disk

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What determines cache speed?

I have a progra开发者_如何学Pythonm that reads from a file and performs operations on it (count frequencies of words)....Ihave 4 different file sizes, i get cache speed on all but the largest.Why does[详细]

2023-03-04 18:01 分类：问答
Plug-and-play API for detecting/interfacing Flash drive insertions?

Is there a way to provide a call to a user-define开发者_JAVA百科d program after a plug-and-play flash drive has been inserted and detected by Windows?No, Microsoft finally figured out that autorun pro[详细]

2023-03-04 00:38 分类：问答
LBA and cluster

I wonder about LBA and cluster number. My question is this: is LBA 0 always cluster 2? then what does cluster 0 and 1 for?[详细]

2023-02-28 17:00 分类：问答
Multiple disk read/write operations can cause bottleneck?

I\'ve been doing a lot of work where I concurrently access one file from 30+ processes (via 4 nodes mounted on NFS) and was wondering if, besides the bandwith bottleneck, there is an advantage to havi[详细]

2023-02-27 23:26 分类：问答
Storing entire process state on disk and restoring it later? (On Linux/Unix)

I would like to know: Is there a system call, library, kernel module or command line tool I can use to store the complete state of a running program on the disk?[详细]

2023-02-25 06:40 分类：问答
How to read FAT Table in Assembly Language [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this[详细]

2023-02-18 19:44 分类：问答
Which is Better? Cache on a Disk File or Cache in a Temporary Table in MySQL

the question is very self-explained, in matter of performance and all, which way is better to store little amounts开发者_StackOverflow of data? MySQL or Small File in a Cache folder?[详细]

2023-02-18 06:17 分类：问答
issuing a disk read from bottom-half of device driver

In a Xen setup, IO accesses from guest VMs go through a privileged domain called dom0 that is just a modified Linux kernel which has calls from and to the XEN hypervisor. For block IO, they have a spl[详细]

2023-02-17 20:35 分类：问答
Determine what physical hard drive a file is on?

How can I find the physical drive a file/direct开发者_开发百科ory is located on. I want to compare 2 files and if they are on two separate drives, then I can speed up the compare by reading both simul[详细]

2023-02-15 05:26 分类：问答
Boost mutexes and semaphores on disk or in memory?

I would like to know if Boost mutexes and semaphores store any infor开发者_StackOverflow中文版mation on the disk, or if there is an option to avoid that (e.g. storing the data in a memory block).[详细]

2023-02-14 11:48 分类：问答