06 2023 档案

condition_variable ,wait for unique lock and time_duration,notify_all()
摘要：#include <algorithm> #include <atomic> #include <chrono> #include <condition_variable> #include <cstdint> #include <execution> #include <fstream> #inc 阅读全文
posted @ 2023-06-29 17:09 FredGrit 阅读(12) 评论(0) 推荐(0) 编辑
c++ std::execution::par in for_each and write files
摘要：#include <algorithm> #include <chrono> #include <cstdint> #include <execution> #include <fstream> #include <future> #include <iomanip> #include <iostr 阅读全文
posted @ 2023-06-29 11:30 FredGrit 阅读(27) 评论(0) 推荐(0) 编辑
c++ lambda expression pass parameters
摘要：#include <algorithm> #include <chrono> #include <cstdint> #include <execution> #include <fstream> #include <iostream> #include <random> #include <uuid 阅读全文
posted @ 2023-06-27 14:40 FredGrit 阅读(1) 评论(0) 推荐(0) 编辑
c++ std::execution::par,std::execution::par_unseq
摘要：#include <algorithm> #include <chrono> #include <cstdint> #include <execution> #include <iostream> #include <random> #include <vector> std::random_dev 阅读全文
posted @ 2023-06-26 16:49 FredGrit 阅读(335) 评论(0) 推荐(0) 编辑
cpp condition_variable wait_for unique_mutex,chrono::seconds
摘要：#include <chrono> #include <condition_variable> #include <ctime> #include <fstream> #include <future> #include <iomanip> #include <iostream> #include 阅读全文
posted @ 2023-06-25 14:52 FredGrit 阅读(7) 评论(0) 推荐(0) 编辑
C++ multi process share value via write and read data from serialized file,the better way is shared_memory,pipeline,message queue,socket
摘要：#include <atomic> #include <chrono> #include <cmath> #include <condition_variable> #include <cstddef> #include <forward_list> #include <fstream> #incl 阅读全文
posted @ 2023-06-16 18:12 FredGrit 阅读(11) 评论(0) 推荐(0) 编辑
std::package_task bind.lambda,thread,future
摘要：#include <atomic> #include <chrono> #include <cmath> #include <condition_variable> #include <cstddef> #include <forward_list> #include <fstream> #incl 阅读全文
posted @ 2023-06-14 15:30 FredGrit 阅读(14) 评论(0) 推荐(0) 编辑
ubuntu failed to activate swap/swapfile
摘要：Copy from https://www.makeuseof.com/fix-read-error-on-swap-device-ubuntu/ sudo swapoff /swapfile Once the swap file has been disabled, you are ready t 阅读全文
posted @ 2023-06-13 10:34 FredGrit 阅读(439) 评论(0) 推荐(0) 编辑
std::atomic store load std::memory_order_seq_cst
摘要：#include <atomic> #include <chrono> #include <ctime> #include <fstream> #include <future> #include <iomanip> #include <iostream> #include <map> #inclu 阅读全文
posted @ 2023-06-12 22:07 FredGrit 阅读(24) 评论(0) 推荐(0) 编辑
cpp test write content speed to ssd and usual disk respectively 1M,10M,100M rows data,the fact has illustrated the write speed of ssd is 4-5 times faster than usual disk
摘要：#include <chrono> #include <ctime> #include <fstream> #include <iomanip> #include <iostream> #include <sstream> #include <thread> #include <uuid/uuid. 阅读全文
posted @ 2023-06-05 23:44 FredGrit 阅读(3) 评论(0) 推荐(0) 编辑
c++ condition_variable wait unique_lock,cv.notifyall()
摘要：#include <atomic> #include <chrono> #include <cmath> #include <condition_variable> #include <cstddef> #include <forward_list> #include <fstream> #incl 阅读全文
posted @ 2023-06-05 17:58 FredGrit 阅读(9) 评论(0) 推荐(0) 编辑
c++ tree data structure
摘要：//tree.cpp #pragma once #include <iostream> class node { public: int data; node *left; node *right; node(int val) { data = val; left = NULL; right = N 阅读全文
posted @ 2023-06-05 15:22 FredGrit 阅读(13) 评论(0) 推荐(0) 编辑
nohup execute command,both write info to file and print on console
摘要：nohup ./h1 >>write.log |tail -f write.log 阅读全文
posted @ 2023-06-04 09:44 FredGrit 阅读(5) 评论(0) 推荐(0) 编辑

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