{"id":1000270,"date":"2024-12-27T09:48:34","date_gmt":"2024-12-27T01:48:34","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1000270.html"},"modified":"2024-12-27T09:48:36","modified_gmt":"2024-12-27T01:48:36","slug":"python%e5%a6%82%e4%bd%95%e8%bf%87%e5%8e%bbapp%e5%86%85%e5%ad%98","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1000270.html","title":{"rendered":"python\u5982\u4f55\u8fc7\u53bbapp\u5185\u5b58"},"content":{"rendered":"

\"python\u5982\u4f55\u8fc7\u53bbapp\u5185\u5b58\"<\/p>\n

\u4e00\u3001PYTHON\u83b7\u53d6APP\u5185\u5b58\u7684\u5e38\u7528\u65b9\u6cd5 <\/p>\n<\/p>\n

\u8981\u5728Python\u4e2d\u83b7\u53d6\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528psutil\u5e93\u3001memory_profiler\u5e93\u3001tracemalloc\u6a21\u5757<\/strong>\u3002\u5176\u4e2d\uff0cpsutil\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u65b9\u6cd5\u6765\u83b7\u53d6\u7cfb\u7edf\u548c\u8fdb\u7a0b\u7684\u76f8\u5173\u4fe1\u606f\uff1bmemory_profiler\u5e93\u53ef\u4ee5\u901a\u8fc7\u5206\u6790\u4ee3\u7801\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u6765\u5e2e\u52a9\u4f18\u5316\u4ee3\u7801\uff1btracemalloc\u6a21\u5757\u53ef\u4ee5\u8ddf\u8e2aPython\u5185\u5b58\u7684\u5206\u914d\u60c5\u51b5\u3002psutil\u5e93\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7cfb\u7edf\u548c\u8fdb\u7a0b\u4fe1\u606f\u3002<\/strong><\/p>\n<\/p>\n

psutil\u5e93<\/strong>\u53ef\u4ee5\u4f7f\u7528Process\u7c7b\u6765\u83b7\u53d6\u7279\u5b9a\u8fdb\u7a0b\u7684\u5185\u5b58\u4fe1\u606f\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u83b7\u53d6\u76ee\u6807\u5e94\u7528\u7a0b\u5e8f\u7684\u8fdb\u7a0bID\uff08PID\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u81ea\u5e26\u7684\u4efb\u52a1\u7ba1\u7406\u5668\u6216\u8005\u547d\u4ee4\u884c\u5de5\u5177\u6765\u83b7\u53d6PID\u3002\u7136\u540e\uff0c\u4f7f\u7528psutil\u5e93\u4e2d\u7684Process\u7c7b\uff0c\u901a\u8fc7PID\u83b7\u53d6\u8fdb\u7a0b\u5bf9\u8c61\uff0c\u8fdb\u800c\u8c03\u7528memory_info()\u65b9\u6cd5\u83b7\u53d6\u5185\u5b58\u4fe1\u606f\u3002<\/p>\n<\/p>\n

import psutil<\/p>\n
pid = 1234  # \u66ff\u6362\u4e3a\u76ee\u6807\u5e94\u7528\u7a0b\u5e8f\u7684PID<\/p>\n
process = psutil.Process(pid)<\/p>\n
memory_info = process.memory_info()<\/p>\n
print(f"RSS: {memory_info.rss \/ (1024  2)} MB")<\/p>\n
print(f"VMS: {memory_info.vms \/ (1024  2)} MB")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001PSUTIL\u5e93\u8be6\u7ec6\u4ecb\u7ecd  <\/p>\n<\/p>\n
psutil\u5e93<\/strong>\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684Python\u5e93\uff0c\u63d0\u4f9b\u4e86\u4e00\u7ec4\u65b9\u6cd5\u6765\u8f7b\u677e\u83b7\u53d6\u7cfb\u7edf\u548c\u8fdb\u7a0b\u7684\u4fe1\u606f\u3002\u5b83\u652f\u6301Windows\u3001Linux\u3001macOS\u7b49\u591a\u79cd\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5e76\u4e14\u53ef\u4ee5\u83b7\u53d6CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u7f51\u7edc\u7b49\u591a\u65b9\u9762\u7684\u4fe1\u606f\u3002  <\/p>\n<\/p>\n
    \n
  1. \u5b89\u88c5\u4e0e\u57fa\u672c\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
    \u8981\u4f7f\u7528psutil\u5e93\uff0c\u9996\u5148\u9700\u8981\u786e\u4fdd\u5df2\u7ecf\u5b89\u88c5\u3002\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a  <\/p>\n<\/p>\n
