Advertisements I need a way to get the name and size (in megabytes if possible) of all disks in C++ on Linux (Arch to be specific). >Solution : You can simply read files from /sys filesystem. For example on my machine: chus@kagi:~$ cat /sys/block/nvme0n1/size 2000409264 Just open the file, read the number in, multiply by… Read More How to get the name and size of all disks whether mounted or not in c++
Advertisements For the basic mysql query like select * from table where c1=v1 and c2=v2 and c3=v3, I realize the latency of the query is proportional to response payload size, say return 500 rows is slower than 200 rows, which sounds reasonable to me. But my question is what makes 500 rows slower than 200?… Read More What's the rate-limiting step for mysql query, index query or disk read?
Advertisements I tried to pull a big docker image, but it failed cause of disk space. However, some download and extracting had already been proceed (like few gigabytes), so I was wondering where those data goes. Any Ideas? Futhermore, is it possible to restart the pull where it failed or I have to restart from… Read More Docker download failure management
Advertisements Let’s suppose that it takes X seconds to retrieve 100MB from disk to RAM in one retrieval. Then does that mean that it will take also X seconds to retrieve the same 100MB divided up to 100MB/N per retrieval in N retrievals, where each retrieval is roughly takes X/N seconds? >Solution : It depends… Read More Is the time it takes to retrieve data from disk to RAM linear?
Advertisements None of the threads close to the topic that I could find (like this one) helped me so far. I have a C++ program that reads some data from a file, runs pretty complex and intensive operations and then writes outputs to new files. When I let the process run for few hours, here… Read More Trying to understand why my C++ program is slowing down after running for long time
Advertisements $Users = GC "Desktop\Master.txt" foreach ($user in $users) { $userobj = $(try {Get-ADUser $user} catch {$Null}) If ($userobj -ne $Null) { Write-Host "$User Exists" } else { Write-Host "$User Doesn’t Exist" }} I am using this code to check if a user exists in AD. Later on this notepad file is processed to delete… Read More Remove Name Notepad file if doesnt exist in AD through powershell
Advertisements I have a solution with a few projects: library.dll with something.json webapp.dll winapp.exe 2 and 3 depend on 1, not on eachother. I would like copy something.json to the bin directory of winapp.exe However setting the properties to Content and Copy always doesn’t do what I expected. >Solution : You can use the Post-build… Read More How to get C# library file in output directory?
Advertisements I want to copy every .ttf file to current working directory but nothing seems to happen. I am currently using this command : find / | grep .ttf | xargs cp . The detection is fine, if i run find / | grep .ttf it gives me the exact location of every .ttf file… Read More How to get backup of all the files having a specific format in linux
Advertisements Let’s consider a class (This is not the class or code I’m using in my application, just trying to learn with this example) class Person { public int Id {get; set;} public string Name {get; set;} public int DeptId {get; set;} public string Department {get; set;} } Now let’s assume I get a List… Read More Does running a synchronous method using Task.Run() make it asynchronous
Advertisements I’m developing a software using C++ for Windows/Linux. I want to create a file (txt, json, license, you name it) at runtime, and save it somewhere. Is it possible in C++ to get the exact position of that file on disk, so that if I restart the app and read that address (or other),… Read More Is there a way to find exact location ( adress ) of file on disk?