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Questions tagged [starvation]

Starvation is the indefinite postponement of a process because it requires some resource before it can run, but the resource, though available for allocation, is never allocated to this process.

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Detecting/Diagnosing Thread Starvation

I am doing some performance/scalability testing of an IIS application that occasionally seems to slow down to a crawl in production. I'm able to reproduce the slowness consistently using NUnit. CPU and Memory do not spike during the testing, or…
Phil Sandler
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Is there a maximum number of CPU's that a VirtualBox could bare?

I am using VirtualBox 5.1 running in a host with 48 CPU's and 250GB of RAM the virtual machine that I am importing (the guest) initially had 2 CPU's and 4GB of RAM. Inside this machine I am running a process with Java that starts a dynamic number of…
Frederick Álvarez
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Understanding BLOCKED_TIME in PerfView

We are suspecting that we're experciencing thread pool starvation on a server that is running a couple of ASP.NET Core APIs and a couple of .NET Core consoles. I ran perfview one one of our servers were we are suspecting problems with thread pool…
Joel
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Starvation prevention in priority queue

As everyone knows, a priority queue can create starvation for lower priority items in its simplest form. For example, assume that we have following items in a priority queue in increasing priority order: Item Priority -------------------- Item A…
Afshin
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How linux process scheduler prevents starvation of a process

I have read that linux kernel contains many schedule classes each having it's own priority. To select a new process to run, the process scheduler iterates from the highest priority class to lowest priority class. If a runnable process is found in a…
Shivam Mitra
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Starvation in the dining philosopher problem

I've been looking at a solution for the dining philosopher problem on wikipedia. The resource hierarchy solution I understand how it works and how breaking the circular structure prevents deadlocks but how does the solution prevent starvation?…
John Slaine
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What is Starvation scenario in Spark streaming?

In the famous word count example for spark streaming, the spark configuration object is initialized as follows: /* Create a local StreamingContext with two working thread and batch interval of 1 second. The master requires 2 cores to prevent from a…
Jitender Yadav
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How to let a writer thread starve

I've written an implementation of the reader-writers problem using shared_timed_mutex of C++14. In my opinion the following code should cause the Writer to starve since too many reader threads are working on the database (in this example a simple…
kimsay
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How is this One-Lane Bridge problem solution not starvation-free?

I have here a one-lane bridge problem solution. I was wondering how this solution is not starvation-free? The problem is that cars coming from the north and the south arrive at a one-lane bridge. Cars heading in the same direction can cross the…
HotWheels
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Small pods starving big pods on an oversubscribed Kubernetes cluster

Our group has recently set up a 3-node Kubernetes cluster, and we've been using Jobs to schedule batch processing tasks on it. We have a lot of work to do and not a particularly large cluster to do it on, so at any given time there are a bunch of…
interfect
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Starvation vs Convoy Effect

Is the only difference between starvation and convoy effect that convoy effect is mainly defined on FCFS scheduling algorithms and starvation is on priority based scheduling? I researched on both effects but couldn't find a comparison. This is based…
Mithun Wijethunga
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ignite: possible starvation in striped pool with igniteCache

there: I got the error when use ignite cache. My system select a master node use zookeeper,and has many slave nodes.The master process ignite cache expired values and put in an ignite queue.The slave node provide data into ignite cache use…
茅破天
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Heap_lock starvation in garbage collector

Garbage collector threads appear to get starved waiting for Heap_lock. Here is a stack trace of a GC thread + 5480 _pthread_start (in libsystem_pthread.dylib) + 168 [0x7fff9255191a] + 5480 _pthread_body (in libsystem_pthread.dylib) + 131 …
Greg
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How does PHP flock prevent starvation?

I have a question regarding PHP flock() function: How PHP flock() can prevent starvation of a process? If there is a process R constantly wanting to read a file and a process W that wants to write in the file whenever reading is complete (wants an…
Long Le
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Sleep a thread to avoid thread starvation

I have a thread that's running in infinite loop executing some code, which will acquire a Lock. Meanwhile I have another thread doing scheduled task that also need to acquire the lock to do something. To ensure that the scheduled task won't be…
waynewingorc
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