Comments on: How can it all fit? http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/ K.Mandla's blog of Linux experiences Mon, 11 Feb 2013 18:19:59 +0000 hourly 1 http://wordpress.com/ By: K.Mandla http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-41606 Tue, 12 Jan 2010 13:08:59 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-41606 Thanks. This one must’ve slipped through the cracks. … ;)

]]> By: Calvin http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-41605 Tue, 12 Jan 2010 12:01:24 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-41605 I see some addddsssss…..

I hate ads.

]]> By: vm.overcommit_memory and _ratio « Motho ke motho ka botho http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40397 Sun, 13 Sep 2009 11:50:04 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40397 [...] and _ratio Published 2009/09/13 Linux Leave a Comment I took a cue from Kyle and checked out the vm.overcommit_memory and vm.overcommit_ratio settings in sysctl.conf, but I [...]

]]> By: Kyle http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40348 Tue, 08 Sep 2009 22:15:55 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40348 Been reading your blog. Some pretty neat stuff.

What you’re seeing has to do with overcommiting memory.

See, most C programs request more memory than they actually need, so the kernel plays along and hands out more memory than it really has.

There’s a lot of technical explanations of this, but basically, most processes ask for far more than they need. Think of a kid at an all-you-can-eat buffet: If unchecked, kids will pile several plates full of mashed potatoes and mac & cheese, eat a few mouthfulls of it, then leave behind enough food to feed a family of four. The kernel knows this about it’s kids (processes), so it pretends to give them _everything_ they ask for, knowing that there’s no way that python is going to finish that mountain of gloopy chocolate pudding(memory) it just asked for.

Lookup sysctl vm.overcommit_memory and vm.overcommit_ratio for info on how to tune this behavior, or for a more technically sound explanation.

]]> By: Looking close at memory usage « Motho ke motho ka botho http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40236 Sat, 29 Aug 2009 13:40:23 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40236 [...] find that interesting mostly because it helps answer a long-standing question, of how it all fits. But it also puts a few things into perspective, like the fact that Musca takes up less space than [...]

]]> By: Putting the Pentium back to work « Motho ke motho ka botho http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40028 Mon, 03 Aug 2009 00:46:24 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-40028 [...] hey, I had wondered the same thing, often for weeks at a time, way back in February. How in the world did I get it working so many [...]

]]> By: An apology, and an update « Motho ke motho ka botho http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-39365 Sun, 17 May 2009 12:04:19 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-39365 [...] Of course there are the hardware quirks. And the occasionally irritating lag while one thing or another does what it’s supposed to do. And the miraculous ability to run alpine, centerim, mc, htop, calcurse, elinks, myman, screen, hnb, vim and a even a few more applications, all at the same time and all on less than 7MB of memory. How it all fits in there, I don’t know. [...]

]]> By: colonelcrayon http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38524 Sat, 21 Feb 2009 00:36:49 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38524 Looks pretty standard. Why is it so light??

]]> By: K.Mandla http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38519 Fri, 20 Feb 2009 12:58:28 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38519 Hold on to your hat. … 

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
	Option		"AllowEmptyInput" "false"
EndSection

Section "Files"
	RgbPath      "/usr/share/X11/rgb"
	ModulePath   "/usr/lib/xorg/modules"
	FontPath     "/usr/lib/X11/fonts/misc/"
	FontPath     "/usr/lib/X11/fonts/TTF/"
	FontPath     "/usr/lib/X11/fonts/OTF"
	FontPath     "/usr/lib/X11/fonts/Type1/"
	FontPath     "/usr/lib/X11/fonts/100dpi/"
	FontPath     "/usr/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
	Load  "glx"
	Load  "extmod"
	Load  "xtrap"
	Load  "record"
	Load  "GLcore"
	Load  "dbe"
	Load  "dri"
	Load  "freetype"
	Load  "type1"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules" "xorg"
	Option		"XkbModel" "jp106"
	Option		"XkbLayout" "jp"
	Option		"XkbVariant" ""
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/input/mice"
	Option	    "ZAxisMapping" "4 5 6 7"
	Option		"MinSpeed" "0.75"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "Linear"             	# [<bool>]
        #Option     "NoAccel"            	# [<bool>]
        #Option     "HWclocks"           	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "STN"                	# [<bool>]
        #Option     "UseModeline"        	# [<bool>]
        #Option     "Stretch"            	# [<bool>]
        #Option     "LcdCenter"          	# [<bool>]
        #Option     "MMIO"               	# [<bool>]
        #Option     "SuspendHack"        	# [<bool>]
        #Option     "FixPanelSize"       	# [<bool>]
        #Option     "18BitBus"           	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "Rotate"             	# [<str>]
        #Option     "SetMclk"            	# <freq>
        #Option     "FPClock8"           	# <freq>
        #Option     "FPClock16"          	# <freq>
        #Option     "FPClock24"          	# <freq>
        #Option     "FPMode"             	# [<bool>]
	Identifier  "Card0"
	Driver      "chips"
	VendorName  "Chips and Technologies"
	BoardName   "F65548"
	BusID       "PCI:0:20:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth	16
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection
]]> By: colonelcrayon http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38515 Fri, 20 Feb 2009 04:14:56 +0000 http://kmandla.wordpress.com/2009/02/15/how-can-it-all-fit/#comment-38515 Can you post that xorg.conf?

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