    pip install psutil<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u5bfc\u5165psutil\u6a21\u5757\u5e76\u8c03\u7528\u76f8\u5173\u65b9\u6cd5\u6765\u83b7\u53d6\u7cfb\u7edf\u548c\u8fdb\u7a0b\u7684\u4fe1\u606f\u3002  <\/p>\n<\/p>\n
    import psutil<\/p>\n
    \u83b7\u53d6\u7cfb\u7edfCPU\u4f7f\u7528\u7387<\/strong><\/h2>\n
    cpu_usage = psutil.cpu_percent(interval=1)<\/p>\n
    print(f"CPU Usage: {cpu_usage}%")<\/p>\n
    \u83b7\u53d6\u7cfb\u7edf\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/h2>\n
    memory_info = psutil.virtual_memory()<\/p>\n
    print(f"Total Memory: {memory_info.total \/ (1024  3)} GB")<\/p>\n
    print(f"AvAI<\/a>lable Memory: {memory_info.available \/ (1024  3)} GB")<\/p>\n
    <\/code><\/pre>\n<\/p>\n
      \n
    1. \u83b7\u53d6\u8fdb\u7a0b\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/li>\n<\/ol>\n
      psutil\u5e93\u63d0\u4f9b\u4e86Process\u7c7b\uff0c\u901a\u8fc7\u8be5\u7c7b\u53ef\u4ee5\u83b7\u53d6\u7279\u5b9a\u8fdb\u7a0b\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002  <\/p>\n<\/p>\n
      pid = 1234  # \u66ff\u6362\u4e3a\u76ee\u6807\u5e94\u7528\u7a0b\u5e8f\u7684PID<\/p>\n
      process = psutil.Process(pid)<\/p>\n
      \u83b7\u53d6\u5185\u5b58\u4fe1\u606f<\/strong><\/h2>\n
      memory_info = process.memory_info()<\/p>\n
      print(f"RSS: {memory_info.rss \/ (1024  2)} MB")<\/p>\n
      print(f"VMS: {memory_info.vms \/ (1024  2)} MB")<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      RSS\uff08Resident Set Size\uff09<\/strong>\u8868\u793a\u8fdb\u7a0b\u5b9e\u9645\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u800cVMS\uff08Virtual Memory Size\uff09<\/strong>\u8868\u793a\u8fdb\u7a0b\u5206\u914d\u7684\u865a\u62df\u5185\u5b58\u5927\u5c0f\u3002  <\/p>\n<\/p>\n
      \u4e09\u3001MEMORY_PROFILER\u5e93\u7684\u4f7f\u7528  <\/p>\n<\/p>\n
      memory_profiler\u5e93<\/strong>\u4e13\u6ce8\u4e8e\u5206\u6790Python\u4ee3\u7801\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u8bc6\u522b\u4ee3\u7801\u4e2d\u7684\u5185\u5b58\u74f6\u9888\u3002  <\/p>\n<\/p>\n
        \n
      1. \u5b89\u88c5\u4e0e\u57fa\u672c\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
        \u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u5b89\u88c5memory_profiler\u5e93\uff1a  <\/p>\n<\/p>\n
        pip install memory_profiler<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7@profile<\/code>\u88c5\u9970\u5668\u5bf9\u7279\u5b9a\u51fd\u6570\u8fdb\u884c\u5185\u5b58\u5206\u6790\u3002  <\/p>\n<\/p>\n
        from memory_profiler import profile<\/p>\n
        @profile<\/p>\n
        def my_function():<\/p>\n
            a = [1] * (10  6)<\/p>\n
            b = [2] * (2 * 10  7)<\/p>\n
            del b<\/p>\n
            return a<\/p>\n
        my_function()<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u8fd0\u884c\u4ee3\u7801\u65f6\uff0c\u9700\u8981\u4f7f\u7528-m memory_profiler<\/code>\u9009\u9879\uff1a  <\/p>\n<\/p>\n
        python -m memory_profiler my_script.py<\/p>\n
        <\/code><\/pre>\n<\/p>\n
          \n
        1. \u5206\u6790\u7ed3\u679c<\/strong><\/li>\n<\/ol>\n
