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The time now is Wed 19 Jun 2013, 02:47 All times are UTC - 4 |
 Forum index » House Training » Beginners Help ( Start Here) |
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Understanding swap partitions - SOLVED!
Moderators: Flash, Ian, JohnMurga |
 
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VictorVictor5
Joined: 23 May 2012 Posts: 127 |
Greetings everyone, Ok, after going back and reading the help notes, I want to see if I'm on the right track with swap partitions. Please correct me if I'm wrong. A swap partition is basically "emergency RAM" that can help out out systems when running programs. A general rule of thumb is 2 x RAM, so in my case 384 MB x 2 = 768 MB partition for swap partition (so in essence it will give me 1 GB memory - 768 MB swap + 384 onboard RAM). The swap partition should be formatted ext2. Am I way off here? Thanks! VV5 Edited_time_total |
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bark_bark_bark
Joined: 05 Jun 2012 Posts: 507 Location: the never ending bootsplash |
there is a special type of format for swaps partitions. But don't use a swap on: -a Flash Memory Card (SD, MicroSD, CompactFlash, etc.) -USB thumb drive -Solid State Drives _________________ ... |
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Flash
Official Dog Handler  Joined: 04 May 2005 Posts: 9908 Location: Arizona USA |
As I understand a swap partition, it has no specified or defined filesystem, so it is not formatted in the usual sense of the word. It is just.....swap. Virtual memory. Puppy uses it if it runs out of RAM, which is unlikely with 384 MB of RAM unless you watch video or do things with very large files such as image files. In any case, if you can add more RAM to the computer, I highly recommend that you do it. |
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James C
 Joined: 26 Mar 2009 Posts: 4768 Location: Kentucky |
Might help... http://ubuntuforums.org/showthread.php?t=1369433 A hint...... one of the options in GParted is "linux-swap". |
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amigo
Joined: 02 Apr 2007 Posts: 1776 |
The partition type should be '82'. Linux partitions meant for filesystems are type '83'. As Flash sort of points out, they need not be formatted with any filesystem at all. Instead of being formatted as a filesystem, they are formatted as swap space using the 'mkswap' command -which basically just divides the partition into 4K 'pages'. |
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VictorVictor5
Joined: 23 May 2012 Posts: 127 |
Cool - thanks everyone for their feedback. James C - saw what you were talking about in GParted. Just went that way. Thanks! VV5 |
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jpeps
Joined: 31 May 2008 Posts: 2449 |
wrong....maybe 2gigs and over, but you'll be using it all the time to initialize programs, etc, with 384 MB. |
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capicoso
Joined: 13 Jan 2012 Posts: 169 Location: Argentina |
In a 32bit puppy i could never break 1gb ram. I do lot of audio work, lots of programs running at the same time with jack, also some video. On a 64bit yes, i'm at >1gb easily |
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Flash
Official Dog Handler Joined: 04 May 2005 Posts: 9908 Location: Arizona USA |
For over 5 years I've run various Puppys exclusively from multisession DVDs. Currently my computer has 4 GB of RAM, but for the first few years after I started using Puppy my computer had first 256 MB then 512 MB of RAM, and no hard disk drive, thus no swap memory. Puppy never ran out of RAM in that computer except once, when I tried to install OpenOffice. That's what I based my statement on.
Actually using flash memory for swap is reported to work well. Even Windows uses it. 
Flash drive controllers spread the writes around so that the "wear" is not concentrated in one area. Writing to a flash memory is what "wears" it out, but it takes 100,000 to 1,000,000 writes before errors begin to creep in. That would be many years for most applications. Even then, error correction codes are used so that no data is lost as long as only a few errors occur. |
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Dewbie
Joined: 15 Apr 2010 Posts: 1456 |
Flash wrote:
I run a range of Puppies, from 4.1.2 to Wary 5.2.2. Max RAM usage with this setup is about 317MB, regardless of version. (Specs: PII / 350MHz / 320MB RAM / 267MB swap) |
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RetroTechGuy
 Joined: 15 Dec 2009 Posts: 2303 Location: USA |
I find that Firefox regularly leaks all over my RAM, eating all of my 1GB RAM (I should note that my machine with 2GB doesn't seem to do that). _________________ Wellminded Search Add swapfile |
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jpeps
Joined: 31 May 2008 Posts: 2449 |
Noticed this link; might be worth a try http://support.mozilla.org/en-US/questions/939920 |
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RetroTechGuy
Joined: 15 Dec 2009 Posts: 2303 Location: USA |
Thanks, I look into that. I've been using a script to clean the RAM cache (I think that Bruce wrote the functional piece -- I like to monitor it's action). Whenever FF starts acting goofy, I run it a couple times...
_________________ Wellminded Search Add swapfile |
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jpeps
Joined: 31 May 2008 Posts: 2449 |
That probably won't do it. Run a search on caches in /root and everything is still there. Try RamBack and Memory Restart...you can monitor and clear it easily. |
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RetroTechGuy
Joined: 15 Dec 2009 Posts: 2303 Location: USA |
Actually, that does drive the crud out of the RAM (which is the problem). FF (or something related to FF) loads up the RAM to just under 1GB, that operation will usually push the used RAM down to 3-400 MB. I added in some of the tools you recommended, and it seems to behave a little better. Still effectively overflowed once (the one widget shows RAM usage -- and that time it was at 600MB), but I was pushing it pretty hard (lots of open tabs). Once place where it regularly clogs up is Facebook (and it will generally load up there, with only 1 or 2 tabs open -- I'll see how the add-ons help). For reference, I just opened FF, and went straight into Murga. I have 2 tabs open, and the FF monitoring plug-in is showing between 140 and 150 MB used for FF. That behavior really cramps a low RAM machine. Edit: Now that's interesting. The FF monitoring too is showing 140MB, but top shows VSZ as 448M (47% of RAM). I'll have to do some reading to see what the monitoring tool is tracking... _________________ Wellminded Search Add swapfile |
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Understanding swap partitions - SOLVED!
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