system <1Gb of Ram. In many new
systems, li
Hi Jos :)
Yes, there are some performance benefits but it really depends on the
scenario. Many Linux applications have lived a lot longer in a 32bit
environment hence they are better tested than their 64bit counterparts. As
for the minimum RAM required it's the same as the 32bit version (see
http
On 04.02.16 18:04, Jos Collin wrote:
Yes, I'm using PAE enabled kernel at the moment. So from your replies and
from the stackexchange url, I understand that using 64 bit Debian is better
and having better performance than 32-bit. Unless there is a good reason to
use 32-bit OS. So I would like to
Yes, I'm using PAE enabled kernel at the moment. So from your replies and
from the stackexchange url, I understand that using 64 bit Debian is better
and having better performance than 32-bit. Unless there is a good reason to
use 32-bit OS. So I would like to go for a 64-bit Debian installation. Wh
Hi, Jos :)
Well, in order to produce 64bit binaries you would need a 64bit system
(although maybe with QEMU you can omit that but it's not worth it).
RAM-wise it's no problem to stay with 32bit because of the PAE (physical
address extension) that is a feature of the Linux kernel that you either
a
Thanks for the quick response.
I'm planning to use the system for programming purposes. Like C++, java,
python, Qt, eclipse, Android studio, ssh, ftp etc. I will be using icedove,
iceweasel all the time.
Will 64-bit programs slows down the system, as it doubles the memory
allocation than 32-bit p
Hello,
I have been using Debian in my Lenovo Thinkpad T61 from 2007 onwards. I
have the latest upgrade Stretch/sid on it.
This laptop has Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40 GHz and was
having 2GB RAM. But this week I have upgraded the RAM to 4GB and
replaced the HDD with a new Intel SSD
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