Manual:$wgJobRunRate/zh

细节
每个请求要执行的作业数. 可能介於0到1之間，在这种情况下，根据概率执行作业或不执行作业. If set to a nonzero integer (1 or higher), that many jobs are performed per request. 如果为零，则在普通apache请求期间将不会完成作业. 在这种情况下， 应该定期运行.

原因
The job queue is designed to hold many short tasks. By default, each time a request runs, one job is taken from the job queue and executed. If the performance burden of this is too great, you can reduce $wgJobRunRate by putting something like this in your :

This will cause one item in the job queue to run on average every 100 page views. It is important to understand that this means that on every page view the probability of running a queued item is 1 in 100. This means that (in theory at least) you could still end up with one job being run every page impression, or (at the other end of the scale) no jobs being run at all. However, in practice, providing you have enough traffic to make a meaningful sample size, it should be about 1 per 100 requests.

In some versions of mediawiki, you can view the number of jobs at Special:Statistics. However, this number is a rough estimate, and thus misleading, so it was removed in 1.17.

The job queue is located in, function  (  before 1.23).