python resource 模块

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(只用于 Unix , 可选) resource 模块用于查询或修改当前系统资源限制设置. Example 12-10 展示了如何执行查询操作, Example 12-11 展示了如何执行修改操作

Example 12-10. 使用 resource 模块查询当前设置

import resourceprint "usage stats", "=>", resource.getrusage(resource.RUSAGE_SELF)print "max cpu", "=>", resource.getrlimit(resource.RLIMIT_CPU)print "max data", "=>", resource.getrlimit(resource.RLIMIT_DATA)print "max processes", "=>", resource.getrlimit(resource.RLIMIT_NPROC)print "page size", "=>", resource.getpagesize()

usage stats => (0.03, 0.02, 0, 0, 0, 0, 75, 168, 0, 0, 0, 0, 0, 0, 0, 0)max cpu => (2147483647, 2147483647)max data => (2147483647, 2147483647)max processes => (256, 256)page size => 4096

Example 12-11. 使用 resource 模块限制资源

File: resource-example-2.pyimport resourceresource.setrlimit(resource.RLIMIT_CPU, (0, 1))# pretend we're busyfor i in range(1000):    for j in range(1000):        for k in range(1000):            pass

CPU time limit exceeded