          memory_profiler\u5e93\u4f1a\u8f93\u51fa\u6bcf\u884c\u4ee3\u7801\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5b9a\u4f4d\u5185\u5b58\u6d88\u8017\u8f83\u5927\u7684\u90e8\u5206\u3002\u901a\u8fc7\u5bf9\u6bd4\u4e0d\u540c\u7248\u672c\u7684\u4ee3\u7801\uff0c\u53ef\u4ee5\u6709\u6548\u4f18\u5316\u5185\u5b58\u4f7f\u7528\u3002  <\/p>\n<\/p>\n
          \u56db\u3001TRACEMALLOC\u6a21\u5757\u7684\u4f7f\u7528  <\/p>\n<\/p>\n
          tracemalloc\u6a21\u5757<\/strong>\u662fPython\u5185\u7f6e\u7684\u5185\u5b58\u8ddf\u8e2a\u6a21\u5757\uff0c\u53ef\u4ee5\u8ddf\u8e2a\u5185\u5b58\u5206\u914d\u60c5\u51b5\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u8bc6\u522b\u5185\u5b58\u6cc4\u6f0f\u3002  <\/p>\n<\/p>\n
            \n
          1. \u57fa\u672c\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
            \u53ef\u4ee5\u901a\u8fc7tracemalloc\u6a21\u5757\u6765\u542f\u52a8\u5185\u5b58\u8ddf\u8e2a\uff0c\u5e76\u83b7\u53d6\u5185\u5b58\u5feb\u7167\uff1a  <\/p>\n<\/p>\n
            import tracemalloc<\/p>\n
            \u542f\u52a8\u5185\u5b58\u8ddf\u8e2a<\/strong><\/h2>\n
            tracemalloc.start()<\/p>\n
            \u6267\u884c\u4ee3\u7801<\/strong><\/h2>\n
            a = [1] * (10  6)<\/p>\n
            b = [2] * (2 * 10  7)<\/p>\n
            del b<\/p>\n
            \u83b7\u53d6\u5185\u5b58\u5feb\u7167<\/strong><\/h2>\n
            snapshot = tracemalloc.take_snapshot()<\/p>\n
            \u6253\u5370\u5185\u5b58\u7edf\u8ba1\u4fe1\u606f<\/strong><\/h2>\n
            for stat in snapshot.statistics('lineno'):<\/p>\n
                print(stat)<\/p>\n
            <\/code><\/pre>\n<\/p>\n
              \n
            1. \u5206\u6790\u5185\u5b58\u6cc4\u6f0f<\/strong><\/li>\n<\/ol>\n
              \u901a\u8fc7\u5bf9\u6bd4\u4e0d\u540c\u65f6\u95f4\u70b9\u7684\u5185\u5b58\u5feb\u7167\uff0c\u53ef\u4ee5\u8bc6\u522b\u5185\u5b58\u6cc4\u6f0f\u548c\u5185\u5b58\u589e\u957f\u60c5\u51b5\u3002tracemalloc\u6a21\u5757\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7edf\u8ba1\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6309\u4ee3\u7801\u884c\u3001\u6587\u4ef6\u3001\u51fd\u6570\u7b49\u8fdb\u884c\u5185\u5b58\u4f7f\u7528\u7edf\u8ba1\u3002  <\/p>\n<\/p>\n
              \u4e94\u3001\u7ed3\u5408\u4f7f\u7528\u591a\u79cd\u5de5\u5177\u8fdb\u884c\u5185\u5b58\u5206\u6790  <\/p>\n<\/p>\n
              \u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u4e0a\u8ff0\u5de5\u5177\u8fdb\u884c\u5185\u5b58\u5206\u6790\u548c\u4f18\u5316\u3002psutil\u5e93\u53ef\u4ee5\u7528\u4e8e\u76d1\u63a7\u7cfb\u7edf\u548c\u8fdb\u7a0b\u7684\u6574\u4f53\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0cmemory_profiler\u5e93\u53ef\u4ee5\u7528\u4e8e\u5206\u6790Python\u4ee3\u7801\u7684\u5185\u5b58\u6d88\u8017\uff0ctracemalloc\u6a21\u5757\u53ef\u4ee5\u7528\u4e8e\u8bc6\u522b\u5185\u5b58\u6cc4\u6f0f\u548c\u5185\u5b58\u589e\u957f\u3002\u901a\u8fc7\u591a\u79cd\u5de5\u5177\u7684\u7ed3\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u66f4\u5168\u9762\u5730\u4e86\u89e3\u548c\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002  <\/p>\n<\/p>\n
                \n
              1. \u76d1\u63a7\u6574\u4f53\u5185\u5b58\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
