为什么当我通过 LAN 或 Wifi 将上网本连接到互联网时，整个系统会变得迟钝？即使在空闲时，连接后 CPU 监视器也会显示 100% 的使用率。自从我安装 Ubuntu 11.10 以来，我已经遇到这个问题大约半年了。
我目前正在一台配备 1 GB RAM 和 1 GHz Intel Atom 处理器的东芝 NB-105 Satellite 上网本上使用 Ubuntu 12.04 LTS。
这是我的syslog：
$ tail -n 30 /var/log/syslog
May 23 02:45:28 jesselan-NB-105 kernel: [17552.933099] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:45:28 jesselan-NB-105 kernel: [17552.935345] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:45:28 jesselan-NB-105 kernel: [17552.935360] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:46:20 jesselan-NB-105 kernel: [17604.643371] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:46:20 jesselan-NB-105 kernel: [17604.649520] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:46:20 jesselan-NB-105 kernel: [17604.649547] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:47:11 jesselan-NB-105 kernel: [17656.349121] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:47:11 jesselan-NB-105 kernel: [17656.351373] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:47:11 jesselan-NB-105 kernel: [17656.351392] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:48:03 jesselan-NB-105 kernel: [17708.069032] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:48:03 jesselan-NB-105 kernel: [17708.071240] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:48:03 jesselan-NB-105 kernel: [17708.071254] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:48:55 jesselan-NB-105 kernel: [17759.901056] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:48:55 jesselan-NB-105 kernel: [17759.903757] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:48:55 jesselan-NB-105 kernel: [17759.903774] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:49:48 jesselan-NB-105 kernel: [17812.913124] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:49:48 jesselan-NB-105 kernel: [17812.915338] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:49:48 jesselan-NB-105 kernel: [17812.915365] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:50:40 jesselan-NB-105 kernel: [17864.205232] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:50:40 jesselan-NB-105 kernel: [17864.207449] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:50:40 jesselan-NB-105 kernel: [17864.207461] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:51:34 jesselan-NB-105 kernel: [17918.353070] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:51:34 jesselan-NB-105 kernel: [17918.355337] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:51:34 jesselan-NB-105 kernel: [17918.355347] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:52:25 jesselan-NB-105 kernel: [17969.913237] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:52:25 jesselan-NB-105 kernel: [17969.915480] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:52:25 jesselan-NB-105 kernel: [17969.915506] sd 6:0:0:0: [sdb] Assuming drive cache: write through
May 23 02:53:17 jesselan-NB-105 kernel: [18021.721949] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
May 23 02:53:17 jesselan-NB-105 kernel: [18021.724196] sd 6:0:0:0: [sdb] Asking for cache data failed
May 23 02:53:17 jesselan-NB-105 kernel: [18021.724210] sd 6:0:0:0: [sdb] Assuming drive cache: write through
下列的agc93建议检查哪些正在运行的进程占用的 CPU 最多，看起来是 gwibber.service，其次是 Google Chrome 和 Ubuntu One。我该怎么办？
答案1
问题解决了...
Gwibber 消耗了我的资源……我不得不取消选中设置：“登录时启动”