My question is like
I think my problem is caused by another problem.
Here is an example of extremely slow commands in Cygwin:
time for i in {1..10} ; do bash -c "echo Hello" ; done Hello ... real 0m21.588s user 0m0.458s sys 0m0.989s
Something is causing this ... but what could it be?
Things I tried:
- Disabling Windows Firewall and the need for Windows security.
- I have no other antivirus products.
- I tried to kill different user processes to see if any of them could intervene - no luck.
- I am not connected to any network.
- If I run the commands in
C:\cygwin\bin via windows CMD , for example. C:\cygwin\bin\ls.exe , they are still slow.
Then I tried to run this command to better understand what was going on:
strace -o bash.strace bash -c "echo hello"
From what I see, there is one line that took 90% of the time:
(in case this is not clear, this is a line starting with 1028210 - I included other lines for context)
5 5 [main] bash 1088 open_shared: name shared.5, n 5, shared 0x60FB0000 (wanted 0x60FB0000), h 0x74C 208 213 [main] bash 1088 heap_init: heap base 0x530000, heap top 0x530000 118 331 [main] bash 1088 open_shared: name S-1-5-21-2025429265-1957994488-1801674531-1003.1, n 1, shared 0x60FC0000 (wanted 0x60FC0000), h 0x748 85 416 [main] bash 1088 user_info::create: opening user shared for 'S-1-5-21-2025429265-1957994488-1801674531-1003' at 0x60FC0000 83 499 [main] bash 1088 user_info::create: user shared version 6112AFB3 344 843 [main] bash 1088 dll_crt0_0: finished dll_crt0_0 initialization 283 1126 [main] bash 1088 _cygtls::remove: wait 0xFFFFFFFF 87 1213 [main] bash 1088 _cygtls::remove: removed 0x23CE64 element 0 104 1317 [main] bash 1088 _cygtls::remove: wait 0xFFFFFFFF 70 1387 [main] bash 1088 _cygtls::remove: removed 0x23CE64 element 0 102 1489 [main] bash 1088 _cygtls::remove: wait 0xFFFFFFFF 70 1559 [main] bash 1088 _cygtls::remove: removed 0x23CE64 element 0 110 1669 [main] bash 1088 _cygtls::remove: wait 0xFFFFFFFF 70 1739 [main] bash 1088 _cygtls::remove: removed 0x23CE64 element 0 781 2520 [main] bash 1088 _cygtls::remove: wait 0xFFFFFFFF 76 2596 [main] bash 1088 _cygtls::remove: removed 0x23CE64 element 0 278 2874 [sig] bash 1088 wait_sig: entering ReadFile loop, my_readsig 0x72C, my_sendsig 0x728 1028210 1031084 [main] bash 1088 mount_info::conv_to_posix_path: conv_to_posix_path (C:\cygwin\home\Adam, no-keep-rel, no-add-slash) 107 1031191 [main] bash 1088 normalize_win32_path: C:\cygwin\home\Adam = normalize_win32_path (C:\cygwin\home\Adam) 59 1031250 [main] bash 1088 mount_info::conv_to_posix_path: /home/Adam = conv_to_posix_path (C:\cygwin\home\Adam) 11535 1042785 [main] bash 1088 _cygwin_istext_for_stdio: fd 0: not open 69 1042854 [main] bash 1088 _cygwin_istext_for_stdio: fd 1: not open 62 1042916 [main] bash 1088 _cygwin_istext_for_stdio: fd 2: not open 360 1043276 [main] bash (1088) open_shared: name cygpid.1088, n 1088, shared 0x60FE0000 (wanted 0x60FE0000), h 0x678 65 1043341 [main] bash 1088 ********************************************** 46 1043387 [main] bash 1088 Program name: C:\cygwin\bin\bash.exe (pid 1088, ppid 1) 46 1043433 [main] bash 1088 App version: 1007.7, api: 0.230 45 1043478 [main] bash 1088 DLL version: 1007.9, api: 0.237 46 1043524 [main] bash 1088 DLL build: 2011-03-29 10:10 51 1043575 [main] bash 1088 OS version: Windows NT-5.1 45 1043620 [main] bash 1088 Heap size: 402653184 45 1043665 [main] bash 1088 ********************************************** 45 1043710 [main] bash 1088 pinfo::thisproc: myself->dwProcessId 1088 50 1043760 [main] bash 1088 time: 1321506515 = time (0) 862 1044622 [main] bash 1088 parse_options: glob (called func) 78 1044700 [main] bash 1088 parse_options: returning 45 1044745 [main] bash 1088 environ_init: GetEnvironmentStrings returned 0x10000 ...
I don’t quite understand what the problem the link may be talking about:
mount_info::conv_to_posix_path: conv_to_posix_path (C:\cygwin\home\Adam, no-keep-rel, no-add-slash)
How can I debug this problem further? Does anyone have any ideas?