                \u4f7f\u7528psutil\u5e93\u76d1\u63a7\u7cfb\u7edf\u548c\u8fdb\u7a0b\u7684\u6574\u4f53\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u8bc6\u522b\u5185\u5b58\u4f7f\u7528\u7684\u5f02\u5e38\u60c5\u51b5\u3002  <\/p>\n<\/p>\n
                import psutil<\/p>\n
                \u83b7\u53d6\u7cfb\u7edf\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/h2>\n
                memory_info = psutil.virtual_memory()<\/p>\n
                print(f"Total Memory: {memory_info.total \/ (1024  3)} GB")<\/p>\n
                print(f"Used Memory: {memory_info.used \/ (1024  3)} GB")<\/p>\n
                \u83b7\u53d6\u7279\u5b9a\u8fdb\u7a0b\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/h2>\n
                pid = 1234<\/p>\n
                process = psutil.Process(pid)<\/p>\n
                process_memory_info = process.memory_info()<\/p>\n
                print(f"Process RSS: {process_memory_info.rss \/ (1024  2)} MB")<\/p>\n
                <\/code><\/pre>\n<\/p>\n
                  \n
                1. \u5206\u6790Python\u4ee3\u7801\u5185\u5b58\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
                  \u4f7f\u7528memory_profiler\u5e93\u5bf9\u5173\u952e\u51fd\u6570\u8fdb\u884c\u5185\u5b58\u5206\u6790\uff0c\u8bc6\u522b\u5185\u5b58\u6d88\u8017\u8f83\u5927\u7684\u90e8\u5206\u3002  <\/p>\n<\/p>\n
                  from memory_profiler import profile<\/p>\n
                  @profile<\/p>\n
                  def my_function():<\/p>\n
                      a = [1] * (10  6)<\/p>\n
                      b = [2] * (2 * 10  7)<\/p>\n
                      del b<\/p>\n
                      return a<\/p>\n
                  my_function()<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                    \n
                  1. \u8ddf\u8e2a\u5185\u5b58\u5206\u914d\u548c\u6cc4\u6f0f<\/strong><\/li>\n<\/ol>\n
                    \u4f7f\u7528tracemalloc\u6a21\u5757\u8ddf\u8e2a\u5185\u5b58\u5206\u914d\u60c5\u51b5\uff0c\u8bc6\u522b\u5185\u5b58\u6cc4\u6f0f\u548c\u5185\u5b58\u589e\u957f\u3002  <\/p>\n<\/p>\n
                    import tracemalloc<\/p>\n
                    tracemalloc.start()<\/p>\n
                    \u6267\u884c\u4ee3\u7801<\/strong><\/h2>\n
                    a = [1] * (10  6)<\/p>\n
                    b = [2] * (2 * 10  7)<\/p>\n
                    del b<\/p>\n
                    snapshot = tracemalloc.take_snapshot()<\/p>\n
                    for stat in snapshot.statistics('lineno'):<\/p>\n
                        print(stat)<\/p>\n
                    <\/code><\/pre>\n<\/p>\n
                    \u901a\u8fc7\u7ed3\u5408\u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\uff0c\u53ef\u4ee5\u66f4\u5168\u9762\u5730\u4e86\u89e3\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff0c\u8bc6\u522b\u5185\u5b58\u74f6\u9888\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u4f18\u5316\u63aa\u65bd\u3002<\/p>\n<\/p>\n
                    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                     \u5982\u4f55\u4f7f\u7528Python\u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1f<\/strong>
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