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Dreambox Satellite Receiver | Tutorials | Software
Dreambox 7000
memory allocation on DM 7000s
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<blockquote data-quote="wallycharlo" data-source="post: 226561" data-attributes="member: 186024"><p>the top command will show you the total amount of memory you have,along with other features such as how much is actually being used at that time.this refers to RAM (random access memory) which is volatile : ie,once you remove the power you lose all data.</p><p></p><p>From what you describe,you have 32MB of RAM and not 64.</p><p></p><p>The operating system (ie the image you are using) is stored in flash memory.this memory is non-volatile,so the data is retained once the power is removed.if this was not the case then you would need to reflash your box every time the power has been removed.as soon as you boot up your box,the operating system is copied from the flash memory into the RAM.RAM memory is very fast,and can be accessed very quicly when compared to slower flash memory.flash also needs high voltages to write to the memory,whereas RAM can operate at much lower voltages. </p><p></p><p>adding a USB stick will expand the flash memory ... so it will give you the possibility of having more cams,plugins,etc.but,it wont really enable you to run applications quicker as the amount of RAM (which is where the programs run) is still fixed.while running,your DB will constantly swap data back and forth between virtual memory (USB/hdd) and the RAM ...</p><p></p><p>in general, you can execute the command "df" in telnet,this will show you all the memory allocations</p></blockquote><p></p>
[QUOTE="wallycharlo, post: 226561, member: 186024"] the top command will show you the total amount of memory you have,along with other features such as how much is actually being used at that time.this refers to RAM (random access memory) which is volatile : ie,once you remove the power you lose all data. From what you describe,you have 32MB of RAM and not 64. The operating system (ie the image you are using) is stored in flash memory.this memory is non-volatile,so the data is retained once the power is removed.if this was not the case then you would need to reflash your box every time the power has been removed.as soon as you boot up your box,the operating system is copied from the flash memory into the RAM.RAM memory is very fast,and can be accessed very quicly when compared to slower flash memory.flash also needs high voltages to write to the memory,whereas RAM can operate at much lower voltages. adding a USB stick will expand the flash memory ... so it will give you the possibility of having more cams,plugins,etc.but,it wont really enable you to run applications quicker as the amount of RAM (which is where the programs run) is still fixed.while running,your DB will constantly swap data back and forth between virtual memory (USB/hdd) and the RAM ... in general, you can execute the command "df" in telnet,this will show you all the memory allocations [/QUOTE]
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Linux Based Receivers
Dreambox Support Forum
Dreambox Satellite Receiver | Tutorials | Software
Dreambox 7000
memory allocation on DM 7000s
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