Using C to Optimize SEO-related Data Processing with Multithreading
I've searched everywhere and can't find a clear answer. I'm wondering if anyone has experience with I've been banging my head against this for hours. I'm integrating two systems and Can someone help me understand I'm working on a personal project and Currently developing a system that processes large datasets for SEO optimization. The project requires efficiently parsing and analyzing web page metadata in C. To enhance performance, I’m trying to implement multithreading for handling multiple pages simultaneously. I've started with the pthreads library but have run into synchronization issues when accessing shared data structures. Here's a snippet of what I've been working with: ```c #include <stdio.h> #include <stdlib.h> #include <pthread.h> #define NUM_THREADS 4 #define MAX_PAGES 100 typedef struct { int page_id; char metadata[256]; } Page; Page pages[MAX_PAGES]; void *process_page(void *arg) { int id = *(int *)arg; // Simulate processing with dummy data printf("Processing page %d: %s\n", pages[id].page_id, pages[id].metadata); return NULL; } int main() { pthread_t threads[NUM_THREADS]; int thread_ids[NUM_THREADS]; // Initialize page data for(int i = 0; i < MAX_PAGES; i++) { pages[i].page_id = i; snprintf(pages[i].metadata, sizeof(pages[i].metadata), "Meta data for page %d", i); } for(int i = 0; i < NUM_THREADS; i++) { thread_ids[i] = i; pthread_create(&threads[i], NULL, process_page, (void *)&thread_ids[i]); } for(int i = 0; i < NUM_THREADS; i++) { pthread_join(threads[i], NULL); } return 0; } ``` While this works for a small number of threads, the performance degrades as the number of pages increases. I suspect that the contention on shared resources might be the cause. I’m considering implementing a thread pool to manage the workload better. Additionally, logging metadata processing to a central log file is part of the requirement. However, I’ve faced issues where log entries overlap, leading to corrupted output. To mitigate this, I thought about using mutexes when writing logs, but I’m curious if there are more efficient patterns to handle logging in a multithreaded environment. Would love any insights into optimizing this setup, especially regarding thread management and safe logging practices. Also, if anyone has experience with other C libraries that might simplify this process, I’m all ears! My development environment is Linux. This is my first time working with C latest. Could this be a known issue? Thanks for taking the time to read this! I'd be grateful for any help. I'm working on a CLI tool that needs to handle this. Any pointers in the right direction? I'm on Ubuntu 20.04 using the latest version of C. Any ideas what could be causing this?