<div dir="ltr">So, I have 8G ram installed on my machine, <br>htop shows 7995MB, free shows 8186940 in K<br><br>my laptop, 4G ram,<br>htop shows 3892MB, free shows 3985452 in K<br><br>both bios tells proper size in G, which i dont know if i should say B or b<br>
<br>IF, it is just BIOS counts the mem in 1000, and the kernel counts it in 1024, where is my 5M gone on my workstation?<br><br>on the other hand, my laptop has dedicated video card, i am missing 118M if it counts 1000, and 204M if counts in 1024.<br>
<br>And, as far as I know, memory should go with 1024, not 1000<br><br>First i thought it is an aprx 2% memory reservation thing, but it does not seems on my laptop, it is 4.98%<br><br>arrrghhhhhh, math......<br><br><br><br>
<br><br><div class="gmail_quote">On Tue, Aug 12, 2008 at 4:02 PM, NoOp <span dir="ltr"><<a href="mailto:glgxg@sbcglobal.net">glgxg@sbcglobal.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On 08/12/2008 11:05 AM, Johnny Rosenberg wrote:<br>
> 2008/8/11 NoOp <snip><br>
[snip]<br>
<div class="Ih2E3d">>><br>
>> Regarding memory manufacturer's, this is interesting:<br>
>> <a href="http://www.edgetechcorp.com/support/technical-glossary.asp" target="_blank">http://www.edgetechcorp.com/support/technical-glossary.asp</a><br>
>> <quote><br>
>> MEGABIT<br>
>> Amount of memory equal to 1,048,576 bytes of data.(abbreviated MB)<br>
>><br>
>> Megabyte<br>
>> A megabyte is composed of 1024 kilobytes or 1,048,576 bytes. Megabyte is<br>
>> commonly abbreviated using 'M' or 'Mb'. NOTE: In many cases, an megabyte<br>
>> is incorrectly stated as being 1 million bytes.<br>
><br>
><br>
> No, that's not incorrect.<br>
> 1 MB=1000000 bytes<br>
> 1 MiB=1048576 bytes<br>
> This is called IEEE<br>
</div>> 1541<<a href="http://freedos-32.sourceforge.net/showdoc.php?page=standards#ieee1541" target="_blank">http://freedos-32.sourceforge.net/showdoc.php?page=standards#ieee1541</a>><br>
> .<br>
<br>
That was my point... and why I pointed to the NIST references which is a<br>
much more authoritative source. See:<br>
<div class="Ih2E3d"><a href="http://physics.nist.gov/cuu/Units/bibliography.html" target="_blank">http://physics.nist.gov/cuu/Units/bibliography.html</a><br>
</div>NIST is the US National Institute of Standards and Technology<br>
(<a href="http://nist.gov/" target="_blank">http://nist.gov/</a>) and in their bibliography they point to Le Système<br>
International d'Unites (SI)<br>
However I was wrong with regard to the semiconductor industry (see JEDEC<br>
info below).<br>
<br>
The IEC has a nice writeup here & demonstrates the differential problem<br>
as the number of bytes increases. <a href="http://www.iec.ch/zone/si/si_bytes.htm" target="_blank">http://www.iec.ch/zone/si/si_bytes.htm</a><br>
<br>
That said, Rashkae is correct in that the semiconductor industry<br>
continues to use the binary metric. The JEDEC has, for legal reasons,<br>
place a 'clarifier' in their standard - from JEDEC Standard No. 100B.01<br>
(<a href="http://www.jedec.org/download/search/JESD100B01.pdf" target="_blank">http://www.jedec.org/download/search/JESD100B01.pdf</a>):<br>
<br>
<quote - modified for ASCII to show ^ for powers><br>
giga (G) (as a prefix to units of semiconductor storage capacity): A<br>
multiplier equal to 1 073 741 824 (2^30 or K^3, where K = 1024).<br>
<br>
NOTE 1 Contrast with the SI prefix giga (G) equal to 10^9, as in a<br>
1-Gb/s data transfer rate, which is equal to 1 000<br>
000 000 bits per second.<br>
</quote><br>
<br>
The mega (M) section contains further clarification regarding the<br>
semiconductor useage and the SI prefix.<br>
<br>
So given the JEDEC standard, I wonder if the changes from 'MB or GB'<br>
(Gutsy) to 'MiB or GiB' to reflect _memory_ in the Hardy System Monitor<br>
is correct. As you said, it certainly would be so much easier if<br>
everyone followed a single published standard. :-)<br>
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