What is Threads feature?
The threads setting determines the number of concurrent threads or URL requests. As can also be seen from the delay setting, the Kitt cache crawleris probably the only cache warmup crawler that works in multithread mode and therefore requests URLs simultaneously and not serially, like almost allother cache crawlers. This methodology significantly explores the high crawl speed of the Kitt Cache Crawler. The cache warmup is not a harmless process.This applies in particular to the multithread method, since the server load can be much higher than with the serial method, which always requests URLs oneafter the other. With the threads setting, you not only determine the crawl speed directly, but also the resulting server load.
Although the default value of 3 has proven to be the best value for all types of hosting after numerous tests, this recommended value is only recommended if thetype of hosting is not generally too weak for the requirements. This is especially true when using WooCommerce on shared hosting. WooCommerce places very highdemands on a server, so that even a Virtual Private Server (VPS) is often insufficient. If you are running WooCommerce on shared hosting, we strongly advise youto initially set the threads value to 1. Observe the displayed server load while crawling. If, in particular, the percentage value rises significantly above 50%or even higher, it is not recommended to increase the threads value.
If you have a VPS or a dedicated server, don't let the supposedly good performance of your server tempt you to set the standard value well above the recommended value.Although the manufacturer of the LiteSpeed web server states that this web server can handle an infinite number of simultaneous requests, this statement only refersto the web server and ignores the resource consumption and load conditions. A value higher than the recommended value does not necessarily mean faster crawling and asuccessful cache warmup. Rather, it is the case that a value that is too high can significantly reduce the success rate for successful caching.
The recommended value 3 guarantees you an error-free result and allows the cache warmup of up to 200,000 URLs per hour, which should be fast enough in any case!