An unefficient usage of disk storage in memory or hard drive.
Questions tagged [fragmentation]
189 questions
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1 answer
Trim dynamicBuffer to maintain size
I'm using ChannelBuffers.dynamicBuffer() to manage fragmentation of unknown size messages over a network using Netty. My question is, when I readBytes(...) from the buffer, do the bytes that got read automatically get "trimmed" from the buffer so it…
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Insert Into Using OpenQuery Causes Massive Fragmentation
I use the following code to import a table from an Oracle DB to SQL Server every day:
TRUNCATE TABLE mytable
INSERT INTO mytable (firstname, lastname, city, state)
SELECT * FROM OPENQUERY (mylinkedserver, 'SELECT firstname, lastname,
city, state…
Lloyd Banks
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File fragmentation when data changes
If i add some letters to middle of file is that operation make file fragmentation?
I just want to store data to file and sometimes update them. So...when i made many changes is it may be bad for perfomance issue?
Neir0
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Fragmenting a table for distribution ORACLE SQL
Is there any subset of sql that deals specifically with horizontally fragmenting a table for distribution?
I have to fragment a stock table to be distributed between stores. Im not looking for a complete solution just a nod in the right direction.
I…
Dylan Jackson
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Will allocations with short lifetimes cause heap fragmentation?
Suppose I have the following:
std::string TestFragmentation()
{
std::vector buffer(500);
SomeCApiFunction( &buffer[0], buffer.size() ); // Sets buffer to null-terminated string data
return &buffer[0];
}
Will the above vector,…
void.pointer
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1 answer
External & Internal Fragmentation - Where it happens?
Is it possible to say that internal fragmentation occurs only in physical memory and external fragmentation occurs only in virtual memory ?
If we can't say that, could you explain where internal and external fragmentation can happen ?
Khan9797
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1 answer
Disk fragmentation calculation
So if I have disk with 10 free spaces. Add two files, A with size 3 and B with size 4.
A A A B B B B - - -
After removing A, - - - B B B - - -
Is now B fragmented or not?
juku
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- 4
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1 answer
Win32 HeapCreate() initialSize doesn't support big allocations
We have a problem with using of HeapCreate()/HeapAlloc() for big allocations (> 512K)
We are developing a C++ server application performing some 'image processing' operations concurrently on a few images. It should work for a long time without…
vadimus
- 21
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3 answers
How to transmit a file larger than 65,536 bytes using IPv4
I wanted to know if there is any way to send larger files than 65,536 bytes by using IPv4
