Running tasklist /m in cygwin hangs
Andrey Repin
anrdaemon@yandex.ru
Sat Apr 18 14:50:00 GMT 2015
Greetings, Marco Atzeri!
>>>> I can confirm it still hangs for me with 1.7.35. I am using the 32 bit (i686) Cygwin which is the only difference from Andrey's.
>>>>
>>
>>> on $ uname -vrsm
>>> CYGWIN_NT-6.1-WOW 1.7.35(0.287/5/3) 2015-03-04 12:07 i686
>>
>>> It is only a bit slow (both mintty and console)
>>
>>> $ time tasklist /m normaliz.DLL
>>> real 1m25.565s
>>
>> Oh... wow...
>>
>> real 0m0.088s
>>
>> [x].[x]
>>
>>> user 0m0.015s
>>> sys 0m0.046s
>>
>>> It seems some type of timeout in the interaction of this
>>> windows utility and cygwin
>>
>> Was it native console or pty ?
>>
> on 32bit cygwin on 64bit W7
> cmd+bash and mintty+bash have the same long time.
> As the effect is around 10 sec per line and "tasklist.exe" is looking
> which process is using a certain dll, I presume that there is a negative
> interactions (timeout, double sleep ?).
> cmd alone or 64 bit cygwin has no delay effect.
> However on 64bit you can compare
True.
> /cygdrive/c/windows/SysWOW64/tasklist.exe /m normaliz.dll
> /cygdrive/c/windows/System32/tasklist.exe /m normaliz.dll
> timing ;-)
It isn't as slow as yours, but definitely slow.
$ time /c/windows/System32/tasklist.exe /m normaliz.dll | iconv -f CP866
...skip...
real 0m0.093s
user 0m0.015s
sys 0m0.030s
$ time /c/windows/SysWOW64/tasklist.exe /m normaliz.dll | iconv -f CP866
...skip...
real 0m15.560s
user 0m0.000s
sys 0m0.045s
--
With best regards,
Andrey Repin
Saturday, April 18, 2015 17:42:41
Sorry for my terrible english...
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