软件中心需要很长时间才能加载

Question

我有一台快速的计算机（出色的处理器，出色的 SSD），但软件中心需要 30 秒的时间来加载。这不是抱怨，我认为可能有问题。Synaptic 需要一秒钟的时间来加载。

我跑去strace software-center查看它是否在震动磁盘（它是一个 SSD - 我听不到它）并且它正在统计并试图打开整个文件负载。这是摘录：

open("/usr/local/lib/python2.6/dist-packages/FlexGet-1.0r1465-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/FlexGet-1.0r1465-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/FlexGet-1.0r1465-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/progressbar-2.3_dev-py2.6.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/progressbar-2.3_dev-py2.6.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/progressbar-2.3_dev-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/progressbar-2.3_dev-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/progressbar-2.3_dev-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/pynzb-0.1.0-py2.6.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/pynzb-0.1.0-py2.6.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/pynzb-0.1.0-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/pynzb-0.1.0-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/pynzb-0.1.0-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/PyRSS2Gen-1.0.0-py2.6.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyRSS2Gen-1.0.0-py2.6.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyRSS2Gen-1.0.0-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyRSS2Gen-1.0.0-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyRSS2Gen-1.0.0-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/html5lib-0.90-py2.6.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/html5lib-0.90-py2.6.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/html5lib-0.90-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/html5lib-0.90-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/html5lib-0.90-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/PyYAML-3.09-py2.6-linux-x86_64.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyYAML-3.09-py2.6-linux-x86_64.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyYAML-3.09-py2.6-linux-x86_64.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyYAML-3.09-py2.6-linux-x86_64.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/PyYAML-3.09-py2.6-linux-x86_64.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/local/lib/python2.6/dist-packages/transmissionrpc-0.6-py2.6.egg/StringIO", 0x7fff19d3af30) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/transmissionrpc-0.6-py2.6.egg/StringIO.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/transmissionrpc-0.6-py2.6.egg/StringIOmodule.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/transmissionrpc-0.6-py2.6.egg/StringIO.py", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/local/lib/python2.6/dist-packages/transmissionrpc-0.6-py2.6.egg/StringIO.pyc", O_RDONLY) = -1 ENOENT (No such file or directory)

这可能是一个红鲱鱼。后来它停在这个：

poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\v\0\0\0\3\0\0\0=\0\0\0\6\1s\0\7\0\0\0:1.3497\0"..., 2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 91
recvmsg(3, 0x7fff8c57cc00, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\1\0\0\0\0\3\0\0\0{\0\0\0\1\1o\0\32\0\0\0/com/ubu"..., 144}, {"", 0}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 144
poll([{fd=3, events=POLLIN}], 1, 25000

然后它再做一次……这两次暂停占了大部分加载时间。

然后它真的会因为数以千计的轮询/读取/暂时不可用的行而崩溃。

那么这里到底发生了什么？为什么软件中心扫描看起来是任何可能的 python 包寻找的东西StringIO？漏洞？

那么为什么它会在看起来像是对 something.ubuntu.com 的网络请求上停滞不前（看不到完整消息）？无论如何，它为什么要与 ubuntu.com 交谈？

Answer 1

它似乎正在获取可用包的完全最新视图（就像什么apt-get update一样），这可能需要一段时间，具体取决于缓存的过期时间、软件存储库的响应速度以及您的速度网络连接。

正如评论中提到的，刷新时缺乏交互性似乎是一个错误。