When I tried to use the @react-pdf/renderer package (version 3.0.1) with a React 18 app, two problems arose. In this article, I'll describe those problems and tell you how I solved them.
Update: Here's a video demonstration of the problems and solution described in this article: https://youtu.be/YZP5r7Uy_bU
| import prometheus_client | |
| import time | |
| import psutil | |
| UPDATE_PERIOD = 300 | |
| SYSTEM_USAGE = prometheus_client.Gauge('system_usage', | |
| 'Hold current system resource usage', | |
| ['resource_type']) | |
| if __name__ == '__main__': |
adapted from the article "Crawling anonymously with Tor in Python" by S. Acharya, Nov 2, 2013.
The most common use-case is to be able to hide one's identity using TOR or being able to change identities programmatically, for example when you are crawling a website like Google and you don’t want to be rate-limited or blocked via IP address.
Install Tor.
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
