Recent questions tagged Memory

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memory - when does python delete variables?

I know that python has an automatic garbage collector and so it should automatically delete variables when there are no more ... = [0] print(y0) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - Determine free RAM in Python

I would like my python script to use all the free RAM available but no more (for efficiency reasons). I can ... the free RAM at run-time? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - JMeter OutOfMemoryError

I am facing below OutOfMemor errors, and JMeter stops working.... java.lang.OutOfMemoryError: Java heap space Dumping ... . Can anyone help me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - Windows - Commit Size vs Virtual Size

i would like to know the exact difference between Commit Size (visible in the Task Manager) and Virtual Size ... included in these parameters. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - How to read from pointer address in Python?

I want to read in a Python script a number of bytes starting from a specific address. E.g., I want to read ... method also. How can I do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - External allocation too large for this process in Android

I'm getting "external allocation too large for this process" errors in my app. Lots of these at once: ... these errors? Any additional pointers? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - .NET Collections and the Large Object Heap (LOH)

Are .NET collections with large number of items apt to be stored in the LOH? I'm curious about List and ... like to know for sure. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - How to get the list of all initialized objects and function definitions alive in python?

Say that in the python shell (IDLE) I have defined some classes, functions, variables. Also created objects ... active in the memory? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - C++: Fast way to read mapped file into a matrix

I'm trying to read a mapped file into a matrix. The file is something like this: name;phone;city Luigi Rossi; ... it to speed up my code. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - Increase heap size in java for weka

I'm trying to increase the heap size in java for weka which keeps crashing. I used the suggested line: > ... what this means. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory leaks - Valgrind and Java

I want to use Valgrind 3.7.0 to find memory leaks in my Java native code. I'm using jdk1.6.0._29. To do that ... has any idea on what I can do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - Interpreting the verbose output of ptxas, part I

I am trying to understand resource usage for each of my CUDA threads for a hand-written kernel. I compiled my ... output of ptxas, part II See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory leak detecting in C++ with/without Visual Leak Detector

I want to detect memory leaks of my C++ program in Windows. I read the documentation also on MSDN about ... 3D 0B 00 Object dump complete. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - How to solve munmap_chunk(): invalid pointer error in C++

I have an application in C++ and OpenCV which tries to use the classification model realized with SVMLight in order to ... = by 0x804E54F: std::vector<float, std::allocator<float>...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - Difference between release and dealloc in objective-c

When deallocing a refrence I've seen release and dealloc being used for example -(void)dealloc { [foo release]; ... dealloc to be used? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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431 views

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memory segmentation - Difference between DPL and RPL in x86

Reading intel x86 Manual and other sources, i did not understand the difference between DPL (Descriptor privilege level) ... ? Thank you so much See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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652 views

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memory management - What is the use of __iomem in linux while writing device drivers?

I have seen that __iomem is used to store the return type of ioremap(), but I have used u32 in ARM ... circumstances should I use it exactly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - Does C++11 have wrappers for dynamically-allocated arrays like Boost's scoped_array?

I often need to deal with dynamically-allocated arrays in C++, and hence rely on Boost for scoped_array, ... to continue relying on Boost? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - Difference between physical addressing and virtual addressing concept

This is a re-submission, because I am not getting any response from superuser.com. Sorry for the ... in some simple architecture. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - Differences or similarities between Segmented paging and Paged segmentation?

I was studying combined paging/segmentation systems and in my book there were two approaches to this : 1.paged ... would be deeply appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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494 views

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memory management - iPhone crashing when presenting modal view controller

I'm trying to display a modal view straight after another view has been presented modally (the second is a ... :loader animated:YES]; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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429 views

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memory management - Why does `free` in C not take the number of bytes to be freed?

Just to be clear: I do know that malloc and free are implemented in the C library, which usually ... about other possibilities, though. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - What determines Java object size?

What contributes to the size of a single object in memory? I know that primitives and references would, but is ... the length of them matter? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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512 views

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memory management - Calculating Page Table Size

I'm reading through an example of page tables and just found this: Consider a system with a 32-bit logical ... the actual page table takes up? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory management - Difference between sequential write and random write

What is the difference between sequential write and random write in case of :- 1)Disk based systems 2)SSD [Flash ... correct me if I am wrong. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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601 views

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memory leaks - Is this object-lifetime-extending-closure a C# compiler bug?

I was answering a question about the possibility of closures (legitimately) extending object-lifetimes when I ran ... -handler) into programs. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

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memory leaks - How to prevent file locking when undeploying a Tomcat web app?

I am using the manager app in tomcat 7, and i am unable to undeploy an application completely. It says FAIL ... re-deploy process run smooth ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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memory - C++: Uninitialized variables garbage

int myInt; cout << myInt; // Garbage like 429948, etc If I output and/or work with uninitialized variables ... 1234 Is it just random garbage? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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