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Whats Thrashing? Ive heard it mentioned a few times at work and dont want to ask... Probably a stupid question - any ideas?
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Thrashing is computer activity that makes little or no progress, usually because memory or other resources have become exhausted or too limited to perform needed operations.
As we saw in the above example, there can be three main causes of thrashing. High degree of Multiprogramming. Less number of frames compared to the processes required. The process scheduling scheme which swaps in more processes when CPU utilization is low.
Thrashing is a condition or a situation when the system is spending a major portion of its time servicing the page faults, but the actual processing done is very negligible. Thrashing's Causes. Thrashing has an impact on the operating system's execution performance.
To resolve thrashing you can do any of the suggestions below : *Increase the amount of RAM in the computer. *Decrease the number of programs being run on the computer. *Adjust the size of the swap file. Save this answer.
Reading through those pages :
I arrived to that one : Disk Thrashing, which states (quoting)
On a system with Virtual Memory, pages of memory are read from and written to the swap file as necessary.
Disk Thrashing is when there is excessive paging, specifically when the I/O system is busy paging memory but the CPU is not fully utilized - generally if the system is unresponsive (i.e. slow) and there is lots of disk activity then the system is likely to be thrashing.
And, of course, you might want to take a look on the Thrash (computer science) page on wikipedia ;-)
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Thraching is where a process consumes all available resources without achieving anything useful. Examples are endless loops or code that retries a failed command endlessly.
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