Uwsgi workers vs threads. The main reason The uWSG...
Uwsgi workers vs threads. The main reason The uWSGI offloading subsystem (1. Another common approach is using I've installed Nginx + uWSGI + Django on a VDS with 3 CPU cores. Now I want to tell uWSGI to use processes for load balancing 文章浏览阅读590次。文章讨论了在preforking模式下设置worker进程的数量对并发处理的影响，强调了选择适当数量以避免系统资源耗尽的重要性，给出了Uwsgi配置中的相关选项--processes和<workers> We are using uwsgi to serve the python app behind nginx. I wouldn't enable the gevent plugin - For any case where you are running only a single thread, Python can work a little faster with this disabled. Pay attention, it will works only if you have a single worker/process. The first steps to scaling are to increase the number of processes and/or threads running as workers. In uWSGI this is a matter of specifying --processes and --threads, respectively. Before touching any parameters, you must understand two fundamental concepts: your application's workload type and the concurrency For the sake of simplicity, let's just say that the number of threads means the number of parallel requests each of these child process can handle. Normally. workers 是 uWSGI 中的一个通用术语，指的是能够处理请求的工作单元。 workers 可以是进程，也可以是线程，具体取决于配置。 通常， workers 更常指代进程。 多进程单线程：通过设置 The master uWSGI process is necessary to gracefully re-spawn and pre-fork workers, consolidate logs, and manage many other features (shared memory, cron jobs, worker timeouts). This is done using an event driven, asynchronous system that allows Python 我如何对 uWSGI 进行性能调优（2）：设定 worker 数量 在上一篇文章中，我们谈到了不能随意设置 uWSGI worker 数量的原因，并通过实验大致推算 * processes 和 workers 参数的含义是一样的，理解为 进程， threads 就在 每个 processes 或 workers 下 运行的线程数了。 The best way to run uWSGI for a typical web app — Given the cornucopia of options uWSGI offers it's really hard to figure out what options and settings are good for your typical web app. Can I hope that the theoretical maximum of simultaneously served client connections is equal to uwsgi processes * threads? We are using se tl;dr : Consider optimizing uwsgi by setting `threads-stacksize = 64` or some small value in your uwsgi config. While one thread is waiting for a database For this reason, uWSGI also allows your workers to live within threads in the same process. uWSGI is configured for 6 processes and 5 threads per process. The easiest of which is serving static content. 了解uWSGI配置参数含义可从`uwsgi --help`获取，如`-p`或`--processes`、`--threads`分别指进程数和每个进程的线程数；`--py-auto-reload`等四个参数均用于开发时监测Python文件修改并重启uWSGI。 Question: I was expecting another thread also to be running in the 2nd worker process, but obviously that is not the case. Now I want to tell uWSGI to use processes for load balancing But when all available threads get busy serving, new clients are refused, although 99% of threads' time is spent in waiting for sub-request completion. However they hardly ever work without issues for any python web application. Python apps which do not use many C modules do not use the C stack very much. Non-blocking serving lets you utilize that idle time by Benchmark uWSGI vs gunicorn for async workers All of the WSGI benchmarks I found were pretty outdated or didn't include async results, so I decided to do spawned uWSGI master process (pid: 7167) spawned uWSGI worker 1 (pid: 7169, cores: 1) spawned uWSGI http 1 (pid: 7170) So your thread which prints i is running in master process, and your Our next option is max-worker-lifetime. You could enable threads (the threads option) and use less processes but that can be problematic for code that is CPU-bound or not thread-safe. 0 To spawn multiple threads just add --threads N where N is the number of threads to spawn. These threads solve the problems mentioned above regarding shared state—now your workers can share We talk about uWSGI workers as processes, but uWSGI workers can be thread based as well. 4-rc2) allows you to free your workers as soon as possible when some spe-cific pattern matches and can be delegated to a pure-c thread. Can anyone explain to me, what can We can ask uWSGI to start one or more threads per worker task to handle “offload” work. A smaller I have read the documentation of uWSGI mules, and some info from other sources. In most cases, however, we want to enable it using the --enable-threads option, as mentioned. How is it working internally? How could I create threads for each worker process [uwsgi] threads = 2 workers workers 是 uWSGI 中的一个通用术语，指的是能够处理请求的工作单元。 workers 可以是进程，也可以是线程，具体取决于配置。 通常， workers 更常指代进程。 三者的关系 I've installed Nginx + uWSGI + Django on a VDS with 3 CPU cores. But I'm confused about the differences between mules and python threads. Let's go ahead and add the As for whether you need a deep or shallow queue (socket listen queue length), this needs to be at least as long as the number of processes x number of threads and longer depending on what's in front of Running uWSGI in multithreading mode (with the threads options) will automatically enable threading support. This “strange” default behaviour is for performance reasons, no shame in that. Max Worker Lifetime The max-worker-lifetime option tells uWSGI to restart worker processes after the specified time (in seconds).