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13

No, RAM doesn't retain anything when the power is removed from a module. While it may be possible to add this functionality using a small flash RAM chip over and above the "normal" RAM, it would add to the cost and complexity. Futhermore, flash RAM has a limited number of writes, which means that the Flash RAM will probably reach the write limit way ...


12

With a 32-bit kernel, you only have 4GB of available address space. Some of this address space has to be used by the (virtual or physical) hardware in the system, such as video cards, NICs, etc., for their own purposes. This usage is usually between 256MB-1GB depending on how much address space the particular hardware needs. Since that address space is used ...


4

What Lifeboy wrote - no RAM modules are equipped with anything like SMART, like a hard drive, so you cannot have a report of power up time or read/write cycle count... (cycle counts would be pointless as well, as there would have to be billions of entries, as not all "bits" are read/written evenly - some bits might be overused, and others may never be used). ...


4

This is not a technical problem. It is a problem of business relationships, and as such not (to my mind) particularly on-topic for ServerFault. From inside a host you generally have no way of seeing what the hosting server is doing - that's the whole point of a VPS. Even if the hosting technology provided such a conduit, they control the hosting server so ...


3

The output of the free command does not count reserved kernel memory and a few other small bits. You will see this discrepancy even in a 64-bit kernel and even with <2GB RAM.


2

I would search on the official Dell part number. It's not about the OEM for RAM like this. It's about the compatible part numbers (from Dell's perspective). Buy SNPX3R5MC/8G.


2

On linux you can use e key to change task memory scale, ranging from bytes to petabytes. When you have selected what you like, press W (shift + w) to save changes to ~/.toprc.


2

The critical line from your physical RAM map is this one: BIOS-e820: 0000000100000000 - 0000000140000000 (usable) This line shows that 1 GB (0x40000000 bytes, hexadecimal) of your system's physical RAM is being mapped by the BIOS above the 4GB limit, making it inaccessible by a 32-bit system without PAE.


1

Unless you are downloading the file to /dev/shm or a tmpfs file system wget, by itself, shouldn't be using gigabytes of memory. Heck, it shouldn't even be using megabytes worth. It is highly unlikely that wget is consuming that much memory. How are you checking its usage? If you run top -o RES it will sort by memory (non-shared) utilisation. Ignore the ...


1

Windows will only give memory to a process if and when the process asks for it. Windows won't give away memory to processes that don't ask for it, even if it has plenty of free memory. Looks to me like Python isn't asking for any more than 243MB of memory. Why do you feel like this Python script should be requesting more memory from the operating system? ...


1

This question is on the borderline of shopping, but I can tell you our experience with those servers. Dell, like any other server vendor, wants your unborn children for upgrades after you've bought a server. My solution was to replace all the RAM in the system with Kingston system-specific memory, which have a lifetime guarantee and is 100% compatible. ...


1

Ghost runs a single node process per instance. I believe what you're seeing there is that htop shows the underlying threads of processes, so it looks like you have one Ghost instance running but node/v8 has five active threads. Despite JavaScript being single-threaded, the engine/vm itself can be multi-threaded. We (the Ghost project) do pay attention to ...


1

If I'm understanding your question and the concern is about what memory is share-able between container instances, then the answer to that question for shared libraries is that it depends. Quoting: https://groups.google.com/d/msg/docker-user/wCDC_sXzbks/i1gjlgQbxWEJ The second benefit is that copy-on-write and page sharing apply to all processes on the ...


1

Unfortunately, dmidecore requires root privileges. Another way to retrieve values, more accurate than MemTotal in /proc/meminfo : $ dmesg | gawk '/BIOS-e820/&&/usable/{tot+=strtonum("0x"$4)-strtonum("0x"$2)}END{print "Total RAM: "tot/1048576" MB"}'



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