Stephen More wrote:
On 8/13/07, Larry Hall (Cygwin X) <reply-to-list-only-lh-x <AT> cygwin <DOT>
com> wrote:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<http://cygwin.com/acronyms/#PCYMTNQREAIYR>. Thanks.
Stephen More wrote:
What is causing XWin to startup so slow ?
Good question. What did you change recently?
Like all users would say....I did not change a thing.
( Could it have been an automatic update for XP ? )
I even re-installed cygwin from scratch to debug this issue.
As I mentioned, the X stuff hasn't changed in years (as there is no
maintainer - you want to be it?) so I would expect much help here.
As for whether the auto update of XP could have an effect, the answer
is of course!
My WAG is that you've changed some network/firewall settings that are
slowing down the X server startup.
What type of network traffic is the X server trying ? Is it trying to
do DNS lookups ? Is it trying to connect to a website ?
X uses TCP by default for it's connections. 6000 is the common default
port. You can change and/or disable that of course if you want (see
the X server documentation).
After a "strace -o /tmp/strace XWin" followed by sort -n /tmp/strace
I see 2 large pauses:
21 20702 [sig] XWin 972 wait_sig: signalling pack.wakeup 0x6E8
43 20745 [main] XWin 972 sig_send: returning 0x0 from sending signal -34
44 20789 [main] XWin 972 writev: writev (3, 0x22C780, 1)
32 20821 [main] XWin 972 fhandler_base::write: binary write
34 20855 [main] XWin 972 writev: 34 = write (3, 0x22C780, 1), errno 2
20775776 20796631 [main] XWin 972 sig_send: sendsig 0x6E4, pid 972,
signal -34, its_me 1
57 20796688 [main] XWin 972 sig_send: wakeup 0x6D8
108 20796796 [main] XWin 972 sig_send: Waiting for pack.wakeup 0x6D8
28 20796824 [sig] XWin 972 wait_sig: signalling pack.wakeup 0x6D8
29 235 [main] XWin 2844 set_myself: myself->dwProcessId 2844
58 293 [main] XWin 2844 child_copy: dll data - hp 0x5AC low
0x61100000, high 0x61104BA0, res 1
24014688 24014981 [main] XWin 2844 child_copy: dll bss - hp 0x5AC low
0x6113F000, high 0x611483D0, res 1
272 24015253 [main] XWin 2844 child_copy: user heap - hp 0x5AC low
0x100F0000, high 0x10130000, res 1
28 24015281 [main] XWin 2844 child_copy: done
574 24015855 [main] XWin 2844 child_copy: data - hp 0x5AC low
0x733000, high 0x77EDD0, res 1
298 24016153 [main] XWin 2844 child_copy: bss - hp 0x5AC low
0x7D9000, high 0x80B3F0, res 1
29 24016182 [main] XWin 2844 child_copy: done
Does this info help at all ?
Not really no. However, if you had not changed any Cygwin piece prior to
noticing the problem, I think it's safe to assume that the delay is
introduced by some external change, which is why I mentioned network and
firewall possibilities. Depending on your source for A/V software, this
is a possible culprit too.
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
216 Dalton Rd. (508) 429-6305 - FAX
Holliston, MA 01746
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