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Questions tagged [fragmentation]

An unefficient usage of disk storage in memory or hard drive.

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Operating Systems - Internal and External Fragmentation

In the case that I have 1Mb block of memory as follows: +----------------------------------------------------------------------------+ | 1Mb | …
Ettienne Van Zyl
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Can fixed partitioning suffer from external fragmentation?

Is it possible for fixed sized partitioning to suffer from external partitioning? My sir said it's not possible and that fixed sized partitioning can only suffer from internal fragmentation. But consider this case, a fixed sized memory of 30Kb,…
Jack Stevens
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tcpdump packets are captured before fragmentation

I have a setup as below. [ Host A ] <-> [Rtr-A] <-> [Rtr-M] <-> [Rtr-B] <-> [ Host B] I have set MTU of out interface of Rtr-A interface (…
user2677279
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Is there a disk access in every page fault?

My question is (as stated) is there an access to the disk/virtual memory every time there is a page fault? If not, in what cases is there no disk access? (this is a general question about paging and not implementation dependent) Thank you
Tom
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Object Array to Byte Array - Marshal.AllocHGlobal Fragmentation query

I didn't think it fair to post a comment on Fredrik Mörk's answer in this 2 year old post, so I thought I'd just ask it as a new question instead... NB: This is not a critiscm of the answer in any way, I'm simply trying to understand this all…
Smudge202
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worst case external fragmentation in buddy memory systems

Unfortunately, I can't find any freely available text with an estimation of worst case (external) fragmentation overhead in (binary) buddy memory system. I've found only something like M(1+lg2 m) , without any proof. This expression estimates(?) a…
user396672
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Is it possible for collections to get fragmented?

Consider registering entrance of new members in a Dictionary and the time of entrance: Dictionary members = new Dictionary(); members.Add("Bob", DateTimeNow); Thread.Sleep(1000); members.Add("Joe",…
Xaqron
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fragmentation free data structure for accumulate several sensor floating data stream

I'm consuming incoming data stream of 20-25 packets per second per sensor with floating values (e.g. temperature) and want to accumulate and produce a 1 per second outcoming data stream. I'm looking for a (ready to use) data-structure to avoid…
fiorentinoing
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Fragmentation using YoKeyword

I just migrated to AndroidX on my project, I got the following error from yokeyword.fragmentation. This is my error. E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.macbookpro.glamz, PID: 9001 java.lang.NoSuchFieldError: No field…
Andreas Bagus
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Packet Fragmentation With Raw Sockets + IP/UDP Headers

I made a C program that basically sends UDP packets to a destination on Linux (Ubuntu 18.04). I am trying to send out packets larger than the network interface's MTU size (and therefore, should be fragmented). However, whenever I attempt to do so,…
Christian Deacon
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Android, Canvas and Screens

I think I've got quiet a common problem in regards to Android development, but cant seem to find the answer I'm looking for. If I make a canvas on Photoshop 800x480px (240ppi) and make a logo within that canvas that is 282 x 121px, I cant understand…
Stevanicus
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Does use of hash tables cause memory fragmentation?

My understanding of hash tables is that they use hash functions to relate keys to locations in memory, with a total number of "buckets" pre-allocated in memory. The goal is for there to be enough buckets that I don't have to use chaining, slowing my…
Tal
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What is fragmentation in APC and how should I interpret it to tweak my settings?

What is fragmentation in APC and how should I interpret it to tweak my settings? All in the title :) I hope.
JohnT
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My app fails with Parcel error when Implementing startForResult

I've got a Container with multiple fragments. I tried implementing the following in the first fragment and then sending back data using a Bundle from the second fragment. @Override public void onFragmentResult(int requestCode, int resultCode,…
ibyte
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(SQL Server) How to defragment indexes with LOBs?

In SQL Server, are there some points on defragmenting indexes with LOBs? Such as text, ntext, image, varchar(max), nvarchar(max), varbinary(max), xml. Thanks.
Just a learner
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